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:
M. J. Kouba Pegmatite Property, Idaho Co., Idaho, USA

Oldest recorded age at locality: 95
Youngest recorded age at locality: 42

mindat Locality ID: 138862
mindat URL: http://www.mindat.org/loc-138862.html

Tectonic Settings:

Total number of sublocalities beneath "M. J. Kouba Pegmatite Property, Idaho Co., Idaho, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 46°30'35"N
Longitude: 114°48'37"W
Decimal Degree (lat, lon): 46.509722222222,-114.81027777778

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.

Feldspar	None

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 K O Si

Elements from minerals reported directly at this locality: Al K O Si

Structural Groups for minerals in this locality:
Feldspar None

1 IMA Minerals at location:

Microcline ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Microcline ()*	Feldspar	K(AlSi₃O₈)	95	42	0		4924

6 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Sample Num	MinDat Locality ID	Dated Locality (Max Age)	Reference	Reference ID
NAVDAT-3420	80	57	68+12/-11	3420	138862	M. J. Kouba Pegmatite Property, Idaho Co., Idaho, USA	NAVDAT	NAVDAT
NAVDAT-3421	80	57	68+12/-11	3421	138862	M. J. Kouba Pegmatite Property, Idaho Co., Idaho, USA	NAVDAT	NAVDAT
NAVDAT-49561	95	65	80±15	49561	138862	M. J. Kouba Pegmatite Property, Idaho Co., Idaho, USA	NAVDAT	NAVDAT
NAVDAT-49704	50	42	46±4	49704	138862	M. J. Kouba Pegmatite Property, Idaho Co., Idaho, USA	NAVDAT	NAVDAT
NAVDAT-51309	95	65	80±15	51309	138862	M. J. Kouba Pegmatite Property, Idaho Co., Idaho, USA	NAVDAT	NAVDAT
NAVDAT-51343	50	42	46±4	51343	138862	M. J. Kouba Pegmatite Property, Idaho Co., Idaho, USA	NAVDAT	NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...