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St. Francois Co., Missouri, USAi
Regional Level Types
St. Francois Co.County
MissouriState
USACountry

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Key
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Neighbouring regions:
Locality type:County
Largest Settlements:
PlacePopulation
Farmington18,181 (2017)
Park Hills8,692 (2017)
Bonne Terre7,133 (2017)
Flat River5,157 (2017)
Desloge4,939 (2017)
Terre du Lac2,320 (2017)
Museums in region:


Alluvial deposits throughout county

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

29 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!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: R&M 73:2 pp 98-117; U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; American Mineralogist 37:283
'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: U.S. Geological Survey,2005, Mineral Resources Data System: U.S Geological Survey,Reston, Virginia
Andradite
Formula: Ca3Fe3+2(SiO4)3
Reference: R&M 73:2 pp 98-117; American Mineralogist 37:283
'Apatite'
Reference: R&M 73:2 pp 98-117
Baryte
Formula: BaSO4
Bornite
Formula: Cu5FeS4
Reference: R&M 73:2 pp 98-117; U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Bravoite'
Formula: (Fe,Ni)S2
Calcite
Formula: CaCO3
Localities: Reported from at least 10 localities in this region.
Cerussite
Formula: PbCO3
Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 10 localities in this region.
'Chlorite Group'
Reference: R&M 73:2 pp 98-117
Dickite
Formula: Al2(Si2O5)(OH)4
Diopside
Formula: CaMgSi2O6
Reference: R&M 73:2 pp 98-117; American Mineralogist 37:283
Dolomite
Formula: CaMg(CO3)2
Localities: Reported from at least 11 localities in this region.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: R&M 73:2 pp 98-117; U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Epsomite
Formula: MgSO4 · 7H2O
Reference: R&M 73:2 pp 98-117
Fluorite
Formula: CaF2
Reference: R&M 73:2 pp 98-117; U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; American Mineralogist 37:283
Galena
Formula: PbS
Localities: Reported from at least 22 localities in this region.
Goethite
Formula: α-Fe3+O(OH)
Reference: R&M 73:2 pp 98-117
Hematite
Formula: Fe2O3
Reference: R&M 73:2 pp 98-117; American Mineralogist 37:283
Hematite var: Martite
Formula: Fe2O3
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Linnaeite
Formula: Co2+Co3+2S4
Magnetite
Formula: Fe2+Fe3+2O4
Description: To 12 mm
Reference: R&M 73:2 pp 98-117
Malachite
Formula: Cu2(CO3)(OH)2
Reference: R&M 73:2 pp 98-117
Marcasite
Formula: FeS2
Millerite
Formula: NiS
Reference: R&M 73:2 pp 98-117
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Pyrite
Formula: FeS2
Localities: Reported from at least 10 localities in this region.
'Pyroxene Group'
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Pyrrhotite
Formula: Fe7S8
Quartz
Formula: SiO2
Localities: Reported from at least 7 localities in this region.
Siegenite
Formula: CoNi2S4
Reference: R&M 73:2 pp 98-117
Smithsonite
Formula: ZnCO3
Reference: R&M 73:2 pp 98-117
Sphalerite
Formula: ZnS
Localities: Reported from at least 8 localities in this region.
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Bornite2.BA.15Cu5FeS4
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Linnaeite2.DA.05Co2+Co3+2S4
Marcasite2.EB.10aFeS2
Millerite2.CC.20NiS
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Siegenite2.DA.05CoNi2S4
Sphalerite2.CB.05aZnS
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
var: Martite4.CB.05Fe2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Cerussite5.AB.15PbCO3
Dolomite5.AB.10CaMg(CO3)2
Malachite5.BA.10Cu2(CO3)(OH)2
Smithsonite5.AB.05ZnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Epsomite7.CB.40MgSO4 · 7H2O
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Andradite9.AD.25Ca3Fe3+2(SiO4)3
Dickite9.ED.05Al2(Si2O5)(OH)4
Diopside9.DA.15CaMgSi2O6
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Unclassified Minerals, Rocks, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Apatite'-
'Bravoite'-(Fe,Ni)S2
'Chlorite Group'-
'Pyroxene Group'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Millerite2.8.16.1NiS
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 3:4
Linnaeite2.10.1.1Co2+Co3+2S4
Siegenite2.10.1.6CoNi2S4
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
Smithsonite14.1.1.6ZnCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Epsomite29.6.11.1MgSO4 · 7H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Andradite51.4.3b.1Ca3Fe3+2(SiO4)3
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)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
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 1:1 layers
Dickite71.1.1.1Al2(Si2O5)(OH)4
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
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Apatite'-
'Bravoite'-(Fe,Ni)S2
'Chlorite Group'-
Hematite
var: Martite
-Fe2O3
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2
'Pyroxene Group'-

