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:
Cardiff, Woodensburg-Cardiff District, Harford Co., Maryland, USA

mindat Locality ID: 203905
mindat URL: http://www.mindat.org/loc-203905.html

Tectonic Settings:

Total number of sublocalities beneath "Cardiff, Woodensburg-Cardiff District, Harford Co., Maryland, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Cardiff Serpentine Quarry
William E. Williams & Company Quarry

Latitude: 39°43'6"N
Longitude: 76°20'11"W
Decimal Degree (lat, lon): 39.718333333333,-76.336388888889

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	Amphibole	Calcite	Chalcopyrite	Clay	None	Pyrite	Quartz	Serpentine	Spinel
Talc

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: C Ca Cu Fe H Mg O S Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amorphous Amphibole Calcite Chalcopyrite Clay None Pyrite Quartz Serpentine Spinel
Talc

12 IMA Minerals at location:

Actinolite ()*	Antigorite ()*	Calcite ()*	Chalcopyrite ()*	Chrysotile ()*
Dolomite ()*	Magnesite ()*	Magnetite ()*	Opal ()*	Pyrite ()*
Quartz ()*	Talc ()*

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	218823	3419
Antigorite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	1	218823	708
Calcite ()*	Calcite	Ca(CO₃)	1	218823	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	218823	27198
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	1	218823	951
Dolomite ()*	None	CaMg(CO₃)₂	1	218823	9895
Magnesite ()*	Calcite	Mg(CO₃)	1	218823	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	218823	14899
Opal ()*	Amorphous	SiO₂·nH₂O	1	218823	2994
Pyrite ()*	Pyrite	FeS₂	1	218823	39462
Quartz ()*	Quartz	SiO₂	1	218823	61156
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	1	218823	3337

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...