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Clermont Mills, Harford Co., Maryland, USAi
Regional Level Types
Clermont Mills- not defined -
Harford Co.County
MarylandState
USACountry

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Latitude & Longitude (WGS84):
39° 40' 2'' North , 76° 25' 55'' West
Latitude & Longitude (decimal):
KΓΆppen climate type:
Nearest Settlements:
PlacePopulationDistance
Pylesville693 (2011)5.6km
Fawn Grove456 (2017)6.9km
Jarrettsville2,916 (2011)8.0km
Delta724 (2017)11.2km
Susquehanna Trails2,264 (2017)11.5km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Baltimore Mineral SocietyBaltimore, Maryland45km
Chesapeake Gem & Mineral SocietyBaltimore, Maryland45km
Gem Cutters Guild of Baltimore, Inc.Baltimore, Maryland45km
Mason-Dixon Rock, Mineral, Gemological, & Lapidary ClubHanover, Pennsylvania49km


An historical locale.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity 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-localities

8 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 Diagram

Detailed Mineral List:

β“˜ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Reference: Pearre, N. & A. V. Heyl (1960) Mineral deposits in serpentine rocks of the Piedmont Upland, Maryland, Pennsylvania and Delaware: U. S. Geological Survey: Bulletin 1082K: 707-833.
β“˜ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Reference: W. Harold Tomlinson (1946) Rutile in Harford County, Maryland. American Mineralogist, 31, 322-325.
β“˜ 'Chlorite Group'
β“˜ Dolomite
Formula: CaMg(CO3)2
Reference: Pearre, N. & A. V. Heyl (1960) Mineral deposits in serpentine rocks of the Piedmont Upland, Maryland, Pennsylvania and Delaware: U. S. Geological Survey: Bulletin 1082K: 707-833.
β“˜ Ilmenite
Formula: Fe2+TiO3
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
β“˜ 'Limonite'
Reference: Pearre, N. & A. V. Heyl (1960) Mineral deposits in serpentine rocks of the Piedmont Upland, Maryland, Pennsylvania and Delaware: U. S. Geological Survey: Bulletin 1082K: 707-833.
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
β“˜ Pyrite
Formula: FeS2
Reference: W. Harold Tomlinson (1946) Rutile in Harford County, Maryland. American Mineralogist, 31, 322-325.
β“˜ Rutile
Formula: TiO2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
β“˜ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
Reference: Pearre, N. & A. V. Heyl (1960) Mineral deposits in serpentine rocks of the Piedmont Upland, Maryland, Pennsylvania and Delaware: U. S. Geological Survey: Bulletin 1082K: 707-833.
β“˜ Talc
Formula: Mg3Si4O10(OH)2
Reference: W. Harold Tomlinson (1946) Rutile in Harford County, Maryland. American Mineralogist, 31, 322-325.
β“˜ Zircon
Formula: Zr(SiO4)
Reference: W. Harold Tomlinson (1946) Rutile in Harford County, Maryland. American Mineralogist, 31, 322-325.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
β“˜Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
β“˜Ilmenite4.CB.05Fe2+TiO3
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
β“˜Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
β“˜Dolomite5.AB.10CaMg(CO3)2
Group 9 - Silicates
β“˜Talc9.EC.05Mg3Si4O10(OH)2
β“˜Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
β“˜'Apatite'-Ca5(PO4)3(Cl/F/OH)
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
β“˜'Chlorite Group'-
β“˜'Limonite'-
β“˜'Serpentine Subgroup'-D3[Si2O5](OH)4

List of minerals for each chemical element

HHydrogen
Hβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Hβ“˜ TalcMg3Si4O10(OH)2
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Hβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
CCarbon
Cβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Cβ“˜ DolomiteCaMg(CO3)2
OOxygen
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ RutileTiO2
Oβ“˜ IlmeniteFe2+TiO3
Oβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Oβ“˜ TalcMg3Si4O10(OH)2
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Oβ“˜ ZirconZr(SiO4)
Oβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Oβ“˜ DolomiteCaMg(CO3)2
Oβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
FFluorine
Fβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
MgMagnesium
Mgβ“˜ TalcMg3Si4O10(OH)2
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Mgβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgβ“˜ DolomiteCaMg(CO3)2
AlAluminium
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
SiSilicon
Siβ“˜ TalcMg3Si4O10(OH)2
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Siβ“˜ ZirconZr(SiO4)
Siβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
PPhosphorus
Pβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sβ“˜ PyriteFeS2
ClChlorine
Clβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
CaCalcium
Caβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Caβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Caβ“˜ DolomiteCaMg(CO3)2
TiTitanium
Tiβ“˜ RutileTiO2
Tiβ“˜ IlmeniteFe2+TiO3
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
FeIron
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ IlmeniteFe2+TiO3
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Feβ“˜ PyriteFeS2
Feβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
ZrZirconium
Zrβ“˜ ZirconZr(SiO4)

Localities in this Region

Other Regions, Features and Areas containing this locality


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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