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Frost Quarry, Davis, Howard County, Maryland, USAi
Regional Level Types
Frost QuarryQuarry (Overgrown)
Davis- not defined -
Howard CountyCounty
MarylandState
USACountry

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Latitude & Longitude (WGS84):
39° 18' 50'' North , 76° 51' 26'' West
Latitude & Longitude (decimal):
39.31399,-76.85731
GeoHash:
G#: dqcrehfhw
GRN:
N27W43
Type:
Quarry (Overgrown) - last checked 2021
KΓΆppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Ellicott City65,834 (2011)7.3km
Randallstown32,430 (2011)8.0km
Columbia99,615 (2011)8.3km
Milford Mill29,042 (2011)8.4km
Ilchester23,476 (2011)10.6km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Central Maryland Rock and Mineral Collectors ExchangeElkridge, Maryland17km
Baltimore Mineral SocietyBaltimore, Maryland21km
Chesapeake Gem & Mineral SocietyBaltimore, Maryland21km
Gem Cutters Guild of Baltimore, Inc.Baltimore, Maryland21km
Gem, Lapidary, and Mineral Society of Montgomery County, MD., Inc.Rockville, Maryland36km
Mindat Locality ID:
28467
Long-form identifier:
mindat:1:2:28467:8
GUID (UUID V4):
3c893030-5884-4915-9abc-3c18728760f9
Other/historical names associated with this locality:
Frost Feldspar Quarry; Fanny Frost Quarry


The quarry was about 150 meters long, 30 meters wide, and 10 meters deep and was operated in the early part of the twentieth century for feldspar. The opening is on the western flank of the Woodstock gneiss dome, where the pegmatite has intruded the Cockeysville Marble.

The quarry is unusual for its high amount of Mg, Ti, and Fe. Diopside can be found as large crystals up to a meter long, along with titanite and beryl (aquamarine).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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


Mineral List


19 valid minerals. 1 erroneous literature entry.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ Actinolite ?
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
β“˜ Albite
Formula: Na(AlSi3O8)
β“˜ 'Allanite Group' ?
Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
β“˜ Beryl
Formula: Be3Al2(Si6O18)
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜ Clinozoisite
Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
β“˜ Diopside
Formula: CaMgSi2O6
β“˜ Dolomite ?
Formula: CaMg(CO3)2
β“˜ Epidote ?
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜ Ferro-hornblende
Formula: ◻Ca2(Fe2+4Al)(Si7Al)O22(OH)2
β“˜ Fluorapatite
Formula: Ca5(PO4)3F
β“˜ 'Garnet Group'
Formula: X3Z2(SiO4)3
β“˜ Grossular
Formula: Ca3Al2(SiO4)3
β“˜ 'Hornblende Root Name Group' ?
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
β“˜ 'Limonite'
β“˜ Microcline
Formula: K(AlSi3O8)
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Orthoclase ?
Formula: K(AlSi3O8)
β“˜ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
β“˜ Pyrite ?
Formula: FeS2
β“˜ Pyrope
Formula: Mg3Al2(SiO4)3
Description: Pyrope is not found in granite pegmatites of low pressure regimes. This species is restricted to ultrabasic rocks and high pressure metamorphic environments.
β“˜ Pyrrhotite
Formula: Fe1-xS
β“˜ Quartz
Formula: SiO2
β“˜ Titanite
Formula: CaTi(SiO4)O
β“˜ Vesuvianite ?
Formula: Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9

Gallery:

CaMgSi2O6β“˜ Diopside

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
β“˜Pyrrhotite2.CC.10Fe1-xS
β“˜Pyrite ?2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
β“˜Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
β“˜Dolomite ?5.AB.10CaMg(CO3)2
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Fluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
β“˜Pyrope ?9.AD.25Mg3Al2(SiO4)3
β“˜Grossular9.AD.25Ca3Al2(SiO4)3
β“˜Titanite9.AG.15CaTi(SiO4)O
β“˜Clinozoisite9.BG.05a(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
β“˜Epidote ?9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜Vesuvianite ?9.BG.35Ca19Fe3+Al4(Al6Mg2)(β—»4)β—»[Si2O7]4[(SiO4)10]O(OH)9
β“˜Beryl9.CJ.05Be3Al2(Si6O18)
β“˜Diopside9.DA.15CaMgSi2O6
β“˜Actinolite ?9.DE.10β—»Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
β“˜Ferro-hornblende9.DE.10β—»Ca2(Fe2+4Al)(Si7Al)O22(OH)2
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
β“˜Microcline9.FA.30K(AlSi3O8)
β“˜Orthoclase ?9.FA.30K(AlSi3O8)
β“˜Albite9.FA.35Na(AlSi3O8)
Unclassified
β“˜'Limonite'-
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜'Hornblende Root Name Group' ?-β—»Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
β“˜'Garnet Group'-X3Z2(SiO4)3
β“˜'Allanite Group' ?-(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)

