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:
Fredericksburg (City), Virginia, USA

mindat Locality ID: 254300
mindat URL: http://www.mindat.org/loc-254300.html

Tectonic Settings:

Total number of sublocalities beneath "Fredericksburg (City), Virginia, USA": 5
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Fredericksburg Stone Company Quarry
Fredricksburg Quarry
Hazel Run
Lafayette Boulevard
Locality 1

Latitude: 38°19'32"N
Longitude: 77°30'14"W
Decimal Degree (lat, lon): 38.325555555556,-77.503888888889

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.

Alunite	Gypsum	Halotrichite	None	Not in a structural group	Tridymite

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 Ca Fe H K Mg O S Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Alunite Gypsum Halotrichite None Not in a structural group Tridymite

5 IMA Minerals at location:

Alunogen ()*	Gypsum ()*	Jarosite ()*	Pickeringite ()*	Tridymite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Alunogen ()*	Not in a structural group	Al₂(SO₄)₃(H₂O)₁₂·5H₂O	1	281066	272
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	1	281068	6890
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	1	281066	2228
Pickeringite ()*	Halotrichite	MgAl₂(SO₄)₄·22H₂O	1	281066	265
Tridymite ()*	Tridymite	SiO₂	1	281067	458

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...