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Orthoclase from
Itrongay (Itrongahy), Mahasoa Est Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar

Classification
Species:Orthoclase
Formula:K(AlSi3O8)
Comments:Gemmy facetable crystals. All are Sanidine.
Habit:prismatic
Colour:Yellow
Quality for species:Excellent - world class for species or very significant. (!!)
Confirmation
Validity:Erroneously Reported
References
References:Ungemach, M.H. (1916) Contribution à la Minéralogie de Madagascar. Bulletin de la Société française de minéralogie 39: 5-38; [Madagascar - extraLapis English Vol 1 p.30]
http://www.mindat.org/mesg-7-219075.html
Data
Mineral Data:Click here to view Orthoclase data
Locality Data:Click here to view Itrongay (Itrongahy), Mahasoa Est Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Mineral and/or Locality  
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