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Potassic-hastingsite

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Formula:
{K}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
System:
Monoclinic
The hastingsite-group minerals are defined with 0,5 < A(Na+K+2Ca)<1.5 where Na or K is dominant and with the C position occupied by Mg or Fe2+ as dominant divalent ions and 0,5 < C(Al+Fe3+ +2Ti) < 1.5 where Fe3+ is dominant. W may contain (OH),F or Cl.

Potassic-hastingsite is defined with:

A position: K dominant
C position: Fe dominant divalent ion
W position: (OH) dominant

Classification of Potassic-hastingsite

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Crystallography of Potassic-hastingsite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m

Chemical Properties of Potassic-hastingsite

Formula:
{K}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Essential elements:
All elements listed in formula:

Relationship of Potassic-hastingsite to other Species

Other Members of Group:
Fluoro-hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)F2
Fluoro-magnesio-hastingsite{Na}{Ca2}{Mg4Fe3+}(Al2Si6O22)F2
Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Magnesio-hastingsite{Na}{Ca2}{Mg4Fe3+}(Al2Si6O22)(OH)2
Potassic-chloro-hastingsite{K}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(Cl,OH)2
Potassic-fluoro-hastingsite{K}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(F,OH)2
Potassic-magnesio-hastingsite{K}{Ca2}{Mg4Fe3+}(Al2Si6O22)(OH)2

Other Names for Potassic-hastingsite

Name in Other Languages:
Simplified Chinese:钾绿钙闪石

Other Information

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

References for Potassic-hastingsite

Reference List:
Mazdab, F.K. (2003): The diversity and occurrence of potassium-dominant amphiboles. Canadian Mineralogist, 41, 1329-1344

Zácek, V. (2007): Potassian hastingsite and potassichastingsite from garnet-hedenbergite skarn at Vlastejovice, Czech Republic. Neues Jahrbuch für Mineralogie - Abhandlungen, 184, 161-168.

Frank C. Hawthorne, Roberta Oberti, George E. Harlow, Walter V. Maresch, Robert F. Martin, John C. Schumacer, Mark D. Welch (2012): Nomenclature of the amphibole supergroup, American Mineralogist, Volume 97, pages 2031–2048

Internet Links for Potassic-hastingsite

Localities for Potassic-hastingsite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
China
 
  • Hunan Province
    • Chenzhou Prefecture
      • Guiyang Co.
        • Huangshaping Pb-Zn-polymetallic ore field
Yiming Zhao and Daxin Li (2003): Mineral Deposits 22(4), 345-359
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
      • Zruč nad Sázavou (Srutsch an der Sasau)
Zácek, V. (2007): Potassian hastingsite and potassichastingsite from garnet-hedenbergite skarn at Vlastejovice, Czech Republic. Neues Jahrbuch für Mineralogie - Abhandlungen, 184, 161-168.
Greenland
 
  • Sermersooq
    • Arsuk Fjord
      • Ivittuut (Ivigtut)
Specimens undergoing study at Roma Tre/Pavia Universities, Italy.
USA
 
  • New York
    • Orange Co.
      • Town of Monroe
        • Lake Mombasha
Lupulescu, Marian: Rocks& Min. -- May/June 2008
Mineral and/or Locality  
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