Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

Important Update News

The RRUFF Project is being updated to improve its interface and content. The beta version of the update is accessible to the public at RRUFF.net. New data is only being added to the beta site. Please note that it is in development, and some components are not functional. Existing RRUFF.info links will resolve to the new site after RRUFF.net is officially released.

We are grateful to NASA for the funding of this effort.

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Montgomery Co., Pennsylvania, USA

mindat Locality ID: 22913
mindat URL: http://www.mindat.org/loc-22913.html

Tectonic Settings:

Total number of sublocalities beneath "Montgomery Co., Pennsylvania, USA": 46
Total number of bottom-level sublocalities: 25

Number of Child Localities: 13
Child Localities:
Franconia Township
Lower Merion Township
Lower Pottsgrove Township
Lower Providence Township
Lower Salford Township
Marlborough Township
Springfield Township
Upper Gwynedd Township
Upper Merion Township
Upper Moreland Township
Upper Providence Township
Upper Salford Township
Whitemarsh Township

Latitude: 40°10'55"N
Longitude: 75°21'38"W
Decimal Degree (lat, lon): 40.181944444444,-75.360555555556

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Allophane	Amphibole	Andalusite	Apatite	Aragonite	Arsenopyrite	Axinite	Baryte	Beryl	Brochantite
Calcite	Chabazite	Chalcanthite	Chalcopyrite	Chlorite	Clay	Clinozoisite	Cobaltite	Copper	Corrensite
Corundum	Covellite	Devilline	Diaspore	Epidote	Epsomite	Feldspar	Fluorite	Gadolinite	Garnet
Halotrichite	Heulandite	Löllingite	Lepidocrocite	Linarite	Malachite	Marcasite	Mica	Millerite	Monazite
Natrolite	None	Not in a structural group	Prehnite	Pyrite	Pyroxene	Quartz	Rocksalt	Rutile	Scapolite
Scheelite	Smectite-vermiculite	Sphalerite	Spinel	Stilbite	Sulphur	Talc	Titanite	Tourmaline	Vivianite
Wurtzite	Zircon

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Ag Al As Au B Ba Be C Ca Cd Ce Cl Co Cu F Fe H K Mg Mn Mo Na Ni O P Pb S Si Ti Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allophane Amphibole Andalusite Apatite Aragonite Arsenopyrite Axinite Baryte Beryl Brochantite
Calcite Chabazite Chalcanthite Chalcopyrite Chlorite Clay Clinozoisite Cobaltite Copper Corrensite
Corundum Covellite Devilline Diaspore Epidote Epsomite Feldspar Fluorite Gadolinite Garnet
Halotrichite Heulandite Löllingite Lepidocrocite Linarite Malachite Marcasite Mica Millerite Monazite
Natrolite None Not in a structural group Prehnite Pyrite Pyroxene Quartz Rocksalt Rutile Scapolite
Scheelite Smectite-vermiculite Sphalerite Spinel Stilbite Sulphur Talc Titanite Tourmaline Vivianite
Wurtzite Zircon

