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Ferri-holmquistite

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Formula:
☐{Li2}{Mg3Fe3+2}(Si8O22)(OH)2
The holmquistite group are orthorhombic amphiboles in the lithium amphibole subgroup.

Holmquistite is defined with Mg>Fe2+ and Fe3+ >Alin the C position
This page provides mineralogical data about Ferri-holmquistite.


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Classification of Ferri-holmquistiteHide

Notes:
Intermediate member of a solid-solution series

Chemical Properties of Ferri-holmquistiteHide

Formula:
☐{Li2}{Mg3Fe3+2}(Si8O22)(OH)2

The holmquistite group are orthorhombic amphiboles in the lithium amphibole subgroup.

Holmquistite is defined with Mg>Fe2+ and Fe3+ >Alin the C position

Relationship of Ferri-holmquistite to other SpeciesHide

Other Members of this group:
Ferro-ferri-holmquistite☐{Li2}{Fe2+3Fe3+2}(Si8O22)(OH)2
Ferro-holmquistite☐{Li2}{Fe2+3Al2}(Si8O22)(OH)2Orth.
Holmquistite☐{Li2}{Mg3Al2}(Si8O22)(OH)2Orth.

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.

References for Ferri-holmquistiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Hawthorne, F.C., Oberti, R., Harlow, G.E., Maresch, W.V., Martin, R.F., Schumacher, J.C., Welch, M.D. (2012) Nomenclature of the amphibole supergroup. American Mineralogist: 97: 2031-2048.

Internet Links for Ferri-holmquistiteHide

Mineral and/or Locality  
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