Perthite - MineralsPerthite is an intergrowth of two different Feldspar minerals in one rock. Perthite is usually composed of veins or stripes of one feldspar running through a.perthite crusher mesin quarry,Perthite - Smith CollegePerthite. Property. Value. Comments. Formula, (K, Na)AlSi3O8, K-feldspar (KAlSi3O8) with albite (NaAlSi3O8) intergrowth. Crystal System, Not applicable.Flame perthite in metapelitic gneisses at Cooma, SE AustraliaINTRODUCTION. This paper is concerned with the occurrence of flame perthite in high-grade metapelitic gneisses in the Cooma Complex, south-.
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