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Chalk Mountain Mine, Spruce Pine, Spruce Pine District, Mitchell Co., North Carolina, USAi
Regional Level Types
Chalk Mountain MineMine
Spruce Pine- not defined -
Spruce Pine DistrictMining District
Mitchell Co.County
North CarolinaState
USACountry

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Key
Lock Map
Latitude & Longitude (WGS84):
35° 53' 56'' North , 82° 6' 19'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Spruce Pine2,134 (2017)4.1km
Bakersville452 (2017)13.8km
Burnsville1,660 (2017)17.7km
Crossnore192 (2017)20.9km
Marion7,861 (2017)25.4km


A large pegmatite granite pegmatite (Alaskite) body, formerly commercially mined.

Operations included 2 mines. From 1975 EMJ DIR-500000.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


15 valid minerals. 1 erroneous literature entry.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Streeter,Michael.,2003,A Rockhounding Guide to North Carolinas Blue Ridge Mountains,pg#84-85
Albite var: Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Reference: Erd,Richard C.,(1996) U.S Geological Survey unpublished data
'Albite-Anorthite Series'
Reference: Lesure,Frank G.,(1968) Mica Deposits of the Blue Ridge in North Carolina:USGS Professional Paper 577
Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Reference: MinMax Mineral Information System
Almandine
Formula: Fe2+3Al2(SiO4)3
Reference: C.W. Allen collection
Autunite
Formula: Ca(UO2)2(PO4)2 · 11H2O
Reference: Streeter,Michael.,2003,A Rockhounding Guide to North Carolinas Blue Ridge Mountains,pg#84-85
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: Hoda,Syed N. and Hood,William C.,(1972) Laboratory Alteration of Trioctahedral Micas;Clays and Clay Minerals,Vol.20, (343-358)
Clinozoisite
Formula: {Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Reference: Richard C. Erd, US. Geological Survey unpublished data
Clinozoisite var: Clinothulite
Formula: {Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Reference: Richard C. Erd, US. Geological Survey unpublished data
'Feldspar Group'
Reference: Lesure,Frank G.,(1968) Mica Deposits of the Blue Ridge in North Carolina:USGS Professional Paper 577
'Feldspar Group var: Perthite'
Reference: Lesure,Frank G.,(1968) Mica Deposits of the Blue Ridge in North Carolina:USGS Professional Paper 577
Gahnite
Formula: ZnAl2O4
Reference: Rocks & Min.:60:85 (see also Dana 7:I:695).
Malachite
Formula: Cu2(CO3)(OH)2
Reference: C.W. Allen collection
Metatorbernite
Formula: Cu(UO2)2(PO4)2 · 8H2O
Reference: Jan H.Bernard and Jaroslav Hyrsl,2004,Minerals and their Localities,pg. 395 and RRUFF database specimen No.RO70683
Microcline
Formula: K(AlSi3O8)
Reference: Streeter,Michael.,2003,A Rockhounding Guide to North Carolinas Blue Ridge Mountains,pg#84-85
Mimetite
Formula: Pb5(AsO4)3Cl
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Streeter,Michael.,2003,A Rockhounding Guide to North Carolinas Blue Ridge Mountains,pg#84-85
Opal
Formula: SiO2 · nH2O
Description: Hyalite is plentiful and fluoresces bright green Can have 3000 ppm uranium.( Applied Optics V.20 no.8 pg.1279-1296.
Reference: Streeter.Michael.,2003,A Rockhounding Guide to North Carolinas Blue Ridge Mountains.pg#84-85
Opal var: Opal-AN
Formula: SiO2 · nH2O
Description: Hyalite is plentiful and fluoresces bright green Can have 3000 ppm uranium.( Applied Optics V.20 no.8 pg.1279-1296.
Reference: Streeter.Michael.,2003,A Rockhounding Guide to North Carolinas Blue Ridge Mountains.pg#84-85
Quartz
Formula: SiO2
Reference: Streeter,Michael.,(2003) A Rockhounding Guide to North Carolinas Blue Ridge Mountains:pg#84-85
Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
Reference: Dana 7:I:695; Rocks & Min.:60:85; C.W. Allen collection
Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Reference: C.W. Allen collection
Uranophane-β
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Reference: Van King