90 IMA Minerals at location:

Actinolite ()*	Albite ()*	Alloclasite ()*	Almandine ()*	Andradite ()*
Anglesite ()*	Ankerite ()*	Aragonite ()*	Arsenopyrite ()*	Axinite-(Fe) ()*
Azurite ()*	Baryte ()*	Beryl ()*	Bornite ()*	Brochantite ()*
Calcite ()*	Cerussite ()*	Chabazite-Ca ()*	Chalcanthite ()*	Chalcocite ()*
Chalcopyrite ()*	Chrysocolla ()*	Clinochlore ()*	Cobaltite ()*	Copper ()*
Corrensite ()*	Covellite ()*	Cuprite ()*	Datolite ()*	Devilline ()*
Diopside ()*	Dolomite ()*	Enstatite ()*	Epidote ()*	Epsomite ()*
Erythrite ()*	Fluorite ()*	Galena ()*	Glaucodot ()*	Goethite ()*
Gold ()*	Graphite ()*	Greenockite ()*	Halotrichite ()*	Hematite ()*
Hemimorphite ()*	Heulandite-Ca ()*	Hydrozincite ()*	Ilmenite ()*	Langite ()*
Lepidocrocite ()*	Libethenite ()*	Linarite ()*	Magnetite ()*	Malachite ()*
Marcasite ()*	Marialite ()*	Microcline ()*	Millerite ()*	Mimetite ()*
Monazite-(Ce) ()*	Montmorillonite ()*	Muscovite ()*	Natrolite ()*	Orthoclase ()*
Posnjakite ()*	Prehnite ()*	Pseudomalachite ()*	Pyrite ()*	Pyrolusite ()*
Pyromorphite ()*	Quartz ()*	Ramsbeckite ()*	Romanèchite ()*	Schorl ()*
Serpierite ()*	Silver ()*	Smithsonite ()*	Sphalerite ()*	Stellerite ()*
Stilbite-Ca ()*	Stilbite-Na ()*	Sulphur ()*	Susannite ()*	Talc ()*
Tenorite ()*	Titanite ()*	Tremolite ()*	Wulfenite ()*	Zircon ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	1	263148	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	3	263129,263148,263172	8803
Alloclasite ()*	Löllingite	CoAsS	1	263148	56
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	2	263129,263172	2353
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	1	263148	1534
Anglesite ()*	Baryte	Pb(SO₄)	3	263140,263141,263142	2734
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	2	263140,263141	3092
Aragonite ()*	Aragonite	Ca(CO₃)	3	263132,263148,263159	3250
Arsenopyrite ()*	Arsenopyrite	FeAsS	2	263141,263148	9052
Axinite-(Fe) ()*	Axinite	Ca₄Fe²⁺₂Al₄[B₂Si₈O₃₀](OH)₂	1	263148	260
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	4	263140,263141,263142,263148	5509
Baryte ()*	Baryte	Ba(SO₄)	5	263137,263140,263141,263142,263171	11547
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	1	263129	4286
Bornite ()*	None	Cu₅FeS₄	4	263132,263137,263141,263142	5516
Brochantite ()*	Brochantite	Cu₄(SO₄)(OH)₆	1	263141	1633
Calcite ()*	Calcite	Ca(CO₃)	10	263129,263145,263148,263155,263156,263157,263159,263164,263170,263171	27770
Cerussite ()*	Aragonite	Pb(CO₃)	4	263140,263141,263142,263143	4979
Chabazite-Ca ()*	Chabazite	Ca₂[Al₄Si₈O₂₄]·13H₂O	1	263129	310
Chalcanthite ()*	Chalcanthite	Cu(SO₄)·5H₂O	1	263132	925
Chalcocite ()*	None	Cu₂S	2	263137,263141	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	6	263137,263140,263141,263143,263148,263171	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	6	263137,263140,263141,263142,263148,263171	3531
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	1	263148	1756
Cobaltite ()*	Cobaltite	CoAsS	1	263148	966
Copper ()*	Copper	Cu	3	263141,263143,263148	3846
Corrensite ()*	Corrensite Clay	(Ca,Na,K)_1-x(Mg,Fe,Al)₉(Si,Al)₈O₂₀(OH)₁₀·nH₂O	1	263148	49
Covellite ()*	Covellite	CuS	2	263140,263141	4165
Cuprite ()*	Not in a structural group	Cu₂O	4	263140,263141,263142,263143	2970
Datolite ()*	Gadolinite	CaB(SiO₄)(OH)	1	263148	498
Devilline ()*	Devilline	CaCu₄(SO₄)₂(OH)₆·3H₂O	1	263141	366
Diopside ()*	Pyroxene	CaMgSi₂O₆	1	263148	4135
Dolomite ()*	None	CaMg(CO₃)₂	7	263132,263141,263143,263156,263157,263170,263171	9895
Enstatite ()*	Pyroxene	Mg₂Si₂O₆	1	263132	944
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1	263148	8173
