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:
Garrison, Garrison Area, Powell Co., Montana, USA

mindat Locality ID: 220370
mindat URL: http://www.mindat.org/loc-220370.html

Tectonic Settings:

Total number of sublocalities beneath "Garrison, Garrison Area, Powell Co., Montana, USA": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Clay Deposit
Clay Deposit (2)
Clay Deposit (3)

Latitude: 46°31'6"N
Longitude: 112°47'20"W
Decimal Degree (lat, lon): 46.518333333333,-112.78888888889

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.

Calcite	Clay	Kaolinite	Mica	None	Pyrophyllite	Quartz	Smectite-vermiculite

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 C Ca H K Mg Na O Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Calcite Clay Kaolinite Mica None Pyrophyllite Quartz Smectite-vermiculite

7 IMA Minerals at location:

Calcite ()*	Dolomite ()*	Kaolinite ()*	Montmorillonite ()*	Muscovite ()*
Pyrophyllite ()*	Quartz ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Calcite ()*	Calcite	Ca(CO₃)	3	232907,232908,232909	27770
Dolomite ()*	None	CaMg(CO₃)₂	2	232908,232909	9895
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	2	232907,232908	5591
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	2	232907,232909	1508
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	3	232907,232908,232909	17380
Pyrophyllite ()*	Clay Pyrophyllite	Al₂Si₄O₁₀(OH)₂	1	232908	771
Quartz ()*	Quartz	SiO₂	2	232907,232908	61156

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...