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Sloan diatremes, State Line Kimberlite Mining District, Larimer Co., Colorado, USAi
Regional Level Types
Sloan diatremes- not defined -
State Line Kimberlite Mining DistrictMining District
Larimer Co.County
ColoradoState
USACountry

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Key
Latitude & Longitude (WGS84):
40° 52' 22'' North , 105° 33' 32'' West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~0km
Köppen climate type:



Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

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

18 valid minerals.

Detailed Mineral List:

Antigorite
Formula: Mg3(Si2O5)(OH)4
Reference: Minerals of Colorado (1997) Eckel, E. B.
Aragonite
Formula: CaCO3
Reference: Minerals of Colorado (1997) Eckel, E. B.
Baryte
Formula: BaSO4
Reference: Minerals of Colorado (1997) Eckel, E. B.
Calcite
Formula: CaCO3
Reference: Minerals of Colorado (1997) Eckel, E. B.
Chromite
Formula: Fe2+Cr3+2O4
Reference: Minerals of Colorado (1997) Eckel, E. B.
Chrysotile
Formula: Mg3(Si2O5)(OH)4
Reference: Minerals of Colorado (1997) E.B. Eckel
Diamond
Formula: C
Reference: Meyer, H.O.A. and McCallum, M.E. (1986) Mineral inclusions in diamonds from the Sloan kimberlites, Colorado. Journal of Geology: 94: 600-612.
Diopside
Formula: CaMgSi2O6
Reference: Minerals of Colorado (1997) Eckels, E. B.
Diopside var: Chromian Diopside
Formula: Ca(Mg,Cr)Si2O6
Reference: Minerals of Colorado (1997) Eckel, E. B.
Enstatite
Formula: MgSiO3
Reference: Minerals of Colorado (1997) Eckel, E. B.
'Fayalite-Forsterite Series'
Reference: Minerals of Colorado (1997) Eckel, E. B.
Graphite
Formula: C
Reference: Econ Geol (1992) 87:2175-2179
Ilmenite
Formula: Fe2+TiO3
Reference: Minerals of Colorado (1997) Eckel, E. B.
Leucoxene
Reference: Minerals of Colorado (1997) E.B. Eckel
Lizardite
Formula: Mg3(Si2O5)(OH)4
Reference: Minerals of Colorado (1997) E.B. Eckel
Perovskite
Formula: CaTiO3
Reference: Minerals of Colorado (1997) E.B. Eckel
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: Minerals of Colorado (1997) E.B. Eckel
Pyrope
Formula: Mg3Al2(SiO4)3
Reference: [MinRec 13:207]
Spinel
Formula: MgAl2O4
Reference: Minerals of Colorado (1997) E.B. Eckel
Vesuvianite
Formula: (Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Reference: Minerals of Colorado (1997) E.B. Eckel

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Diamond1.CB.10aC
Graphite1.CB.05aC
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Ilmenite4.CB.05Fe2+TiO3
Perovskite4.CC.30CaTiO3
Spinel4.BB.05MgAl2O4
Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Group 9 - Silicates
Antigorite9.ED.15Mg3(Si2O5)(OH)4
Chrysotile9.ED.15Mg3(Si2O5)(OH)4
Diopside9.DA.15CaMgSi2O6
var: Chromian Diopside9.DA.15Ca(Mg,Cr)Si2O6
Enstatite9.DA.05MgSiO3
Lizardite9.ED.15Mg3(Si2O5)(OH)4
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Pyrope9.AD.25Mg3Al2(SiO4)3
Vesuvianite9.BG.35(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Unclassified Minerals, Rocks, etc.
'Fayalite-Forsterite Series'-
Leucoxene-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Diamond1.3.6.1C
Graphite1.3.6.2C
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
Perovskite4.3.3.1CaTiO3
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Spinel7.2.1.1MgAl2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Pyrope51.4.3a.1Mg3Al2(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)
Vesuvianite58.2.4.1(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Enstatite65.1.2.1MgSiO3
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Antigorite71.1.2a.1Mg3(Si2O5)(OH)4
Chrysotile71.1.5.1Mg3(Si2O5)(OH)4
Lizardite71.1.2b.2Mg3(Si2O5)(OH)4
Sheets of 6-membered rings with 2:1 layers
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Mixtures, etc.
Aragonite-CaCO3
Diopside
var: Chromian Diopside
-Ca(Mg,Cr)Si2O6
'Fayalite-Forsterite Series'-
Leucoxene-

