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Winnett sill, Petroleum County, Montana, USAi
Regional Level Types
Winnett sillSill
Petroleum CountyCounty
MontanaState
USACountry

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Latitude & Longitude (WGS84):
47° North , 108° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~57km
GRN:
N32W54
Type:
Sill
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Mindat Locality ID:
240676
Long-form identifier:
mindat:1:2:240676:6
GUID (UUID V4):
0


A black alkaline igneous sill cutting the Colorado Shale. Located about 18 km west of Winnett; Sec.6, T 14 N, R 25 E.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


6 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
Group 8 - Phosphates, Arsenates and Vanadates
ⓘFluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
ⓘHaüyne9.FB.10Na3Ca(Si3Al3)O12(SO4)
Unclassified
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Melilite Group'-Ca2M(XSiO7)

List of minerals for each chemical element

HHydrogen
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
OOxygen
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ FluorapatiteCa5(PO4)3F
Oⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ Fayalite-Forsterite Series
Oⓘ Melilite GroupCa2M(XSiO7)
FFluorine
Fⓘ FluorapatiteCa5(PO4)3F
NaSodium
Naⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Naⓘ NephelineNa3K(Al4Si4O16)
MgMagnesium
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Alⓘ NephelineNa3K(Al4Si4O16)
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
SiSilicon
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ Fayalite-Forsterite Series
Siⓘ Melilite GroupCa2M(XSiO7)
PPhosphorus
Pⓘ FluorapatiteCa5(PO4)3F
SSulfur
Sⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
KPotassium
Kⓘ NephelineNa3K(Al4Si4O16)
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ FluorapatiteCa5(PO4)3F
Caⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Caⓘ Melilite GroupCa2M(XSiO7)
FeIron
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Fayalite-Forsterite Series

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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