Rockport Granite Company quarries, Rockport, Essex County, Massachusetts, USAi
| Regional Level Types | |
|---|---|
| Rockport Granite Company quarries | Group of Quarries |
| Rockport | Town |
| Essex County | County |
| Massachusetts | State |
| USA | Country |
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Latitude & Longitude (WGS84):
42° North , 70° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
Type:
Group of Quarries
Köppen climate type:
Mindat Locality ID:
32073
Long-form identifier:
mindat:1:2:32073:0
GUID (UUID V4):
64463c1d-7893-4522-9f94-560210315659
The Rockport Granite Company owned a number of quarries and was in business from 1865 to 1933. At its peak of operation, the company employed more than 800 men.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
Mineral list contains entries from the region specified including sub-localities16 valid minerals. 1 erroneous literature entry.
Detailed Mineral List:
| ⓘ Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 Description: Reported from pegmatite in alkalic granite. Likely a sodic amphibole or aegirine. |
| ⓘ 'Allanite Group' Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| ⓘ 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) |
| ⓘ Astrophyllite Formula: K2NaFe2+7Ti2Si8O26(OH)4F |
| ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 Localities: |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Danalite Formula: Be3Fe2+4(SiO4)3S |
| ⓘ Fayalite Formula: Fe2+2SiO4 |
| ⓘ 'Fergusonite' |
| ⓘ Fluorite Formula: CaF2 Localities: |
| ⓘ Fluorite var. Yttrocerite ? Formula: (Ca,Y,Ce)F2+x |
| ⓘ 'Gadolinite' ? Locality: Flat Ledge Quarry, Rockport Granite Company quarries, Rockport, Essex County, Massachusetts, USA Description: Unconfirmed. Collected 1920. ID based on resemblence to gadolinite from Texas, though a qualitative analysis is lacking (McKinstry, 1921: Minerals of Rockport, Mass; AmMin 6:59). |
| ⓘ Grunerite Formula: ◻{Fe2+2}{Fe2+5}(Si8O22)(OH)2 |
| ⓘ Hastingsite ? Formula: NaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2 |
| ⓘ Hedenbergite Formula: CaFe2+Si2O6 |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Ilmenite Formula: Fe2+TiO3 |
| ⓘ 'Limonite' |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 Localities: |
| ⓘ Microcline Formula: K(AlSi3O8) |
| ⓘ Molybdenite Formula: MoS2 |
| ⓘ Quartz Formula: SiO2 Localities: |
| ⓘ Quartz var. Blue Quartz Formula: SiO2 |
| ⓘ Quartz var. Smoky Quartz Formula: SiO2 |
| ⓘ Thorite Formula: Th(SiO4) |
| ⓘ Zircon Formula: Zr(SiO4) Localities: |
| ⓘ Zircon var. Cyrtolite Formula: Zr[(SiO4),(OH)4] |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| Group 3 - Halides | |||
| ⓘ | Fluorite var. Yttrocerite ? | 3.AB.25 | (Ca,Y,Ce)F2+x |
| ⓘ | 3.AB.25 | CaF2 | |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Quartz var. Smoky Quartz | 4.DA.05 | SiO2 |
| ⓘ | var. Blue Quartz | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 9 - Silicates | |||
| ⓘ | Fayalite | 9.AC.05 | Fe2+2SiO4 |
| ⓘ | Zircon var. Cyrtolite | 9.AD.30 | Zr[(SiO4),(OH)4] |
| ⓘ | 9.AD.30 | Zr(SiO4) | |
| ⓘ | Thorite | 9.AD.30 | Th(SiO4) |
| ⓘ | Hedenbergite | 9.DA.15 | CaFe2+Si2O6 |
| ⓘ | Astrophyllite | 9.DC.05 | K2NaFe2+7Ti2Si8O26(OH)4F |
| ⓘ | Grunerite | 9.DE.05 | ◻{Fe2+2}{Fe2+5}(Si8O22)(OH)2 |
| ⓘ | Actinolite ? | 9.DE.10 | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| ⓘ | Hastingsite ? | 9.DE.15 | NaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2 |
| ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Danalite | 9.FB.10 | Be3Fe2+4(SiO4)3S |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Gadolinite' ? | - | |
| ⓘ | 'Fergusonite' | - | |
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
| ⓘ | 'Allanite Group' | - | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| H | ⓘ Astrophyllite | K2NaFe72+Ti2Si8O26(OH)4F |
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘ Grunerite | ◻{Fe22+}{Fe52+}(Si8O22)(OH)2 |
| H | ⓘ Hastingsite | NaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2 |
