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Avalon Mine, Turquoise Mountain, Turquoise Mining District (Courtland-Gleeson Mining District), Cochise County, Arizona, USAi
Regional Level Types
Avalon MineMine (Inactive)
Turquoise MountainMountain
Turquoise Mining District (Courtland-Gleeson Mining District)Mining District
Cochise CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
31° 46' 31'' North , 109° 49' 23'' West
Latitude & Longitude (decimal):
31.77528,-109.82306
GRN:
N22W67
Type:
Mine (Inactive) - last checked 2018
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Elfrida459 (2011)16.3km
Sunizona281 (2011)19.9km
Tombstone1,312 (2017)24.1km
McNeal238 (2011)24.2km
Dragoon209 (2011)34.7km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Sunsites Gem and Mineral ClubPearce, Arizona14km
Mindat Locality ID:
33003
Long-form identifier:
mindat:1:2:33003:8
GUID (UUID V4):
0
Other/historical names associated with this locality:
Turquoise Mine; Diamond Back Claims; Herget Turquoise Mine


A former small Turquoise mine located in the SW ¼ sec. 17, T.19S., R.25E, 1 mile NW of Courtland, on private land.

Mineralization is thin, irregular stringers and small lenses of turquoise in joints and fractures in granite and Bolsa Quartzite along the intrusive contact.

Workings are shallow and underground. At least several hundred pounds of turquoise were produced since the late 1800's, 50 lbs. since 1926.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


1 valid mineral.

Detailed Mineral List:

ⓘ Turquoise
Formula: CuAl6(PO4)4(OH)8 · 4H2O
Description: As stringers and small lenses in joints & fractures in granite & quartzite along an intrusive contact.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 8 - Phosphates, Arsenates and Vanadates
ⓘTurquoise8.DD.15CuAl6(PO4)4(OH)8 · 4H2O

List of minerals for each chemical element

HHydrogen
Hⓘ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
OOxygen
Oⓘ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
AlAluminium
Alⓘ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
PPhosphorus
Pⓘ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
CuCopper
Cuⓘ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O

Other Databases

Link to USGS MRDS:10027128

Other Regions, Features and Areas containing this locality

Mexico
North AmericaContinent
North America PlateTectonic Plate
USA

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Arizona Bureau of Mines files.
MRDS database Dep. ID file #10027128, MRDS ID #M002183; and, Dep. ID #10209770, MAS ID #0040030580.
Wilson, E.D. (1927) Geology and ore deposits of the Courtland-Gleeson region, Arizona: Arizona Bureau of Mines Bulletin No. 123, 79 p.: 66-67.
Crawford, William P., Johnson, Frank (1937) Turquoise deposits of Courtland, Arizona. Economic Geology, 32 (4) 511-523 doi:10.2113/gsecongeo.32.4.511
(1973) Index of Mining Properties in Cochise County, Arizona. University of Arizona Bulletin 187. Arizona Bureau of Mines p.81 - Table 4
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