San Francisco, San Francisco Co., California, USAi
| Regional Level Types | |
|---|---|
| San Francisco | - not defined - |
| San Francisco Co. | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 46' 29'' North , 122° 25' 5'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| San Francisco | 864,816 (2017) | 0.1km |
| Mission District | 47,234 (2017) | 1.7km |
| Chinatown | 100,574 (2017) | 2.5km |
| Noe Valley | 22,893 (2017) | 3.1km |
| Visitacion Valley | 22,534 (2017) | 6.5km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| San Francisco Gem and Mineral Society, Inc. | San Francisco, California | 0km |
| Northern California Geological Society | Orinda, California | 24km |
| Mineral & Gem Society of Castro Valley | Hayward, California | 32km |
| Sequoia Gem and Mineral Society | Redwood City, California | 36km |
| Vallejo Gem & Mineral Society | Vallejo, California | 39km |
A major, incorporated city corresponding also to the county of the same name.
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Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities28 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Rock list contains entries from the region specified including sub-localities
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Antigorite Formula: Mg3(Si2O5)(OH)4 Reference: www.dvminerals.com/thumbs.html |
| ⓘ 'Apophyllite Group' Formula: AB4[Si8O22]X · 8H2O Localities: Colour: Colourless Description: Occurs as minute crystals. Reference: Schaller, Waldemar Theodore (1905b), Mineralogical notes: USGS Bulletin 262: 124, 126; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 445; www.missourigeologists.org/Min-Loc1-2005.pdf. |
| ⓘ Aragonite Formula: CaCO3 Habit: Slender prisms Colour: Colourless Description: Occurs in seams in serpentine. Reference: Eakle, Arthur Starr (1901), Mineralogical notes; with chemical analyses by W.T. Schaller: University of California, Department of Geological Science Bulletin: 2: 316; Schlocker, J. (1974) Geology of the San Francisco North quadrangle. USGS Professional Paper 782, 109 pp.: 60; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 216; www.missourigeologists.org/Min-Loc1-2005.pdf. |
| ⓘ Baryte Formula: BaSO4 Habit: Tabular Description: Occurs as crystals in seams in serpentine. Reference: Eakle, Arthur Starr (1901), Mineralogical notes; with chemical analyses by W.T. Schaller: University of California, Department of Geological Science Bulletin: 2: 316; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 98; www.missourigeologists.org/Min-Loc1-2005.pdf. |
| ⓘ Brucite Formula: Mg(OH)2 Localities: Reference: www.missourigeologists.org/Min-Loc1-2005.pdf. |
| ⓘ Calcite Formula: CaCO3 Description: Occurs as crystals exhibiting uncommon faces to several cm in size. Reference: Schaller, Waldemar Theodore (1911a), Mineralogical notes, series 1: USGS Bulletin 490: 103; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 118; www.missourigeologists.org/Min-Loc1-2005.pdf. |
| ⓘ Chromite Formula: Fe2+Cr3+2O4 Description: Occurs in beach sands. Reference: Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 137; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 141. |
| ⓘ Cinnabar Formula: HgS Localities: Unnamed Hg occurrence [1], Divisadero Street near McAllister Street, Lower Haight neighborhood, San Francisco, San Francisco Co., California, USA Divisadero Street, San Francisco, San Francisco Co., California, USA Unnamed Hg occurrence [2], Twin Peaks, San Francisco, San Francisco Co., California, USA Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| ⓘ 'Clinochrysotile' Reference: Schlocker, J. (1974) Geology of the San Francisco North quadrangle. USGS Professional Paper 782, 109 pp.: 58; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 424. |
| ⓘ Coalingite Formula: Mg10Fe3+2(OH)24[CO3] · 2H2O Colour: Golden-brown Description: Occurs as veinlets 1 to 2 mm thick in serpentine that is largely altered to pyroaurite. Reference: Learned, E. (1965) Sjogrenite confirmed from California. Gems and Minerals: 332: 54; Schlocker, J. (1974) Geology of the San Francisco North quadrangle. USGS Professional Paper 782, 109 pp.: 59, 62; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 199. |
| ⓘ Datolite Formula: CaB(SiO4)(OH) Colour: White Description: Occurs as glassy crystals and white veins in an altered diabase dike in serpentine. Reference: Eakle, Arthur Starr (1901), Mineralogical notes; with chemical analyses by W.T. Schaller: University of California, Department of Geological Science Bulletin: 2: 317; Kunz, George Frederick (1905a), Gems, jewelers’ materials, and ornamental stones of California: California Division Mines Bulletin 37, 171 pp.: 97; Schaller, Waldemar Theodore (1911a), Mineralogical notes, series 1: USGS Bulletin 490: 103; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 508; Rocks & Minerals (2010): 85: 338-345; www.missourigeologists.org/Min-Loc1-2005.pdf.
