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:
Little Britain Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA

Oldest recorded age at locality: 510
Youngest recorded age at locality: 470

mindat Locality ID: 156394
mindat URL: http://www.mindat.org/loc-156394.html

Tectonic Settings:

Total number of sublocalities beneath "Little Britain Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA": 4
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Carter's Chrome Mine (Texas Mine)
Texas
White Rock

Latitude: 39°43'52"N
Longitude: 76°6'22"W
Decimal Degree (lat, lon): 39.731111111111,-76.106111111111

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.

Amorphous	Aragonite	Brookite	Brucite	Calcite	Chlorite	Clay	Corrensite	Corundum	Garnet
Hydrotalcite	Millerite	None	Olivine	Pyrite	Pyroxene	Quartz	Serpentine	Spinel	Talc
Vesuvianite

Antigorite ()*	Aragonite ()*	Brookite ()*	Brucite ()*	Cacoxenite ()*
Calcite ()*	Chromite ()*	Chrysotile ()*	Clinochlore ()*	Dolomite ()*
Dozyite ()*	Enstatite ()*	Forsterite ()*	Hematite ()*	Hydromagnesite ()*
Ilmenite ()*	Lizardite ()*	Magnesiochromite ()*	Magnesite ()*	Magnetite ()*
Maucherite ()*	Millerite ()*	Pyrite ()*	Pyroaurite ()*	Quartz ()*
Talc ()*	Uvarovite ()*	Vesuvianite ()*	Zaratite ()*

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 As C Ca Cr F Fe H Mg Na Ni O P S Si Ti

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amorphous Aragonite Brookite Brucite Calcite Chlorite Clay Corrensite Corundum Garnet
Hydrotalcite Millerite None Olivine Pyrite Pyroxene Quartz Serpentine Spinel Talc
Vesuvianite

29 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Antigorite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄			1	263025	708
Aragonite ()*	Aragonite	Ca(CO₃)			1	263025	3250
Brookite ()*	Brookite	TiO₂	510	470	1	263023	700
Brucite ()*	Brucite	Mg(OH)₂			1	263025	462
Cacoxenite ()*	None	Fe³⁺₂₄AlO₆(PO₄)₁₇(OH)₁₂·75H₂O			1	263025	280
Calcite ()*	Calcite	Ca(CO₃)			1	263025	27770
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	510	470	2	263023,263025	3902
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄			2	263025,263026	951
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈			1	263025	1756
Dolomite ()*	None	CaMg(CO₃)₂	510	470	2	263023,263025	9895
Dozyite ()*	Corrensite Clay	Mg₇Al₂(Si₄Al₂)O₁₅(OH)₁₂			1	263025	3
Enstatite ()*	Pyroxene	Mg₂Si₂O₆			1	263025	944
Forsterite ()*	Olivine	Mg₂(SiO₄)			1	263025	1188
Hematite ()*	Corundum	Fe₂O₃			1	263025	14640
Hydromagnesite ()*	None	Mg₅(CO₃)₄(OH)₂·4H₂O			1	263025	341
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			1	263025	5433
Lizardite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄			1	263025	359
Magnesiochromite ()*	Spinel	MgCr₂O₄			1	263025	311
Magnesite ()*	Calcite	Mg(CO₃)	510	470	2	263023,263025	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	510	470	3	263023,263025,263026	14899
Maucherite ()*	None	Ni₁₁As₈			1	263025	161
Millerite ()*	Millerite	NiS			1	263025	1066
Pyrite ()*	Pyrite	FeS₂			1	263025	39462
Pyroaurite ()*	Hydrotalcite	Mg₆Fe³⁺₂(CO₃)(OH)₁₆·4H₂O			1	263025	89
Quartz ()*	Quartz	SiO₂			1	263025	61156
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			1	263026	3337
Uvarovite ()*	Garnet	Ca₃Cr₂(SiO₄)₃			1	263025	212
Vesuvianite ()*	Vesuvianite	(Ca,Na)₁₉(Al,Mg,Fe)₁₃(SiO₄)₁₀(Si₂O₇)₄(OH,F,O)₁₀			1	263025	1395
Zaratite ()*	Amorphous	Ni₃(CO₃)(OH)₄·4H₂O	510	470	2	263023,263025	56

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	podchrome-00504	510	470	Lower Ordovician (490±20 Ma)										Cr	9665	Carter's Chrome Mine (Texas Mine), Little Britain Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA	Carter	Moiser et al. (2012)		USGSSIR2012_5157

Sample	Source Locality	Reference URL
R050455	Texas, Little Britain Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA	https://rruff.info/R050455
R070228	Wood's Chrome Mine (Wood's Mine), Texas, Little Britain Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA	https://rruff.info/R070228
R100040	Wood's Chrome Mine (Wood's Mine), Texas, Little Britain Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA	https://rruff.info/R100040

All locality data graciously provided by mindat.org

All age data...