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Gahnite4.BB.05ZnAl2O4
Opal4.DA.10SiO2 · nH2O
var: Opal-AN4.DA.10SiO2 · nH2O
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Malachite5.BA.10Cu2(CO3)(OH)2
Group 8 - Phosphates, Arsenates and Vanadates
Autunite8.EB.05Ca(UO2)2(PO4)2 · 11H2O
Metatorbernite8.EB.10Cu(UO2)2(PO4)2 · 8H2O
Mimetite ?8.BN.05Pb5(AsO4)3Cl
Torbernite8.EB.05Cu(UO2)2(PO4)2 · 12H2O
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
var: Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
Allanite-(Ce)9.BG.05b{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Almandine9.AD.25Fe2+3Al2(SiO4)3
Clinozoisite9.BG.05a{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
var: Clinothulite9.BG.05a{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Uranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
Uranophane-β9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Feldspar Group'-
'var: Perthite'-

List of minerals arranged by Dana 8th Edition classification

Group 7 - MULTIPLE OXIDES
AB2X4
Gahnite7.2.1.4ZnAl2O4
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Autunite40.2a.1.1Ca(UO2)2(PO4)2 · 11H2O
Metatorbernite40.2a.13.2Cu(UO2)2(PO4)2 · 8H2O
Torbernite40.2a.13.1Cu(UO2)2(PO4)2 · 12H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Mimetite ?41.8.4.2Pb5(AsO4)3Cl
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Group 53 - NESOSILICATES Insular SiO4 Groups and Other Anions or Complex Cations
Insular SiO4 Groups and Other Anions of Complex Cations with (UO2)
Uranophane53.3.1.2Ca(UO2)2(SiO3OH)2 · 5H2O
Uranophane-β53.3.1.9Ca(UO2)2(SiO3OH)2 · 5H2O
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Allanite-(Ce)58.2.1a.1{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Clinozoisite58.2.1a.4{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
Albite
var: Oligoclase
-(Na,Ca)[Al(Si,Al)Si2O8]
'Albite-Anorthite Series'-
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Clinozoisite
var: Clinothulite
-{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
'Feldspar Group'-
'var: Perthite'-
Opal
var: Opal-AN
-SiO2 · nH2O

