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Hexagonite

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Formula:
☐{Ca2}{Mg5}(Si8O22)(OH)2
A variety of Tremolite

Supposedly a hexagonal form of tremolite, but shown to be monoclinic. A manganoan variety distinguished by its pale lilac to purplish color.

Originally reported from Edwards, Balmat-Edwards Zinc District, St Lawrence Co., New York, USA.

Visit gemdat.org for gemological information about Hexagonite.


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Classification of HexagoniteHide

Notes:
Rejected by the IMA

Pronounciation of HexagoniteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Chemical Properties of HexagoniteHide

Formula:
☐{Ca2}{Mg5}(Si8O22)(OH)2

Other Language Names for HexagoniteHide

German:Hexagonit
Spanish:Hexagonita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Violan1 photo of Hexagonite associated with Violan on mindat.org.

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 HexagoniteHide

Localities for HexagoniteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
USA
 
  • New York
    • Lewis Co.
      • Diana Township
    • St. Lawrence Co.
Jensen (1978) Minerals of New York State, p.46
James Dwight Dana (1896) Manual of Mineralogy and Petrography:
      • Fowler
Canadian Mineralogist Vol. 22, pp. 327-331 (1984); American Mineralogist (1968) 53:751-769
[www.johnbetts-fineminerals.com]; Rocks & Minerals 82:472-483
Rocks & Min.:12:8.
      • Fullerville
Rocks & Minerals 82:472-483
      • Talcville
George Robinson & Steven Chamberlain (2007) Gazetteer of major New York State mineral localities. Rocks & Minerals, 82, #6, 472-483.; George Robinson & Steven Chamberlain (2007) Gazetteer of major New York State mineral localities. Rocks & Minerals, 82, #6, 472-483.; American Mineralogist 44:877-878
Mineral and/or Locality  
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