|
| ⓘ Diopside Formula: CaMgSi2O6 Description: Not specifically identified. Occurs as grains in serpentine. Reference: Palache, Charles (1894a), The Iherzolite serpentine and associated rocks of the Potrero, San Francisco: University of California, Department of Geological Sciences Bulletin: 1: 166; Lawson, Andrew Cowper (1895), Sketch of the geology of the San Francisco peninsula: USGS 15th. Ann. Report: 447; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 308. |
| ⓘ Diopside var. Diallage Formula: CaMgSi2O6 Description: Not specifically identified. Occurs as grains in serpentine. Reference: Palache, Charles (1894a), The Iherzolite serpentine and associated rocks of the Potrero, San Francisco: University of California, Department of Geological Sciences Bulletin: 1: 166; Lawson, Andrew Cowper (1895), Sketch of the geology of the San Francisco peninsula: USGS 15th. Ann. Report: 447; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 308. |
| ⓘ Enstatite Formula: Mg2Si2O6 Description: Abundant in serpentine. Reference: Blake, Wm. P. (1858), Report of a geological reconnaissance in California 370 pp., New York: 307; Palache, Charles (1894a), The Iherzolite serpentine and associated rocks of the Potrero, San Francisco: University of California, Department of Geological Sciences Bulletin: 1: 166; Lawson, Andrew Cowper (1895), Sketch of the geology of the San Francisco peninsula: USGS 15th. Ann. Report: 447; Eakle, Arthur Starr (1901), Mineralogical notes; with chemical analyses by W.T. Schaller: University of California, Department of Geological Science Bulletin: 2: 316; Kunz, George Frederick (1905a), Gems, jewelers’ materials, and ornamental stones of California: California Division Mines Bulletin 37, 171 pp.: 81; Taliaferro, Nicholas Lloyd (1943b), Franciscan-Knoxville problem: American Association of Petroleum Geologists Bulletin 27: 154. |
| ⓘ Epsomite Formula: MgSO4 · 7H2O Colour: White Description: Occurs as mixtures with hexahydrite. Soft, powdery efflorescences on protected surfaces of serpentine. Reference: Schlocker, J. (1974) Geology of the San Francisco North quadrangle. USGS Professional Paper 782, 109 pp.: 62; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 267. |
| ⓘ 'Fayalite-Forsterite Series' Reference: Palache, Charles (1894a), The Iherzolite serpentine and associated rocks of the Potrero, San Francisco: University of California, Department of Geological Sciences Bulletin: 1: 166; Lawson, Andrew Cowper (1895), Sketch of the geology of the San Francisco peninsula: USGS 15th. Ann. Report: 447; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 308. |
| ⓘ Gold Formula: Au Description: Placer material. Occurs in black sands. Reference: Clark, Wm. B. (1970a) Gold districts of California: California Division Mines & Geology Bulletin 193; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 30. |
| ⓘ Gyrolite Formula: NaCa16Si23AlO60(OH)8 · 14H2O Description: Occurs as spherical or massive with apophyllite; platy or plumose aggregates replacing wall rock in fissures of basalt. Reference: Schaller, Waldemar Theodore (1905b), Mineralogical notes: USGS Bulletin 262: 124, 126; Schaller, Waldemar Theodore (1911a), Mineralogical notes, series 1: USGS Bulletin 490: 103; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 445, 447; www.missourigeologists.org/Min-Loc1-2005.pdf. |
