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Zirkel Mesa, Leucite Hills District, Sweetwater Co., Wyoming, USA

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Latitude & Longitude (WGS84): 41° 47' 30'' North , 108° 55' 32'' West
Latitude & Longitude (decimal): 41.79167,-108.92556
GeoHash:G#: 9x6t9rfy4
Locality type:Mesa
Köppen climate type:BSk : Cold semi-arid (steppe) climate


0.95 Ma old cinder cones and lava flows of diopside-sanidine-phlogopite lamproite (orendite). Vugs in some of the flows are filled with microcrystals of fluoro-potassicrichterite, apatite-(CaF), and shcherbakovite.

Part of the mesa is actually quarried for road gravel, and it is listed as a potassium deposit by the WGS.

REF:Deposit: WGS BULL. 50, 1966
Deposit: ALSO LOCATED AT T21N R101W W1-2
Commodities (Major) - Potassium
Development Status: Prospect

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


8 valid minerals. 1 (TL) - type locality of valid minerals. 1 erroneous literature entry.

Detailed Mineral List:

Fluorapatite
Formula: Ca5(PO4)3F
Reference: Mitchell R.H. (1990) Mineralogical Magazine 54: 645-646
Leucite
Formula: K(AlSi2O6)
Reference: Gunnar Färber
Noonkanbahite
Formula: BaKNaTi2(Si4O12)O2
Description: Initially described as shcherbakovite, but the chemical composition corresponds to the newly redefined noonkanbahite
Reference: Mitchell R.H. (1990) Mineralogical Magazine 54: 645-646
Oxyphlogopite
Formula: K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
Reference: Gunnar Färber
Potassic-fluoro-richterite
Formula: {K}{CaNa}{Mg5}(Si8O22)(F,OH)2
Reference: Mitchell R.H. (1990) Mineralogical Magazine 54: 645-646
Potassic-jeanlouisite (TL)
Formula: K(NaCa)(Mg4Ti)Si8O22O2
Reference: Oberti, R., Boiocchi, M., Hawthorne, F.C., Della Ventura, G., Färber, G. (2018): Potassic-jeanlouisite, IMA 2018-050. CNMNC Newsletter No. 45, October 2018, page xxx; Mineralogical Magazine: 82: xxx-xxx; http://forum.amiminerals.it/viewtopic.php?f=5&t=14984
Priderite
Formula: K(Ti4+7Fe3+)O16
Reference: Mitchell R.H. & Bergman S.C. (1991) Petrology of Lamproites, Plenum Press, New-York, 447 pp.
Sanidine
Formula: K(AlSi3O8)
Reference: Mitchell R.H. (1990) Mineralogical Magazine 54: 645-646
Shcherbakovite
Formula: (K,Ba)KNa(Ti,Nb)2(Si4O12)O2
Description: Initially described as shcherbakovite, but chemical composition corresponds to the newly redefined noonkanbahite
Reference: Mitchell R.H. (1990) Mineralogical Magazine 54: 645-646

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Priderite'4.DK.05bK(Ti4+7Fe3+)O16
Group 8 - Phosphates, Arsenates and Vanadates
'Fluorapatite'8.BN.05Ca5(PO4)3F
Group 9 - Silicates
'Leucite'9.GB.05K(AlSi2O6)
'Oxyphlogopite'9.EC.20K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
'Potassic-fluoro-richterite'9.DE.20{K}{CaNa}{Mg5}(Si8O22)(F,OH)2
'Sanidine'9.FA.30K(AlSi3O8)
'Shcherbakovite' ?9.DH.20(K,Ba)KNa(Ti,Nb)2(Si4O12)O2
Unclassified Minerals, Rocks, etc.
'Noonkanbahite'-BaKNaTi2(Si4O12)O2
'Potassic-jeanlouisite' (TL)-K(NaCa)(Mg4Ti)Si8O22O2

List of minerals arranged by Dana 8th Edition classification

Group 7 - MULTIPLE OXIDES
AB8X16
Priderite7.9.4.1K(Ti4+7Fe3+)O16
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=4
Shcherbakovite ?65.3.4.2(K,Ba)KNa(Ti,Nb)2(Si4O12)O2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Sanidine76.1.1.2K(AlSi3O8)
Al-Si Framework Feldspathoids and related species
Leucite76.2.2.1K(AlSi2O6)
Unclassified Minerals, Rocks, etc.
Noonkanbahite-BaKNaTi2(Si4O12)O2
Oxyphlogopite-K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
Potassic-fluoro-richterite-{K}{CaNa}{Mg5}(Si8O22)(F,OH)2
Potassic-jeanlouisite (TL)-K(NaCa)(Mg4Ti)Si8O22O2

