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Nantahala Talc and Limestone Mine, Hewitt, Swain Co., North Carolina, USAi
Regional Level Types
Nantahala Talc and Limestone MineMine
Hewitt- not defined -
Swain Co.County
North CarolinaState
USACountry

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Key
Latitude & Longitude (WGS84):
35° 18' 38'' North , 83° 38' 44'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Robbinsville598 (2017)14.7km
Andrews1,752 (2017)20.2km
Bryson City1,458 (2017)22.3km
Franklin3,940 (2017)27.9km
Marble321 (2017)29.5km


A talc and limestone occurrence/mine located 5 miles SW of the Nantahala Outdoor Center on Highway 19 in the Nantahala Gorge. This location is obvious as it is at the only place where Highway 19 crosses the Nantahala River.

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


10 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Aragonite
Formula: CaCO3
Reference: Michael Streeter.
Calcite
Formula: CaCO3
Reference: Michael Streeter ,2003, A Rockhounding Guide to North Carolinas Blue Ridge Mountains, pg # 94
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Smithsonian Institution Mineral Reference Collection No.18898-00 and 18898-A0
Dolomite
Formula: CaMg(CO3)2
Reference: Michael Streeter.
Goethite
Formula: α-Fe3+O(OH)
Reference: Michael Streeter.
Graphite
Formula: C
Reference: Michael Streeter.
Pyrite
Formula: FeS2
Reference: Michael Streeter,2003, A Rockhounding Guide to North Carolinas Blue Ridge Mountains, pg # 94
Quartz
Formula: SiO2
Reference: Michael Streeter,2003,A Rockhounding Guide to North Carolinas Blue Ridge Mountains, pg # 94
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Talc
Formula: Mg3Si4O10(OH)2
Reference: Michael Streeter, 2003, A Rockhounding Guide to North Carolinas Blue Ridge Mountains,pg # 94 , Smithsonian Institution Mineral Reference Collection No.18898-00 and 18898-A0
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Reference: Michael Streeter,2003, A Rockhounding Guide to North Carolinas Blue Ridge Mountains, pg # 94 Smithsonian Institution Mineral Reference Collection No.118259-00

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Group 9 - Silicates
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
Talc9.EC.05Mg3Si4O10(OH)2
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Unclassified Minerals, Rocks, etc.
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Talc71.2.1.3Mg3Si4O10(OH)2
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Aragonite-CaCO3
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

List of minerals for each chemical element

HHydrogen
H Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
H TalcMg3Si4O10(OH)2
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
H Goethiteα-Fe3+O(OH)
H ClinochloreMg5Al(AlSi3O10)(OH)8
CCarbon
C CalciteCaCO3
C AragoniteCaCO3
C GraphiteC
C DolomiteCaMg(CO3)2
OOxygen
O Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
O CalciteCaCO3
O TalcMg3Si4O10(OH)2
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O QuartzSiO2
O AragoniteCaCO3
O DolomiteCaMg(CO3)2
O Goethiteα-Fe3+O(OH)
O ClinochloreMg5Al(AlSi3O10)(OH)8
MgMagnesium
Mg Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Mg TalcMg3Si4O10(OH)2
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Mg DolomiteCaMg(CO3)2
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
AlAluminium
Al Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Al ClinochloreMg5Al(AlSi3O10)(OH)8
SiSilicon
Si Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Si TalcMg3Si4O10(OH)2
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Si QuartzSiO2
Si ClinochloreMg5Al(AlSi3O10)(OH)8
SSulfur
S PyriteFeS2
CaCalcium
Ca CalciteCaCO3
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Ca AragoniteCaCO3
Ca DolomiteCaMg(CO3)2
MnManganese
Mn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Fe PyriteFeS2
Fe Goethiteα-Fe3+O(OH)
NiNickel
Ni Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
ZnZinc
Zn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Streeter, Michael (2003), A Rockhounding Guide to North Carolina's Blue Ridge Mountains: 94.
Smithsonian Institution Mineral Reference Collection No.118259-00 (tremolite).

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

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