| ⓘ Hexahydrite Formula: MgSO4 · 6H2O Colour: White Description: Occurs as mixtures with epsomite. Soft, powdery efflorescences on protected surfaces of serpentine. Reference: Schlocker, J. (1974) Geology of the San Francisco North quadrangle. USGS Professional Paper 782, 109 pp.: 62; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 267. |
| ⓘ Hydromagnesite Formula: Mg5(CO3)4(OH)2 · 4H2O Localities: Description: Occurs as botryoidal masses and veins 3 to 4 inches (7.5 to 10 cm) wide in serpentine. Reference: Mining and Scientific Press (1881), Formation of the San Francisco peninsula: Mining and Scientific Press: 42: 28; Eakle, Arthur Starr (1901), Mineralogical notes; with chemical analyses by W.T. Schaller: University of California, Department of Geological Science Bulletin: 2: 316; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 201; rruff.geo.arizona.edu/doclib/hom/hydromagnesite.pdf |
| ⓘ Idrialite Formula: C22H14 Localities: Reference: www.missourigeologists.org/Min-Loc1-2005.pdf. |
| ⓘ Lizardite Formula: Mg3(Si2O5)(OH)4 Reference: Schlocker, J. (1974) Geology of the San Francisco North quadrangle. USGS Professional Paper 782, 109 pp.: 58; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 424. |
| ⓘ Magnesite Formula: MgCO3 Localities: Description: A little occurs here. Reference: Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 249. |
| ⓘ Mercury Formula: Hg Localities: Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| ⓘ Nesquehonite Formula: MgCO3 · 3H2O Colour: White Description: Soft surface efflorescences in moist places in serpentine. Reference: Schlocker, J. (1974) Geology of the San Francisco North quadrangle. USGS Professional Paper 782, 109 pp.: 62; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 203. |
| ⓘ Nontronite Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O Colour: Brown Description: Occurs as crumbly veins 2.5 to 3.0 cm thick in some serpentines. Reference: Schlocker, J. (1974) Geology of the San Francisco North quadrangle. USGS Professional Paper 782, 109 pp.: 63; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 441. |
| ⓘ Opal Formula: SiO2 · nH2O Colour: colorless Description: Thin layers of botryoidal colorless opal in crevices of serpentinites.
Reference: Schlocker, J. (1974) Geology of the San Francisco North quadrangle. USGS Professional Paper 782, 109 pp. |
| ⓘ 'Orthochrysotile' Reference: Schlocker, J. (1974) Geology of the San Francisco North quadrangle. USGS Professional Paper 782, 109 pp.: 58; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 424. |
| ⓘ Pectolite Formula: NaCa2Si3O8(OH) Description: Occurs as veins of fibrous material in an altered dike that intersects serpentine. Reference: Eakle, Arthur Starr (1901), Mineralogical notes; with chemical analyses by W.T. Schaller: University of California, Department of Geological Science Bulletin: 2: 316; Kunz, George Frederick (1905a), Gems, jewelers’ materials, and ornamental stones of California: California Division Mines Bulletin 37, 171 pp.: 96; Schaller, Waldemar Theodore (1911a), Mineralogical notes, series 1: USGS Bulletin 490: 103; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 410. |
| ⓘ Pyroaurite Formula: Mg6Fe3+2(OH)16[CO3] · 4H2O Localities: Description: A major constituent of the serpentinite here. Reference: Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 199. |