| H | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| H | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| H | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| Be | Beryllium | |
| Be | ⓘ Danalite | Be3Fe42+(SiO4)3S |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| O | ⓘ Astrophyllite | K2NaFe72+Ti2Si8O26(OH)4F |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Danalite | Be3Fe42+(SiO4)3S |
| O | ⓘ Fayalite | Fe22+SiO4 |
| O | ⓘ Grunerite | ◻{Fe22+}{Fe52+}(Si8O22)(OH)2 |
| O | ⓘ Hastingsite | NaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2 |
| O | ⓘ Hedenbergite | CaFe2+Si2O6 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Quartz var. Smoky Quartz | SiO2 |
| O | ⓘ Thorite | Th(SiO4) |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| O | ⓘ Quartz var. Blue Quartz | SiO2 |
| O | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| O | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| F | Fluorine | |
| F | ⓘ Astrophyllite | K2NaFe72+Ti2Si8O26(OH)4F |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| F | ⓘ Fluorite | CaF2 |
| F | ⓘ Fluorite var. Yttrocerite | (Ca,Y,Ce)F2+x |
| F | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Na | Sodium | |
| Na | ⓘ Astrophyllite | K2NaFe72+Ti2Si8O26(OH)4F |
| Na | ⓘ Hastingsite | NaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2 |
| Mg | Magnesium | |
| Mg | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | Aluminium | |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘ Hastingsite | NaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2 |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Si | Silicon | |
| Si | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Si | ⓘ Astrophyllite | K2NaFe72+Ti2Si8O26(OH)4F |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘ Danalite | Be3Fe42+(SiO4)3S |
| Si | ⓘ Fayalite | Fe22+SiO4 |
| Si | ⓘ Grunerite | ◻{Fe22+}{Fe52+}(Si8O22)(OH)2 |
| Si | ⓘ Hastingsite | NaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2 |
| Si | ⓘ Hedenbergite | CaFe2+Si2O6 |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Quartz var. Smoky Quartz | SiO2 |
| Si | ⓘ Thorite | Th(SiO4) |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| Si | ⓘ Quartz var. Blue Quartz | SiO2 |
| Si | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| P | Phosphorus | |
| P | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| S | Sulfur | |
| S | ⓘ Danalite | Be3Fe42+(SiO4)3S |
| S | ⓘ Molybdenite | MoS2 |
| Cl | Chlorine | |
| Cl | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| K | Potassium | |
| K | ⓘ Astrophyllite | K2NaFe72+Ti2Si8O26(OH)4F |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | ⓘ Microcline | K(AlSi3O8) |
| Ca | Calcium | |
| Ca | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Hastingsite | NaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2 |
| Ca | ⓘ Hedenbergite | CaFe2+Si2O6 |
| Ca | ⓘ Fluorite var. Yttrocerite | (Ca,Y,Ce)F2+x |
| Ca | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Ti | Titanium | |
| Ti | ⓘ Astrophyllite | K2NaFe72+Ti2Si8O26(OH)4F |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | Iron | |
| Fe | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Fe | ⓘ Astrophyllite | K2NaFe72+Ti2Si8O26(OH)4F |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Danalite | Be3Fe42+(SiO4)3S |
| Fe | ⓘ Fayalite | Fe22+SiO4 |
| Fe | ⓘ Grunerite | ◻{Fe22+}{Fe52+}(Si8O22)(OH)2 |
| Fe | ⓘ Hastingsite | NaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2 |
| Fe | ⓘ Hedenbergite | CaFe2+Si2O6 |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Y | Yttrium | |
| Y | ⓘ Fluorite var. Yttrocerite | (Ca,Y,Ce)F2+x |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Zr | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
| Ce | Cerium | |
| Ce | ⓘ Fluorite var. Yttrocerite | (Ca,Y,Ce)F2+x |
| Th | Thorium | |
| Th | ⓘ Thorite | Th(SiO4) |
Localities in this Region
- Massachusetts
- Essex County
- Rockport
- Rockport Granite Company quarries
- Rockport
- Essex County
Other Regions, Features and Areas containing this locality
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References
