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Holbrook Ruby Mine, Macon Co., North Carolina, USAi
Regional Level Types
Holbrook Ruby MineMine
Macon Co.County
North CarolinaState
USACountry

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Key
Latitude & Longitude (WGS84):
35° 16' 6'' North , 83° 21' 40'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Franklin3,940 (2017)9.7km
Dillsboro240 (2017)14.9km
Webster375 (2017)15.5km
Forest Hills372 (2017)15.5km
Sylva2,617 (2017)17.0km


REF:Deposit:: NC GEOL SURVEY
Deposit:: MSHA INSPECTORS 1978
Deposit:: NOT ON 1980 OR 1981 MSHA LISTS
Deposit:: OLSON, J.C. & OTHERS, 1946, NC GEOL SURVEY, BULL 49, PLATE 2
Deposit:: FOR ATTACHMENT SEE 37-087-00003.
Commodities (Major) - Gemstone - Ruby
Development Status: Past Producer

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


2 valid minerals.

Detailed Mineral List:

Corundum
Formula: Al2O3
Reference: U.S Bureau of Mines, Sep,1995
Corundum var: Ruby
Formula: Al2O3
Reference: U.S Bureau of Mines, Sep,1995
Corundum var: Sapphire
Formula: Al2O3
Reference: U.S Bureau of Mines, Sep,1995
Pyrope
Formula: Mg3Al2(SiO4)3
Reference: U.S Bureau of Mines/Spatial Data from the Minerals System/Mineral Industry Location System(Mas/Mils)CD-Rom,Sep,1995
Pyrope var: Rhodolite
Formula: Mg3Al2(SiO4)3
Reference: U.S Bureau of Mines/Spatial Data from the Minerals System/Mineral Industry Location System(Mas/Mils)CD-Rom,Sep,1995

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Corundum4.CB.05Al2O3
var: Ruby4.CB.05Al2O3
var: Sapphire4.CB.05Al2O3
Group 9 - Silicates
Pyrope9.AD.25Mg3Al2(SiO4)3
var: Rhodolite9.AD.25Mg3Al2(SiO4)3

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Corundum4.3.1.1Al2O3
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Pyrope51.4.3a.1Mg3Al2(SiO4)3
Unclassified Minerals, Mixtures, etc.
Corundum
var: Ruby
-Al2O3
var: Sapphire-Al2O3
Pyrope
var: Rhodolite
-Mg3Al2(SiO4)3

List of minerals for each chemical element

OOxygen
O Corundum (var: Ruby)Al2O3
O Corundum (var: Sapphire)Al2O3
O Pyrope (var: Rhodolite)Mg3Al2(SiO4)3
O CorundumAl2O3
O PyropeMg3Al2(SiO4)3
MgMagnesium
Mg Pyrope (var: Rhodolite)Mg3Al2(SiO4)3
Mg PyropeMg3Al2(SiO4)3
AlAluminium
Al Corundum (var: Ruby)Al2O3
Al Corundum (var: Sapphire)Al2O3
Al Pyrope (var: Rhodolite)Mg3Al2(SiO4)3
Al CorundumAl2O3
Al PyropeMg3Al2(SiO4)3
SiSilicon
Si Pyrope (var: Rhodolite)Mg3Al2(SiO4)3
Si PyropeMg3Al2(SiO4)3

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

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