List of minerals for each chemical element

HHydrogen
H PhlogopiteKMg3(AlSi3O10)(OH)2
H AntigoriteMg3(Si2O5)(OH)4
H LizarditeMg3(Si2O5)(OH)4
H ChrysotileMg3(Si2O5)(OH)4
H Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
BBoron
B Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
CCarbon
C DiamondC
C AragoniteCaCO3
C CalciteCaCO3
C GraphiteC
OOxygen
O PyropeMg3Al2(SiO4)3
O Diopside (var: Chromian Diopside)Ca(Mg,Cr)Si2O6
O PhlogopiteKMg3(AlSi3O10)(OH)2
O AntigoriteMg3(Si2O5)(OH)4
O EnstatiteMgSiO3
O AragoniteCaCO3
O ChromiteFe2+Cr23+O4
O DiopsideCaMgSi2O6
O BaryteBaSO4
O CalciteCaCO3
O IlmeniteFe2+TiO3
O LizarditeMg3(Si2O5)(OH)4
O ChrysotileMg3(Si2O5)(OH)4
O PerovskiteCaTiO3
O SpinelMgAl2O4
O Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
FFluorine
F Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
NaSodium
Na Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
MgMagnesium
Mg PyropeMg3Al2(SiO4)3
Mg Diopside (var: Chromian Diopside)Ca(Mg,Cr)Si2O6
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg AntigoriteMg3(Si2O5)(OH)4
Mg EnstatiteMgSiO3
Mg DiopsideCaMgSi2O6
Mg LizarditeMg3(Si2O5)(OH)4
Mg ChrysotileMg3(Si2O5)(OH)4
Mg SpinelMgAl2O4
Mg Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
AlAluminium
Al PyropeMg3Al2(SiO4)3
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al SpinelMgAl2O4
Al Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
SiSilicon
Si PyropeMg3Al2(SiO4)3
Si Diopside (var: Chromian Diopside)Ca(Mg,Cr)Si2O6
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si AntigoriteMg3(Si2O5)(OH)4
Si EnstatiteMgSiO3
Si DiopsideCaMgSi2O6
Si LizarditeMg3(Si2O5)(OH)4
Si ChrysotileMg3(Si2O5)(OH)4
Si Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
SSulfur
S BaryteBaSO4
KPotassium
K PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Ca Diopside (var: Chromian Diopside)Ca(Mg,Cr)Si2O6
Ca AragoniteCaCO3
Ca DiopsideCaMgSi2O6
Ca CalciteCaCO3
Ca PerovskiteCaTiO3
Ca Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
TiTitanium
Ti IlmeniteFe2+TiO3
Ti PerovskiteCaTiO3
CrChromium
Cr Diopside (var: Chromian Diopside)Ca(Mg,Cr)Si2O6
Cr ChromiteFe2+Cr23+O4
FeIron
Fe ChromiteFe2+Cr23+O4
Fe IlmeniteFe2+TiO3
Fe Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
BaBarium
Ba BaryteBaSO4

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Collins, D.S. (1982) Diamond collecting in Northern Colorado. Mineralogical Record 13: 205-208.
Meyer, H.O.A. and McCallum, M.E. (1986) Mineral inclusions in diamonds from the Sloan kimberlites, Colorado. Journal of Geology: 94: 600-612.
Otter, M.L. and Gurney, J.J. (1989) Mineral inclusions in diamonds from the Sloan diatreme, Colorado-Wyoming State Line kimberlite district, North America. In Kimberlite and Related Rocks, Volume 2: Their Mantle/Crust Setting, Diamonds and Diamond Exploration; Geological Society of Australia, Special Publication, 14, 1042-1053. Blackwell Scientific, Cambridge, England.

Localities in this Region

  • Colorado
    • Larimer Co.
      • State Line Kimberlite Mining District

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.
 
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