| ⓘ 'Pyroaurite-2H' Formula: Mg6Fe3+2(OH)16(CO3) · 4H2O Description: Occurws as thin coatings with hydromagnesite on fractures in serpentine. Reference: Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 340; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 199. |
| ⓘ Quartz Formula: SiO2 Localities: Divisadero Street, San Francisco, San Francisco Co., California, USA Fort Point, San Francisco, San Francisco Co., California, USA San Francisco, San Francisco Co., California, USA Lands End Station area, San Francisco, San Francisco Co., California, USA United States Mint site, Duboce Street near Market Street, San Francisco, San Francisco Co., California, USA Reference: Bradley, W.W. (1918), Quicksilver resources of California, with a section on metallurgy and ore dressing: California Mining Bureau. Bulletin 78, 389 pp.: 191. |
| ⓘ Quartz var. Chalcedony Formula: SiO2 Localities: Reference: www.missourigeologists.org/Min-Loc1-2005.pdf. |
| ⓘ Quartz var. Jasper Localities: Reference: www.missourigeologists.org/Min-Loc1-2005.pdf. |
| ⓘ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 Localities: Reference: Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 115, 390. |
| ⓘ Wollastonite Formula: Ca3(Si3O9) Reference: Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 387. |
| ⓘ Xonotlite Formula: Ca6(Si6O17)(OH)2 Localities: Reference: www.missourigeologists.org/Min-Loc1-2005.pdf. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| ⓘ | Mercury | 1.AD.05 | Hg |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Cinnabar | 2.CD.15a | HgS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Brucite | 4.FE.05 | Mg(OH)2 |
| ⓘ | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
| ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | var. Jasper | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Aragonite | 5.AB.15 | CaCO3 |
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Coalingite | 5.DA.55 | Mg10Fe3+2(OH)24[CO3] · 2H2O |
| ⓘ | Hydromagnesite | 5.DA.05 | Mg5(CO3)4(OH)2 · 4H2O |
| ⓘ | Magnesite | 5.AB.05 | MgCO3 |
| ⓘ | Nesquehonite | 5.CA.05 | MgCO3 · 3H2O |
| ⓘ | Pyroaurite | 5.DA.50 | Mg6Fe3+2(OH)16[CO3] · 4H2O |
| ⓘ | 'Pyroaurite-2H' | 5.DA.45 | Mg6Fe3+2(OH)16(CO3) · 4H2O |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Epsomite | 7.CB.40 | MgSO4 · 7H2O |
| ⓘ | Hexahydrite | 7.CB.25 | MgSO4 · 6H2O |
| Group 9 - Silicates | |||
| ⓘ | Antigorite | 9.ED.15 | Mg3(Si2O5)(OH)4 |
| ⓘ | 'Clinochrysotile' | 9.ED. | |
| ⓘ | Datolite | 9.AJ.20 | CaB(SiO4)(OH) |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| ⓘ | var. Diallage | 9.DA.15 | CaMgSi2O6 |
| ⓘ | Enstatite | 9.DA.05 | Mg2Si2O6 |
| ⓘ | Gyrolite | 9.EE.30 | NaCa16Si23AlO60(OH)8 · 14H2O |
| ⓘ | Lizardite | 9.ED.15 | Mg3(Si2O5)(OH)4 |
| ⓘ | Nontronite | 9.EC.40 | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| ⓘ | Pectolite | 9.DG.05 | NaCa2Si3O8(OH) |
| ⓘ | Wollastonite | 9.DG.05 | Ca3(Si3O9) |
| ⓘ | Xonotlite | 9.DG.35 | Ca6(Si6O17)(OH)2 |
| Group 10 - Organic Compounds | |||
| ⓘ | Idrialite | 10.BA.20 | C22H14 |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Apophyllite Group' | - | AB4[Si8O22]X · 8H2O |
| ⓘ | 'Fayalite-Forsterite Series' | - | |
| ⓘ | 'Orthochrysotile' | - | |
