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:
Yogo District, Little Belt Mts, Judith Basin Co., Montana, USA

mindat Locality ID: 50256
mindat URL: http://www.mindat.org/loc-50256.html

Tectonic Settings:

Total number of sublocalities beneath "Yogo District, Little Belt Mts, Judith Basin Co., Montana, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Yogo Gulch
Yogo Peak Intrusion

Latitude: 46°52'35"N
Longitude: 110°18'26"W
Decimal Degree (lat, lon): 46.876388888889,-110.30722222222

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.

Analcime	Baryte	Calcite	Clay	Corundum	Feldspar	Garnet	Mica	None	Olivine
Pyrite	Pyroxene	Spinel	Tridymite	Zircon

Aegirine ()*	Analcime ()*	Ankerite ()*	Augite ()*	Baryte ()*
Calcite ()*	Corundum ()*	Diopside ()*	Dolomite ()*	Forsterite ()*
Hematite ()*	Magnetite ()*	Microcline ()*	Nepheline ()*	Phlogopite ()*
Pyrite ()*	Pyrope ()*	Spinel ()*	Zircon ()*

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 Ba C Ca Fe H K Mg Na O S Si Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Analcime Baryte Calcite Clay Corundum Feldspar Garnet Mica None Olivine
Pyrite Pyroxene Spinel Tridymite Zircon

19 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	2	229842,229843	1022
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	2	229842,229843	1627
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	1	229842	3092
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	2	229842,229843	2060
Baryte ()*	Baryte	Ba(SO₄)	1	229842	11547
Calcite ()*	Calcite	Ca(CO₃)	1	229842	27770
Corundum ()*	Corundum	Al₂O₃	1	229842	1797
Diopside ()*	Pyroxene	CaMgSi₂O₆	1	229842	4135
Dolomite ()*	None	CaMg(CO₃)₂	1	229842	9895
Forsterite ()*	Olivine	Mg₂(SiO₄)	1	229843	1188
Hematite ()*	Corundum	Fe₂O₃	1	229842	14640
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	229842	14899
Microcline ()*	Feldspar	K(AlSi₃O₈)	1	229843	4924
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)	1	229843	884
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	1	229842	2273
Pyrite ()*	Pyrite	FeS₂	1	229842	39462
Pyrope ()*	Garnet	Mg₃Al₂(SiO₄)₃	1	229842	341
Spinel ()*	Spinel	MgAl₂O₄	1	229842	1934
Zircon ()*	Zircon	Zr(SiO₄)	2	229842,229843	5251

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL
R060020	Yogo Gulch, Yogo District, Little Belt Mts, Judith Basin Co., Montana, USA	https://rruff.info/R060020

All locality data graciously provided by mindat.org

All age data...