List of minerals for each chemical element

HHydrogen
H Potassic-fluoro-richterite{K}{CaNa}{Mg5}(Si8O22)(F,OH)2
H Shcherbakovite(K,Ba)KNa(Ti,Nb)2(Si4O12)O2
OOxygen
O FluorapatiteCa5(PO4)3F
O LeuciteK(AlSi2O6)
O NoonkanbahiteBaKNaTi2(Si4O12)O2
O OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
O Potassic-fluoro-richterite{K}{CaNa}{Mg5}(Si8O22)(F,OH)2
O Potassic-jeanlouisiteK(NaCa)(Mg4Ti)Si8O22O2
O PrideriteK(Ti74+Fe3+)O16
O SanidineK(AlSi3O8)
O Shcherbakovite(K,Ba)KNa(Ti,Nb)2(Si4O12)O2
FFluorine
F FluorapatiteCa5(PO4)3F
F OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
F Potassic-fluoro-richterite{K}{CaNa}{Mg5}(Si8O22)(F,OH)2
NaSodium
Na NoonkanbahiteBaKNaTi2(Si4O12)O2
Na Potassic-fluoro-richterite{K}{CaNa}{Mg5}(Si8O22)(F,OH)2
Na Potassic-jeanlouisiteK(NaCa)(Mg4Ti)Si8O22O2
Na Shcherbakovite(K,Ba)KNa(Ti,Nb)2(Si4O12)O2
MgMagnesium
Mg OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
Mg Potassic-fluoro-richterite{K}{CaNa}{Mg5}(Si8O22)(F,OH)2
Mg Potassic-jeanlouisiteK(NaCa)(Mg4Ti)Si8O22O2
AlAluminium
Al LeuciteK(AlSi2O6)
Al OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
Al SanidineK(AlSi3O8)
SiSilicon
Si LeuciteK(AlSi2O6)
Si NoonkanbahiteBaKNaTi2(Si4O12)O2
Si OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
Si Potassic-fluoro-richterite{K}{CaNa}{Mg5}(Si8O22)(F,OH)2
Si Potassic-jeanlouisiteK(NaCa)(Mg4Ti)Si8O22O2
Si SanidineK(AlSi3O8)
Si Shcherbakovite(K,Ba)KNa(Ti,Nb)2(Si4O12)O2
PPhosphorus
P FluorapatiteCa5(PO4)3F
KPotassium
K LeuciteK(AlSi2O6)
K NoonkanbahiteBaKNaTi2(Si4O12)O2
K OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
K Potassic-fluoro-richterite{K}{CaNa}{Mg5}(Si8O22)(F,OH)2
K Potassic-jeanlouisiteK(NaCa)(Mg4Ti)Si8O22O2
K PrideriteK(Ti74+Fe3+)O16
K SanidineK(AlSi3O8)
K Shcherbakovite(K,Ba)KNa(Ti,Nb)2(Si4O12)O2
CaCalcium
Ca FluorapatiteCa5(PO4)3F
Ca Potassic-fluoro-richterite{K}{CaNa}{Mg5}(Si8O22)(F,OH)2
Ca Potassic-jeanlouisiteK(NaCa)(Mg4Ti)Si8O22O2
TiTitanium
Ti NoonkanbahiteBaKNaTi2(Si4O12)O2
Ti OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
Ti Potassic-jeanlouisiteK(NaCa)(Mg4Ti)Si8O22O2
Ti PrideriteK(Ti74+Fe3+)O16
Ti Shcherbakovite(K,Ba)KNa(Ti,Nb)2(Si4O12)O2
FeIron
Fe OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
Fe PrideriteK(Ti74+Fe3+)O16
BaBarium
Ba NoonkanbahiteBaKNaTi2(Si4O12)O2

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

Late Cretaceous
66 - 100.5 Ma



ID: 3023573
Mesaverde Group - Almond Formation

Age: Late Cretaceous (66 - 100.5 Ma)

Stratigraphic Name: Almond Formation

Description: Rock Springs uplift. White and brown soft sandstone, gray sandy shale, coal, and carbonaceous shale.

Comments: Original map source: Green, Gregory N., and Drouillard, Patricia H., 1994, The Digital Geologic Map of Wyoming in ARC/INFO Format: U.S. Geological Survey Open-File Report 94-0425, scale 1:500,000.

Lithology: Major:{sandstone,shale}, Minor:{coal}

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]

Cretaceous
66 - 145 Ma



ID: 3189188
Mesozoic sedimentary rocks

Age: Cretaceous (66 - 145 Ma)

Lithology: Sedimentary 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]

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)
Mitchell R.H. (1990), Mineralogical Magazine: 54: 645-646.
Mitchell R.H. & Bergman S.C. (1991), Petrology of Lamproites, Plenum Press, New-York, 447 pp.


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