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Lord Baltimore Drive Quartz occurrence area, Windsor Mill, Baltimore Co., Maryland, USAi
Regional Level Types
Lord Baltimore Drive Quartz occurrence areaOccurrence (Built Over)
Windsor MillCommunity
Baltimore Co.County
MarylandState
USACountry

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Key
Latitude & Longitude (WGS84):
39° 19' 49'' North , 76° 45' 15'' West
Latitude & Longitude (decimal):
Locality type:
Occurrence (Built Over) - last checked 2020
Deposit first discovered:
1955 (approx.)
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Milford Mill29,042 (2011)2.4km
Woodlawn37,879 (2011)2.4km
Lochearn25,333 (2011)3.0km
Randallstown32,430 (2011)5.4km
Pikesville30,764 (2011)5.6km


Boulders of ultramafic rock (serpentine) and silica-based rock that were moved onto a vacant overgrown lot from surrounding excavations and commercial development. The site is currently under construction for a drive-thru storage facility.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


11 valid minerals.

Detailed Mineral List:

Anthophyllite
Formula: ☐{Mg2}{Mg5}(Si8O22)(OH)2
Reference: Jat Thompson Collection
'Chlorite Group'
Reference: Jat Thompson Collection
Chromite
Formula: Fe2+Cr3+2O4
Reference: Jat Thompson Collection
Chrysotile
Formula: Mg3(Si2O5)(OH)4
Reference: Jat Thompson Collection
Enstatite
Formula: Mg2Si2O6
Reference: Jat Thompson Collection
Enstatite var: Bronzite
Formula: (Mg,Fe2+)2[SiO3]2
Reference: Jat Thompson Collection
Goethite
Formula: α-Fe3+O(OH)
Reference: Jat Thompson
Hematite
Formula: Fe2O3
Reference: Jat Thompson
Hematite var: Specularite
Formula: Fe2O3
Reference: Jat Thompson Collection
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Jat Thompson
Magnesite
Formula: MgCO3
Reference: Jat Thompson Collection
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Jat Thompson Collection
Opal
Formula: SiO2 · nH2O
Reference: Jat Thompson
Opal var: Amber Opal
Formula: SiO2 · nH2O
Reference: Jat Thompson Collection
Opal var: Common Opal
Formula: SiO2 · nH2O
Reference: Jat Thompson Collection
Opal var: Hyalite
Formula: SiO2 · nH2O
Reference: Jat Thompson
Opal var: Jelly Opal
Formula: SiO2 · nH2O
Reference: Jat Thompson Collection
Quartz
Formula: SiO2
Reference: Jat Thompson
Quartz var: Carnelian
Reference: Jat Thompson Collection
Quartz var: Chalcedony
Formula: SiO2
Reference: Jat Thompson
Quartz var: Jasper
Reference: Jat Thompson Collection
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Reference: Jat Thompson Collection
Talc
Formula: Mg3Si4O10(OH)2
Reference: Jat Thompson Collection

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
var: Specularite4.CB.05Fe2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Opal4.DA.10SiO2 · nH2O
var: Amber Opal4.DA.10SiO2 · nH2O
var: Common Opal4.DA.10SiO2 · nH2O
var: Hyalite4.DA.10SiO2 · nH2O
var: Jelly Opal4.DA.10SiO2 · nH2O
Quartz4.DA.05SiO2
var: Carnelian4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Jasper4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Magnesite5.AB.05MgCO3
Group 9 - Silicates
Anthophyllite9.DD.05☐{Mg2}{Mg5}(Si8O22)(OH)2
Chrysotile9.ED.15Mg3(Si2O5)(OH)4
Enstatite9.DA.05Mg2Si2O6
var: Bronzite9.DA.05(Mg,Fe2+)2[SiO3]2
Talc9.EC.05Mg3Si4O10(OH)2
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'Limonite'-(Fe,O,OH,H2O)
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Magnesite14.1.1.2MgCO3
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Enstatite65.1.2.1Mg2Si2O6
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Anthophyllite66.1.2.1☐{Mg2}{Mg5}(Si8O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Chrysotile71.1.5.1Mg3(Si2O5)(OH)4
Sheets of 6-membered rings with 2:1 layers
Talc71.2.1.3Mg3Si4O10(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-
Enstatite
var: Bronzite
-(Mg,Fe2+)2[SiO3]2
Hematite
var: Specularite
-Fe2O3
'Limonite'-(Fe,O,OH,H2O)
Opal
var: Amber Opal
-SiO2 · nH2O
var: Common Opal-SiO2 · nH2O
var: Hyalite-SiO2 · nH2O
var: Jelly Opal-SiO2 · nH2O
Quartz
var: Carnelian
-SiO2
var: Chalcedony-SiO2
var: Jasper-SiO2
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

List of minerals for each chemical element

HHydrogen
H Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
H ChrysotileMg3(Si2O5)(OH)4
H Goethiteα-Fe3+O(OH)
H Limonite(Fe,O,OH,H2O)
H Opal (var: Hyalite)SiO2 · nH2O
H OpalSiO2 · nH2O
H Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
H Opal (var: Amber Opal)SiO2 · nH2O
H Opal (var: Common Opal)SiO2 · nH2O
H Opal (var: Jelly Opal)SiO2 · nH2O
H TalcMg3Si4O10(OH)2
CCarbon
C MagnesiteMgCO3
OOxygen
O Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
O ChromiteFe2+Cr23+O4
O ChrysotileMg3(Si2O5)(OH)4
O QuartzSiO2
O Quartz (var: Chalcedony)SiO2
O Goethiteα-Fe3+O(OH)
O Limonite(Fe,O,OH,H2O)
O HematiteFe2O3
O Opal (var: Hyalite)SiO2 · nH2O
O OpalSiO2 · nH2O
O MagnetiteFe2+Fe23+O4
O MagnesiteMgCO3
O Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
O Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
O EnstatiteMg2Si2O6
O Opal (var: Amber Opal)SiO2 · nH2O
O Opal (var: Common Opal)SiO2 · nH2O
O Opal (var: Jelly Opal)SiO2 · nH2O
O TalcMg3Si4O10(OH)2
O Hematite (var: Specularite)Fe2O3
MgMagnesium
Mg Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Mg ChrysotileMg3(Si2O5)(OH)4
Mg MagnesiteMgCO3
Mg Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
Mg Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
Mg EnstatiteMg2Si2O6
Mg TalcMg3Si4O10(OH)2
AlAluminium
Al Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
SiSilicon
Si Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Si ChrysotileMg3(Si2O5)(OH)4
Si QuartzSiO2
Si Quartz (var: Chalcedony)SiO2
Si Opal (var: Hyalite)SiO2 · nH2O
Si OpalSiO2 · nH2O
Si Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
Si Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
Si EnstatiteMg2Si2O6
Si Opal (var: Amber Opal)SiO2 · nH2O
Si Opal (var: Common Opal)SiO2 · nH2O
Si Opal (var: Jelly Opal)SiO2 · nH2O
Si TalcMg3Si4O10(OH)2
CrChromium
Cr ChromiteFe2+Cr23+O4
MnManganese
Mn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Fe ChromiteFe2+Cr23+O4
Fe Goethiteα-Fe3+O(OH)
Fe Limonite(Fe,O,OH,H2O)
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
Fe Hematite (var: Specularite)Fe2O3
NiNickel
Ni Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
ZnZinc
Zn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
 
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