List of minerals for each chemical element

HHydrogen
H AutuniteCa(UO2)2(PO4)2 · 11H2O
H TorberniteCu(UO2)2(PO4)2 · 12H2O
H MuscoviteKAl2(AlSi3O10)(OH)2
H MalachiteCu2(CO3)(OH)2
H UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
H Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
H MetatorberniteCu(UO2)2(PO4)2 · 8H2O
H Opal (var: Opal-AN)SiO2 · nH2O
H Clinozoisite (var: Clinothulite){Ca2}{Al3}(Si2O7)(SiO4)O(OH)
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H OpalSiO2 · nH2O
H Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
H Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
CCarbon
C MalachiteCu2(CO3)(OH)2
OOxygen
O AutuniteCa(UO2)2(PO4)2 · 11H2O
O TorberniteCu(UO2)2(PO4)2 · 12H2O
O AlmandineFe32+Al2(SiO4)3
O MuscoviteKAl2(AlSi3O10)(OH)2
O AlbiteNa(AlSi3O8)
O MicroclineK(AlSi3O8)
O MalachiteCu2(CO3)(OH)2
O UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
O GahniteZnAl2O4
O Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
O MetatorberniteCu(UO2)2(PO4)2 · 8H2O
O Opal (var: Opal-AN)SiO2 · nH2O
O Clinozoisite (var: Clinothulite){Ca2}{Al3}(Si2O7)(SiO4)O(OH)
O Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
O QuartzSiO2
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O OpalSiO2 · nH2O
O Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
O Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
O MimetitePb5(AsO4)3Cl
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
NaSodium
Na AlbiteNa(AlSi3O8)
Na Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
AlAluminium
Al AlmandineFe32+Al2(SiO4)3
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al AlbiteNa(AlSi3O8)
Al MicroclineK(AlSi3O8)
Al GahniteZnAl2O4
Al Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Al Clinozoisite (var: Clinothulite){Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Al Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
SiSilicon
Si AlmandineFe32+Al2(SiO4)3
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si AlbiteNa(AlSi3O8)
Si MicroclineK(AlSi3O8)
Si UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Si Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Si Opal (var: Opal-AN)SiO2 · nH2O
Si Clinozoisite (var: Clinothulite){Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Si Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Si QuartzSiO2
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si OpalSiO2 · nH2O
Si Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Si Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
PPhosphorus
P AutuniteCa(UO2)2(PO4)2 · 11H2O
P TorberniteCu(UO2)2(PO4)2 · 12H2O
P MetatorberniteCu(UO2)2(PO4)2 · 8H2O
ClChlorine
Cl MimetitePb5(AsO4)3Cl
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K MicroclineK(AlSi3O8)
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
CaCalcium
Ca AutuniteCa(UO2)2(PO4)2 · 11H2O
Ca UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Ca Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Ca Clinozoisite (var: Clinothulite){Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Ca Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Ca Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Ca Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
FeIron
Fe AlmandineFe32+Al2(SiO4)3
Fe Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
CuCopper
Cu TorberniteCu(UO2)2(PO4)2 · 12H2O
Cu MalachiteCu2(CO3)(OH)2
Cu MetatorberniteCu(UO2)2(PO4)2 · 8H2O
ZnZinc
Zn GahniteZnAl2O4
AsArsenic
As MimetitePb5(AsO4)3Cl
CeCerium
Ce Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
PbLead
Pb MimetitePb5(AsO4)3Cl
UUranium
U AutuniteCa(UO2)2(PO4)2 · 11H2O
U TorberniteCu(UO2)2(PO4)2 · 12H2O
U UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
U MetatorberniteCu(UO2)2(PO4)2 · 8H2O
U Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Neoproterozoic
541 - 1000 Ma



ID: 3186076
Neoproterozoic volcanic rocks

Age: Neoproterozoic (541 - 1000 Ma)

Lithology: Volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Neoproterozoic
541 - 1000 Ma



ID: 2940953
Alligator Back Formation; Amphibolite

Age: Neoproterozoic (541 - 1000 Ma)

Stratigraphic Name: Alligator Back Formation

Description: Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock.

Comments: Original map source: The North Carolina Dept. of Environment, Health, and Natural Resources, Division of Land Resources, NC Geological Survey, in cooperation with the NC Center for Geographic Information and Analysis, 1998 (updated 2007), Geology - North Carolina (1:250,000)

Lithology: Major:{amphibolite}, Minor:{metasedimentary}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Olson, J. C. (1944), North Carolina Department of Conservation and Development Bulletin 43: Pl. 2.
Palache, C., Berman, H. & Frondel, C. (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged, 834pp.: 695.
Hoda, Syed N. and Hood, William C. (1972), Laboratory Alteration of Trioctahedral Micas; Clays and Clay Minerals: 20: 343-358.
Rocks & Minerals (1985): 60: 85.
Erd, Richard C. (1996), USGS unpublished data.
Streeter, Michael (2003), A Rockhounding Guide to North Carolinas Blue Ridge Mountains: 84-85.
Bernard, Jan H. and Hyrsl, Jaroslav (2004), Minerals and their Localities: 395.
RRUFF database specimen No.RO70683
MESA Health and Safety Inspection Report February 15, 16, and 18 (____).


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