Epsomite ()*	Epsomite	Mg(SO₄)·7H₂O	1	263132	484
Erythrite ()*	Vivianite	Co₃(AsO₄)₂·8H₂O	1	263148	814
Fluorite ()*	Fluorite	CaF₂	3	263141,263148,263171	9617
Galena ()*	Rocksalt	PbS	4	263140,263141,263142,263143	24243
Glaucodot ()*	Arsenopyrite	(Co_0.5Fe_0.5)AsS	1	263148	131
Goethite ()*	Diaspore	FeO(OH)	7	263141,263143,263150,263154,263155,263156,263169	7437
Gold ()*	Copper	Au	1	263127	30554
Graphite ()*	None	C	6	263156,263157,263159,263169,263171,263172	2812
Greenockite ()*	Wurtzite	CdS	1	263141	717
Halotrichite ()*	Halotrichite	Fe²⁺Al₂(SO₄)₄·22H₂O	1	263135	409
Hematite ()*	Corundum	Fe₂O₃	3	263141,263156,263169	14640
Hemimorphite ()*	Not in a structural group	Zn₄(Si₂O₇)(OH)₂·H₂O	2	263140,263141	1689
Heulandite-Ca ()*	Heulandite	(Ca,Na,K)₅(Si₂₇Al₉)O₇₂·26H₂O	1	263129	246
Hydrozincite ()*	None	Zn₅(CO₃)₂(OH)₆	1	263141	1066
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	1	263129	5433
Langite ()*	None	Cu₄(SO₄)(OH)₆·2H₂O	1	263141	593
Lepidocrocite ()*	Lepidocrocite	Fe³⁺O(OH)	2	263150,263169	581
Libethenite ()*	Andalusite	Cu₂(PO₄)(OH)	1	263140	234
Linarite ()*	Linarite	CuPb(SO₄)(OH)₂	4	263140,263141,263142,263143	987
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	263148	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	9	263137,263140,263141,263142,263143,263148,263154,263164,263171	12537
Marcasite ()*	Marcasite	FeS₂	1	263141	5674
Marialite ()*	Scapolite	Na₄Al₃Si₉O₂₄Cl	1	263148	139
Microcline ()*	Feldspar	K(AlSi₃O₈)	2	263129,263172	4924
Millerite ()*	Millerite	NiS	1	263132	1066
Mimetite ()*	Apatite	Pb₅(AsO₄)₃Cl	1	263141	1107
Monazite-(Ce) ()*	Monazite	Ce(PO₄)	1	263137	945
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	1	263148	1508
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	2	263129,263157	17380
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	1	263148	1236
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	1	263148	2349
Posnjakite ()*	None	Cu₄(SO₄)(OH)₆·H₂O	1	263141	309
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	1	263148	1898
Pseudomalachite ()*	None	Cu₅(PO₄)₂(OH)₄	4	263140,263141,263142,263143	369
Pyrite ()*	Pyrite	FeS₂	5	263141,263148,263152,263157,263171	39462
Pyrolusite ()*	Rutile	MnO₂	2	263150,263169	3106
Pyromorphite ()*	Apatite	Pb₅(PO₄)₃Cl	4	263140,263141,263142,263143	1725
Quartz ()*	Quartz	SiO₂	15	263141,263142,263143,263145,263148,263150,263154,263155,263156,263157,263159,263162,263164,263169,263171	61156
Ramsbeckite ()*	None	Cu₁₅(SO₄)₄(OH)₂₂·6H₂O	1	263141	68
Romanèchite ()*	None	(Ba,H₂O)₂(Mn⁴⁺,Mn³⁺)₅O₁₀	1	263150	312
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	2	263135,263162	2705
Serpierite ()*	Devilline	Ca(Cu,Zn)₄(SO₄)₂(OH)₆·3H₂O	1	263141	292
Silver ()*	Copper	Ag	1	263143	5186
Smithsonite ()*	Calcite	Zn(CO₃)	2	263141,263142	2473
Sphalerite ()*	Sphalerite	ZnS	5	263140,263141,263142,263143,263148	21482
Stellerite ()*	Stilbite	Ca₄(Si₂₈Al₈)O₇₂·28H₂O	1	263148	189
Stilbite-Ca ()*	Stilbite	NaCa₄(Si₂₇Al₉)O₇₂·28H₂O	1	263129	268
Stilbite-Na ()*	Stilbite	Na₉(Si₂₇Al₉)O₇₂·28H₂O	1	263148	15
Sulphur ()*	Sulphur	S	2	263141,263157	2045
Susannite ()*	None	Pb₄(SO₄)(CO₃)₂(OH)₂	1	263141	99
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	2	263131,263132	3337
Tenorite ()*	None	CuO	1	263140	1101
Titanite ()*	Titanite	CaTi(SiO₄)O	1	263135	4899
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	1	263132	2562
Wulfenite ()*	Scheelite	PbMoO₄	4	263140,263141,263142,263143	1655
Zircon ()*	Zircon	Zr(SiO₄)	1	263172	5251

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...