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Hydromagnesite | Mg5(CO3)4(OH)2 · 4H2O |
| H | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| H | ⓘ Datolite | CaB(SiO4)(OH) |
| H | ⓘ Gyrolite | NaCa16Si23AlO60(OH)8 · 14H2O |
| H | ⓘ Apophyllite Group | AB4[Si8O22]X · 8H2O |
| H | ⓘ Xonotlite | Ca6(Si6O17)(OH)2 |
| H | ⓘ Brucite | Mg(OH)2 |
| H | ⓘ Idrialite | C22H14 |
| H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| H | ⓘ Lizardite | Mg3(Si2O5)(OH)4 |
| H | ⓘ Epsomite | MgSO4 · 7H2O |
| H | ⓘ Hexahydrite | MgSO4 · 6H2O |
| H | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| H | ⓘ Pyroaurite | Mg6Fe23+(OH)16[CO3] · 4H2O |
| H | ⓘ Nesquehonite | MgCO3 · 3H2O |
| H | ⓘ Coalingite | Mg10Fe23+(OH)24[CO3] · 2H2O |
| H | ⓘ Pyroaurite-2H | Mg6Fe23+(OH)16(CO3) · 4H2O |
| H | ⓘ Pectolite | NaCa2Si3O8(OH) |
| H | ⓘ Opal | SiO2 · nH2O |
| B | Boron | |
| B | ⓘ Datolite | CaB(SiO4)(OH) |
| C | Carbon | |
| C | ⓘ Hydromagnesite | Mg5(CO3)4(OH)2 · 4H2O |
| C | ⓘ Aragonite | CaCO3 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Idrialite | C22H14 |
| C | ⓘ Magnesite | MgCO3 |
| C | ⓘ Pyroaurite | Mg6Fe23+(OH)16[CO3] · 4H2O |
| C | ⓘ Nesquehonite | MgCO3 · 3H2O |
| C | ⓘ Coalingite | Mg10Fe23+(OH)24[CO3] · 2H2O |
| C | ⓘ Pyroaurite-2H | Mg6Fe23+(OH)16(CO3) · 4H2O |
| O | Oxygen | |
| O | ⓘ Hydromagnesite | Mg5(CO3)4(OH)2 · 4H2O |
| O | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| O | ⓘ Datolite | CaB(SiO4)(OH) |
| O | ⓘ Gyrolite | NaCa16Si23AlO60(OH)8 · 14H2O |
| O | ⓘ Apophyllite Group | AB4[Si8O22]X · 8H2O |
| O | ⓘ Aragonite | CaCO3 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Xonotlite | Ca6(Si6O17)(OH)2 |
| O | ⓘ Brucite | Mg(OH)2 |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Chromite | Fe2+Cr23+O4 |
| O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| O | ⓘ Magnesite | MgCO3 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Enstatite | Mg2Si2O6 |
| O | ⓘ Diopside var. Diallage | CaMgSi2O6 |
| O | ⓘ Lizardite | Mg3(Si2O5)(OH)4 |
| O | ⓘ Epsomite | MgSO4 · 7H2O |
| O | ⓘ Hexahydrite | MgSO4 · 6H2O |
| O | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| O | ⓘ Pyroaurite | Mg6Fe23+(OH)16[CO3] · 4H2O |
| O | ⓘ Nesquehonite | MgCO3 · 3H2O |
| O | ⓘ Coalingite | Mg10Fe23+(OH)24[CO3] · 2H2O |
| O | ⓘ Wollastonite | Ca3(Si3O9) |
| O | ⓘ Pyroaurite-2H | Mg6Fe23+(OH)16(CO3) · 4H2O |
| O | ⓘ Pectolite | NaCa2Si3O8(OH) |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Opal | SiO2 · nH2O |
| Na | Sodium | |
| Na | ⓘ Gyrolite | NaCa16Si23AlO60(OH)8 · 14H2O |
| Na | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Na | ⓘ Pectolite | NaCa2Si3O8(OH) |
| Mg | Magnesium | |
| Mg | ⓘ Hydromagnesite | Mg5(CO3)4(OH)2 · 4H2O |
| Mg | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| Mg | ⓘ Brucite | Mg(OH)2 |
| Mg | ⓘ Magnesite | MgCO3 |
| Mg | ⓘ Enstatite | Mg2Si2O6 |
| Mg | ⓘ Diopside var. Diallage | CaMgSi2O6 |
| Mg | ⓘ Lizardite | Mg3(Si2O5)(OH)4 |
| Mg | ⓘ Epsomite | MgSO4 · 7H2O |
| Mg | ⓘ Hexahydrite | MgSO4 · 6H2O |
| Mg | ⓘ Pyroaurite | Mg6Fe23+(OH)16[CO3] · 4H2O |
| Mg | ⓘ Nesquehonite | MgCO3 · 3H2O |
| Mg | ⓘ Coalingite | Mg10Fe23+(OH)24[CO3] · 2H2O |
| Mg | ⓘ Pyroaurite-2H | Mg6Fe23+(OH)16(CO3) · 4H2O |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Al | Aluminium | |
| Al | ⓘ Gyrolite | NaCa16Si23AlO60(OH)8 · 14H2O |
