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Dark Ridge Olivine deposit, Webster-Balsam, Jackson County, North Carolina, USAi
Regional Level Types
Dark Ridge Olivine depositDeposit
Webster-BalsamArea
Jackson CountyCounty
North CarolinaState
USACountry

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Latitude & Longitude (WGS84):
35° 24' 45'' North , 83° 6' 3'' West
Latitude & Longitude (decimal):
35.41250,-83.10083
GeoHash:
G#: dnkckyxuf
GRN:
N24W49
Type:
Deposit
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Hazelwood1,655 (2017)10.8km
Maggie Valley1,251 (2017)11.7km
Sylva2,617 (2017)12.1km
Cullowhee6,228 (2017)12.9km
Webster375 (2017)13.0km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Gem & Mineral Society of FranklinFranklin, North Carolina36km
Mindat Locality ID:
100984
Long-form identifier:
mindat:1:2:100984:5
GUID (UUID V4):
0


A former Cr-Talc deposit/mine.

COMPOSED OF UNUSUALLY COARSE GRAINED DUNITE AND SAXONITE. SHATTERED OLIVINE CRYSTALS AS LARGE AS SIX INCHES IN DIAMETER OCCUR THROUGHOUT CORE. SMALL CRYSTALS OF CHROMITE ARE VISIBLE THROUGHOUT DUNITE AND AT MANY PLACES SEAMS OF MASSIVE CHROMITE OUTCROP. SAXONITE OCCURS CHIEFLY IN BORDER ZONE OF PERODITITE OR AS SMALL FAULT BLOCKS WITHIN DUNITE. SAXONITE IS PARTLY ALTERED TO SERPENTINE AND STEATITE. BRONZITE CRYSTALS AVERAGE 1/4 IN. IN DIAMETER AND MAKE UP 10% OF SAXONITE. BRONZITE IS OFTEN ALTERED TO TALC.

Host Rock: Mafic Gneiss

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


5 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
Group 9 - Silicates
ⓘChrysotile9.00.Mg3(Si2O5)(OH)4
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘvar. Bronzite9.DA.05(Mg,Fe2+)2[SiO3]2
ⓘTalc9.EC.05Mg3Si4O10(OH)2
ⓘAntigorite9.ED.15Mg3(Si2O5)(OH)4
Unclassified
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ AntigoriteMg3(Si2O5)(OH)4
Hⓘ ChrysotileMg3(Si2O5)(OH)4
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
OOxygen
Oⓘ AntigoriteMg3(Si2O5)(OH)4
Oⓘ ChrysotileMg3(Si2O5)(OH)4
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ EnstatiteMg2Si2O6
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ Enstatite var. Bronzite(Mg,Fe2+)2[SiO3]2
Oⓘ Fayalite-Forsterite Series
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
MgMagnesium
Mgⓘ AntigoriteMg3(Si2O5)(OH)4
Mgⓘ ChrysotileMg3(Si2O5)(OH)4
Mgⓘ EnstatiteMg2Si2O6
Mgⓘ TalcMg3Si4O10(OH)2
Mgⓘ Enstatite var. Bronzite(Mg,Fe2+)2[SiO3]2
Mgⓘ Fayalite-Forsterite Series
SiSilicon
Siⓘ AntigoriteMg3(Si2O5)(OH)4
Siⓘ ChrysotileMg3(Si2O5)(OH)4
Siⓘ EnstatiteMg2Si2O6
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ Enstatite var. Bronzite(Mg,Fe2+)2[SiO3]2
Siⓘ Fayalite-Forsterite Series
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
FeIron
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ Enstatite var. Bronzite(Mg,Fe2+)2[SiO3]2
Feⓘ Fayalite-Forsterite Series

Other Databases

Link to USGS MRDS:10025915.

Other Regions, Features and Areas containing this locality

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

(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0370990024
CRIB RECORD NO. K001893.
LEWIS, J. VOLNEY (1922), DEPOSITS OF CHROME ORE, USGS BULLETIN 725.
Hunter, Charles E. (1941) Forsterite Olivine Deposits of North Carolina and Georgia. Bulletin 47. Geological Survey of Georgiapages 14, 15 & plate 7
TENNESSEE VALLEY AUTHORITY (1941), GEOLOGIC MAP, REPORT.
Hunter, Charles E., Murdock, Thomas G., MacCarthy, Gerald R. (1942) Chromite Deposits of North Carolina. Bulletin 42. North Carolina Division of Mineral Resources
(1968) Mineral resources of the Appalachian region. Professional Paper 580. US Geological Survey doi:10.3133/pp580 pp.326-327
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
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