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

mindat Locality ID: 307375
mindat URL: http://www.mindat.org/loc-307375.html

Tectonic Settings:

Total number of sublocalities beneath "Woodensburg-Cardiff District, Baltimore Co., Maryland, USA": 4
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Blue Mount
McComas Ore Banks
Norris Ore Bank

Latitude: 39°37'5"N
Longitude: 76°36'33"W
Decimal Degree (lat, lon): 39.618055555556,-76.609166666667

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.

Aragonite	Brucite	Clay	None	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 Cr Fe H Mg O Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Aragonite Brucite Clay None Spinel Talc

6 IMA Minerals at location:

Aragonite ()*	Brucite ()*	Chromite ()*	Hydromagnesite ()*	Magnetite ()*
Talc ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Aragonite ()*	Aragonite	Ca(CO₃)	1	218574	3250
Brucite ()*	Brucite	Mg(OH)₂	1	218574	462
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	2	218575,218576	3902
Hydromagnesite ()*	None	Mg₅(CO₃)₄(OH)₂·4H₂O	1	218574	341
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2	218575,218576	14899
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	1	218574	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...