Mineral Evolution Database

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

Mineral locality data provided by mindat.org

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:
Lower Merion Township, Montgomery Co., Pennsylvania, USA

mindat Locality ID: 156398
mindat URL: http://www.mindat.org/loc-156398.html

Tectonic Settings:

Total number of sublocalities beneath "Lower Merion Township, Montgomery Co., Pennsylvania, USA": 7
Total number of bottom-level sublocalities: 5

Number of Child Localities: 4
Child Localities:
Flat Rock Tunnel
Gladwyne
Lafayette (opposite Lafayette)
Pencoyd (West Manayunk)

Latitude: 40°2'42"N
Longitude: 75°15'36"W
Decimal Degree (lat, lon): 40.045,-75.26

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.

Amphibole	Aragonite	Beryl	Calcite	Chabazite	Chalcanthite	Clay	Corundum	Epsomite	Feldspar
Garnet	Halotrichite	Heulandite	Mica	Millerite	None	Pyroxene	Stilbite	Talc	Titanite
Tourmaline

Albite ()*	Almandine ()*	Aragonite ()*	Beryl ()*	Bornite ()*
Calcite ()*	Chabazite-Ca ()*	Chalcanthite ()*	Dolomite ()*	Enstatite ()*
Epsomite ()*	Halotrichite ()*	Heulandite-Ca ()*	Ilmenite ()*	Microcline ()*
Millerite ()*	Muscovite ()*	Schorl ()*	Stilbite-Ca ()*	Talc ()*
Titanite ()*	Tremolite ()*

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: Al B Be C Ca Cu Fe H K Mg Na Ni O S Si Ti

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Aragonite Beryl Calcite Chabazite Chalcanthite Clay Corundum Epsomite Feldspar
Garnet Halotrichite Heulandite Mica Millerite None Pyroxene Stilbite Talc Titanite
Tourmaline

22 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	1	263129	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	1	263129	2353
Aragonite ()*	Aragonite	Ca(CO₃)	1	263132	3250
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	1	263129	4286
Bornite ()*	None	Cu₅FeS₄	1	263132	5516
Calcite ()*	Calcite	Ca(CO₃)	1	263129	27770
Chabazite-Ca ()*	Chabazite	Ca₂[Al₄Si₈O₂₄]·13H₂O	1	263129	310
Chalcanthite ()*	Chalcanthite	Cu(SO₄)·5H₂O	1	263132	925
Dolomite ()*	None	CaMg(CO₃)₂	1	263132	9895
Enstatite ()*	Pyroxene	Mg₂Si₂O₆	1	263132	944
Epsomite ()*	Epsomite	Mg(SO₄)·7H₂O	1	263132	484
Halotrichite ()*	Halotrichite	Fe²⁺Al₂(SO₄)₄·22H₂O	1	263135	409
Heulandite-Ca ()*	Heulandite	(Ca,Na,K)₅(Si₂₇Al₉)O₇₂·26H₂O	1	263129	246
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	1	263129	5433
Microcline ()*	Feldspar	K(AlSi₃O₈)	1	263129	4924
Millerite ()*	Millerite	NiS	1	263132	1066
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1	263129	17380
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	1	263135	2705
Stilbite-Ca ()*	Stilbite	NaCa₄(Si₂₇Al₉)O₇₂·28H₂O	1	263129	268
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	2	263131,263132	3337
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

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...