List of minerals for each chemical element

HHydrogen
Hβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Hβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hβ“˜ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Hβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Hβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Hβ“˜ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
BeBeryllium
Beβ“˜ BerylBe3Al2(Si6O18)
CCarbon
Cβ“˜ DolomiteCaMg(CO3)2
OOxygen
Oβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oβ“˜ AlbiteNa(AlSi3O8)
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ BerylBe3Al2(Si6O18)
Oβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Oβ“˜ DiopsideCaMgSi2O6
Oβ“˜ DolomiteCaMg(CO3)2
Oβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oβ“˜ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Oβ“˜ FluorapatiteCa5(PO4)3F
Oβ“˜ GrossularCa3Al2(SiO4)3
Oβ“˜ MicroclineK(AlSi3O8)
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ OrthoclaseK(AlSi3O8)
Oβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Oβ“˜ PyropeMg3Al2(SiO4)3
Oβ“˜ QuartzSiO2
Oβ“˜ TitaniteCaTi(SiO4)O
Oβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Oβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oβ“˜ Garnet GroupX3Z2(SiO4)3
Oβ“˜ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
FFluorine
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fβ“˜ FluorapatiteCa5(PO4)3F
Fβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
NaSodium
Naβ“˜ AlbiteNa(AlSi3O8)
MgMagnesium
Mgβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgβ“˜ DiopsideCaMgSi2O6
Mgβ“˜ DolomiteCaMg(CO3)2
Mgβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgβ“˜ PyropeMg3Al2(SiO4)3
Mgβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
AlAluminium
Alβ“˜ AlbiteNa(AlSi3O8)
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ BerylBe3Al2(Si6O18)
Alβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Alβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alβ“˜ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Alβ“˜ GrossularCa3Al2(SiO4)3
Alβ“˜ MicroclineK(AlSi3O8)
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ OrthoclaseK(AlSi3O8)
Alβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Alβ“˜ PyropeMg3Al2(SiO4)3
Alβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Alβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
SiSilicon
Siβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siβ“˜ AlbiteNa(AlSi3O8)
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ BerylBe3Al2(Si6O18)
Siβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Siβ“˜ DiopsideCaMgSi2O6
Siβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siβ“˜ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Siβ“˜ GrossularCa3Al2(SiO4)3
Siβ“˜ MicroclineK(AlSi3O8)
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ OrthoclaseK(AlSi3O8)
Siβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Siβ“˜ PyropeMg3Al2(SiO4)3
Siβ“˜ QuartzSiO2
Siβ“˜ TitaniteCaTi(SiO4)O
Siβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Siβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siβ“˜ Garnet GroupX3Z2(SiO4)3
Siβ“˜ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
PPhosphorus
Pβ“˜ FluorapatiteCa5(PO4)3F
SSulfur
Sβ“˜ PyriteFeS2
Sβ“˜ PyrrhotiteFe1-xS
ClChlorine
Clβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kβ“˜ MicroclineK(AlSi3O8)
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Kβ“˜ OrthoclaseK(AlSi3O8)
Kβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Caβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Caβ“˜ DiopsideCaMgSi2O6
Caβ“˜ DolomiteCaMg(CO3)2
Caβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caβ“˜ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Caβ“˜ FluorapatiteCa5(PO4)3F
Caβ“˜ GrossularCa3Al2(SiO4)3
Caβ“˜ TitaniteCaTi(SiO4)O
Caβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Caβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
TiTitanium
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiβ“˜ TitaniteCaTi(SiO4)O
FeIron
Feβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feβ“˜ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Feβ“˜ PyriteFeS2
Feβ“˜ PyrrhotiteFe1-xS
Feβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9

Other Databases

Link to USGS MRDS:10194106

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.

References

(n.d.)
Ostrander, C.W., Price, W.E.Jnr. (1940) Minerals of Maryland: Natural History Society of Maryland, 92 pages.
Bernstein, Lawrence (1980) Minerals of the Washington D.C. area: Maryland Geological Survey, Educational Series 5, 148 pages.
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