List of minerals for each chemical element

HHydrogen
H MalachiteCu2(CO3)(OH)2
H EpsomiteMgSO4 · 7H2O
H Goethiteα-Fe3+O(OH)
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H DickiteAl2(Si2O5)(OH)4
CCarbon
C CalciteCaCO3
C CerussitePbCO3
C MalachiteCu2(CO3)(OH)2
C SmithsoniteZnCO3
C DolomiteCaMg(CO3)2
OOxygen
O MagnetiteFe2+Fe23+O4
O BaryteBaSO4
O CalciteCaCO3
O CerussitePbCO3
O MalachiteCu2(CO3)(OH)2
O SmithsoniteZnCO3
O EpsomiteMgSO4 · 7H2O
O DolomiteCaMg(CO3)2
O Goethiteα-Fe3+O(OH)
O QuartzSiO2
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O AndraditeCa3Fe23+(SiO4)3
O DiopsideCaMgSi2O6
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O HematiteFe2O3
O Hematite (var: Martite)Fe2O3
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
O MuscoviteKAl2(AlSi3O10)(OH)2
O Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O DickiteAl2(Si2O5)(OH)4
FFluorine
F FluoriteCaF2
F Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
MgMagnesium
Mg EpsomiteMgSO4 · 7H2O
Mg DolomiteCaMg(CO3)2
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg DiopsideCaMgSi2O6
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
AlAluminium
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Al DickiteAl2(Si2O5)(OH)4
SiSilicon
Si QuartzSiO2
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si AndraditeCa3Fe23+(SiO4)3
Si DiopsideCaMgSi2O6
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si DickiteAl2(Si2O5)(OH)4
SSulfur
S GalenaPbS
S BaryteBaSO4
S ChalcopyriteCuFeS2
S PyriteFeS2
S PyrrhotiteFe7S8
S SphaleriteZnS
S EpsomiteMgSO4 · 7H2O
S Bravoite(Fe,Ni)S2
S SiegeniteCoNi2S4
S MilleriteNiS
S BorniteCu5FeS4
S LinnaeiteCo2+Co23+S4
S MarcasiteFeS2
ClChlorine
Cl Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca AndraditeCa3Fe23+(SiO4)3
Ca DiopsideCaMgSi2O6
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca FluoriteCaF2
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
TiTitanium
Ti Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
FeIron
Fe MagnetiteFe2+Fe23+O4
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
Fe PyrrhotiteFe7S8
Fe Bravoite(Fe,Ni)S2
Fe Goethiteα-Fe3+O(OH)
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe AndraditeCa3Fe23+(SiO4)3
Fe BorniteCu5FeS4
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe HematiteFe2O3
Fe Hematite (var: Martite)Fe2O3
Fe MarcasiteFeS2
CoCobalt
Co SiegeniteCoNi2S4
Co LinnaeiteCo2+Co23+S4
NiNickel
Ni Bravoite(Fe,Ni)S2
Ni SiegeniteCoNi2S4
Ni MilleriteNiS
CuCopper
Cu ChalcopyriteCuFeS2
Cu MalachiteCu2(CO3)(OH)2
Cu BorniteCu5FeS4
ZnZinc
Zn SphaleriteZnS
Zn SmithsoniteZnCO3
BaBarium
Ba BaryteBaSO4
PbLead
Pb GalenaPbS
Pb CerussitePbCO3

Localities in this Region
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