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:
West Hempfield Township, Lancaster Co., Pennsylvania, USA

mindat Locality ID: 212584
mindat URL: http://www.mindat.org/loc-212584.html

Tectonic Settings:

Total number of sublocalities beneath "West Hempfield Township, Lancaster Co., Pennsylvania, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Chestnut Hill
Mud Lake - Grubb Lake

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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.

Clay	Corundum	Diaspore	Lepidocrocite	Mica	None	Pyrite	Quartz	Rutile	Spinel
Sulphur

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 Fe H K Mn O S Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Clay Corundum Diaspore Lepidocrocite Mica None Pyrite Quartz Rutile Spinel
Sulphur

9 IMA Minerals at location:

Goethite ()*	Hematite ()*	Lepidocrocite ()*	Magnetite ()*	Muscovite ()*
Pyrite ()*	Pyrolusite ()*	Quartz ()*	Sulphur ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Goethite ()*	Diaspore	FeO(OH)	1	263029	7437
Hematite ()*	Corundum	Fe₂O₃	2	263028,263029	14640
Lepidocrocite ()*	Lepidocrocite	Fe³⁺O(OH)	1	263029	581
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	263029	14899
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1	263028	17380
Pyrite ()*	Pyrite	FeS₂	1	263028	39462
Pyrolusite ()*	Rutile	MnO₂	1	263029	3106
Quartz ()*	Quartz	SiO₂	2	263028,263029	61156
Sulphur ()*	Sulphur	S	1	263028	2045

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...