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:
Williamson Co., Texas, USA

mindat Locality ID: 216294
mindat URL: http://www.mindat.org/loc-216294.html

Tectonic Settings:

Total number of sublocalities beneath "Williamson Co., Texas, USA": 8
Total number of bottom-level sublocalities: 6

Number of Child Localities: 3
Child Localities:
Florence
Georgetown
Round Rock

Latitude: 30°39'54"N
Longitude: 97°44'25"W
Decimal Degree (lat, lon): 30.665,-97.740277777778

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	Baryte	Calcite	Copper	Iron	Marcasite	None	Quartz	Spinel

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: Au C Ca Cr Fe Ni O S Si Sr

Elements from minerals reported directly at this locality: Au

Structural Groups for minerals in this locality:
Aragonite Baryte Calcite Copper Iron Marcasite None Quartz Spinel

10 IMA Minerals at location:

Aragonite ()*	Calcite ()*	Celestine ()*	Chromite ()*	Gold ()*
Iron ()*	Marcasite ()*	Quartz ()*	Taenite ()*	Troilite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Aragonite ()*	Aragonite	Ca(CO₃)	1	271109	3250
Calcite ()*	Calcite	Ca(CO₃)	3	271108,271109,271112	27770
Celestine ()*	Baryte	Sr(SO₄)	1	271111	1252
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	1	271106	3902
Gold ()*	Copper	Au	0		30554
Iron ()*	Iron	Fe	1	271106	1089
Marcasite ()*	Marcasite	FeS₂	1	271112	5674
Quartz ()*	Quartz	SiO₂	2	271110,271112	61156
Taenite ()*	None	(Ni,Fe)	1	271106	703
Troilite ()*	None	FeS	1	271106	1044

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...