| Al | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Si | Silicon | |
| Si | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| Si | ⓘ Datolite | CaB(SiO4)(OH) |
| Si | ⓘ Gyrolite | NaCa16Si23AlO60(OH)8 · 14H2O |
| Si | ⓘ Apophyllite Group | AB4[Si8O22]X · 8H2O |
| Si | ⓘ Xonotlite | Ca6(Si6O17)(OH)2 |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Enstatite | Mg2Si2O6 |
| Si | ⓘ Diopside var. Diallage | CaMgSi2O6 |
| Si | ⓘ Lizardite | Mg3(Si2O5)(OH)4 |
| Si | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Si | ⓘ Wollastonite | Ca3(Si3O9) |
| Si | ⓘ Pectolite | NaCa2Si3O8(OH) |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Opal | SiO2 · nH2O |
| S | Sulfur | |
| S | ⓘ Cinnabar | HgS |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Epsomite | MgSO4 · 7H2O |
| S | ⓘ Hexahydrite | MgSO4 · 6H2O |
| Ca | Calcium | |
| Ca | ⓘ Datolite | CaB(SiO4)(OH) |
| Ca | ⓘ Gyrolite | NaCa16Si23AlO60(OH)8 · 14H2O |
| Ca | ⓘ Aragonite | CaCO3 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Xonotlite | Ca6(Si6O17)(OH)2 |
| Ca | ⓘ Diopside var. Diallage | CaMgSi2O6 |
| Ca | ⓘ Wollastonite | Ca3(Si3O9) |
| Ca | ⓘ Pectolite | NaCa2Si3O8(OH) |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Cr | Chromium | |
| Cr | ⓘ Chromite | Fe2+Cr23+O4 |
| Fe | Iron | |
| Fe | ⓘ Chromite | Fe2+Cr23+O4 |
| Fe | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Fe | ⓘ Pyroaurite | Mg6Fe23+(OH)16[CO3] · 4H2O |
| Fe | ⓘ Coalingite | Mg10Fe23+(OH)24[CO3] · 2H2O |
| Fe | ⓘ Pyroaurite-2H | Mg6Fe23+(OH)16(CO3) · 4H2O |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
| Hg | Mercury | |
| Hg | ⓘ Cinnabar | HgS |
| Hg | ⓘ Mercury | Hg |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Blake, Wm. P. (1858), Report of a geological reconnaissance in California 370 pp., New York: 307.
Newberry, John Strong (1874), On the occurrence of chromic iron and serpentine in California: Lyceum Natural History New York Proceedings: 2(3): 66.
Palache, Charles (1894a), The Iherzolite serpentine and associated rocks of the Potrero, San Francisco: University of California, Department of Geological Sciences Bulletin: 1: 166.
Ransome, Frederick Leslie (1894), The geology of Angel Island, California: University of California, Department of Geol. Sci. Bulletin: 1: 193-234.
Lawson, Andrew Cowper (1895), Sketch of the geology of the San Francisco peninsula: USGS 15th. Ann. Report: 447.
Eakle, Arthur Starr (1901), Mineralogical notes; with chemical analyses by W.T. Schaller: University of California, Department of Geological Science Bulletin: 2: 316.
Kunz, George Frederick (1905a), Gems, jewelers’ materials, and ornamental stones of California: California Division Mines Bulletin 37, 171 pp.: 81.
Taliaferro, Nicholas Lloyd (1943b), Franciscan-Knoxville problem: American Association of Petroleum Geologists Bulletin 27: 154.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 307, 308, 336.
Schlocker, J. (1974) Geology of the San Francisco North quadrangle. USGS Professional Paper 782, 109 pp.: 58.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 386, 424.
Localities in this Region
- California
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Franciscan DomainDomain
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Lands End Station area, San Francisco, San Francisco Co., California, USA