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:
Devils Backbone, North Fork John Day River, Grant Co., Oregon, USA

mindat Locality ID: 8004
mindat URL: http://www.mindat.org/loc-8004.html

Tectonic Settings:

Total number of sublocalities beneath "Devils Backbone, North Fork John Day River, Grant Co., Oregon, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 44°58'49"N
Longitude: 119°11'54"W
Decimal Degree (lat, lon): 44.980277777778,-119.19833333333

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	Apophyllite	Calcite	Gismondine	Gyrolite	Natrolite	None	Not in a structural group	Thomsonite

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 F H K Mg Na O Si

Elements from minerals reported directly at this locality: Al C Ca F H K Mg Na O Si

Structural Groups for minerals in this locality:
Analcime Apophyllite Calcite Gismondine Gyrolite Natrolite None Not in a structural group Thomsonite

10 IMA Minerals at location:

Analcime ()*	Calcite ()*	Fluorapophyllite-(K) ()*	Gismondine ()*	Gyrolite ()*
Mesolite ()*	Natrolite ()*	Offretite ()*	Tacharanite ()*	Thomsonite-Ca ()*

Mineral name	Structural Groups	IMA Formula	# of localities containing mineral
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	1627
Calcite ()*	Calcite	Ca(CO₃)	27770
Fluorapophyllite-(K) ()*	Apophyllite	KCa₄Si₈O₂₀F·8H₂O	303
Gismondine ()*	Gismondine	Ca₂(Si₄Al₄)O₁₆·8H₂O	128
Gyrolite ()*	Gyrolite	NaCa₁₆(Si₂₃Al)O₆₀(OH)₈·14H₂O	142
Mesolite ()*	Natrolite	Na₂Ca₂(Si₉Al₆)O₃₀·8H₂O	425
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	1236
Offretite ()*	Not in a structural group	KCaMg(Si₁₃Al₅)O₃₆·15H₂O	146
Tacharanite ()*	None	Ca₁₂Al₂Si₁₈O₃₃(OH)₃₆	47
Thomsonite-Ca ()*	Thomsonite	NaCa₂(Al₅Si₅)O₂₀·6H₂O	452

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...