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Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Plumasite

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About PlumasiteHide

Name:
Named after Plumas County, California, USA, where it occurs.
A rock comprised of oligoclase and corundum.


Unique IdentifiersHide

Mindat ID:
40119
Long-form identifier:
mindat:1:1:40119:9

Similar NamesHide

PlumalsitePb4Al2(SiO3)7
PlumositeA valid IMA mineral species - grandfathered - questionablePb2Sb2S5

Common AssociatesHide

Associations Based on Photo Data:
1 photo of Plumasite associated with CorundumAl2O3

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for PlumasiteHide

References for PlumasiteHide

Localities for PlumasiteHide

Showing 10 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Austria
 
  • Lower Austria
    • Horn District
      • Drosendorf-Zissersdorf
www.uibk.ac.at (n.d.)
    • Krems-Land District
      • Albrechtsberg an der Großen Krems
Fechner et al. (1985)
Greece
 
  • South Aegean
    • Naxos
      • Naxos Island
Karantoni et al. (2021)
Italy
 
  • Piedmont
    • Vercelli Province
      • Vocca
Rossi (1968) +1 other reference
South Africa
 
  • Limpopo
    • Capricorn District Municipality
      • Blouberg Local Municipality
Coetzee (1976)
    • Vhembe District Municipality
      • Makhado Local Municipality
        • Bandelierkop
Coetzee (1976)
Coetzee (1976)
        • Louis Trichardt
Don Windler specimen photo ID 1064484 +1 other reference
Coetzee (1976)
USA
 
  • California
    • Plumas County
      • Edmanton Mining District (Meadow Valley Mining District)
        • Spanish Peak
Lawson (1903)
 
and/or  
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