Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat Articles
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

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

This page is currently not sponsored. Click here to sponsor this page.
Lock Map
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:

Formula: Ca5(PO4)3F
Reference: Mitchell R.H. (1990) Mineralogical Magazine 54: 645-646
Formula: K(AlSi2O6)
Reference: Gunnar Färber
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
Formula: K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
Reference: Gunnar Färber
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
Formula: K(Ti4+7Fe3+)O16
Reference: Mitchell R.H. & Bergman S.C. (1991) Petrology of Lamproites, Plenum Press, New-York, 447 pp.
Formula: K(AlSi3O8)
Reference: Mitchell R.H. (1990) Mineralogical Magazine 54: 645-646
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
Group 8 - Phosphates, Arsenates and Vanadates
Group 9 - Silicates
'Shcherbakovite' ?9.DH.20(K,Ba)KNa(Ti,Nb)2(Si4O12)O2
Unclassified Minerals, Rocks, etc.
'Potassic-jeanlouisite' (TL)-K(NaCa)(Mg4Ti)Si8O22O2

List of minerals arranged by Dana 8th Edition classification

Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=4
Shcherbakovite ?,Ba)KNa(Ti,Nb)2(Si4O12)O2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Al-Si Framework Feldspathoids and related species
Unclassified Minerals, Rocks, etc.
Potassic-jeanlouisite (TL)-K(NaCa)(Mg4Ti)Si8O22O2

List of minerals for each chemical element

H Potassic-fluoro-richterite{K}{CaNa}{Mg5}(Si8O22)(F,OH)2
H Shcherbakovite(K,Ba)KNa(Ti,Nb)2(Si4O12)O2
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
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
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
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
Al LeuciteK(AlSi2O6)
Al OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
Al SanidineK(AlSi3O8)
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
P FluorapatiteCa5(PO4)3F
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
Ca FluorapatiteCa5(PO4)3F
Ca Potassic-fluoro-richterite{K}{CaNa}{Mg5}(Si8O22)(F,OH)2
Ca Potassic-jeanlouisiteK(NaCa)(Mg4Ti)Si8O22O2
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
Fe OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
Fe PrideriteK(Ti74+Fe3+)O16
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]

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


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.

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.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: June 25, 2019 19:41:33 Page generated: October 28, 2018 09:58:58
Go to top of page