Latitude & Longitude:
35° North , 110° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
A gypsum deposit located in the N½ sec. 33, T9N, R21E, G&SRM, approximately 1 mile west of US highway 60, S of Cottonwood Ridge.
...an area approximately one mile west of U.S. 60, in the north half of sec. 33, T9N, R21E, G&SRM (locality G-2), where only the extreme top of the zone is fleetingly exposed, thus requiring careful inspection to detect its presence. The gentleness of the local topography, the probability of thick deposits of good quality near the surface, and the accessibility and proximity to U. S. Highway 60 all combine to indicate that locality G-2 is the most favorable locality on the Reservation in which to conduct immediate additional exploration...
Mineralization is massive, bedded gypsum in the upper block of the Upper Supai Formation.
Select Mineral List TypeStandard Detailed Strunz Dana Chemical Elements
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
1 valid mineral.
Detailed Mineral List:
| ⓘ Gypsum|
Formula: CaSO4 · 2H2O
Reference: Moore, R.T. (1968), AZ Bur. Mines Bull. 177: 65.
List of minerals arranged by Strunz 10th Edition classification
|Group 7 - Sulphates, Chromates, Molybdates and Tungstates|
|ⓘ||Gypsum||7.CD.40||CaSO4 · 2H2O|
List of minerals arranged by Dana 8th Edition classification
|Group 29 - HYDRATED ACID AND NORMAL SULFATES|
|ⓘ||Gypsum||184.108.40.206||CaSO4 · 2H2O|
List of minerals for each chemical element
|H||ⓘ Gypsum||CaSO4 · 2H2O|
|O||ⓘ Gypsum||CaSO4 · 2H2O|
|S||ⓘ Gypsum||CaSO4 · 2H2O|
|Ca||ⓘ Gypsum||CaSO4 · 2H2O|
Sort byYear (asc) Year (desc) Author (A-Z) Author (Z-A)
Moore, R.T. (1968), Mineral Deposits of the Fort Apache Indian Reservation, Arizona, University of Arizona – Arizona Bureau of Mines Bulletin 177: 65.
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