Definition of Perthite. Meaning of Perthite. Synonyms of Perthite

Here you will find one or more explanations in English for the word Perthite. Also in the bottom left of the page several parts of wikipedia pages related to the word Perthite and, of course, Perthite synonyms and on the right images related to the word Perthite.

Definition of Perthite

Perthite
Perthite Perth"ite, n. [So called from Perth, in canada.] (Min.) A kind of feldspar consisting of a laminated intertexture of albite and orthoclase, usually of different colors. -- Per*thit"ic, a.

Meaning of Perthite from wikipedia

- Perthite or perthitic texture is used to describe an intergrowth of two feldspars: a host grain of pot****ium-rich alkali feldspar (near K-feldspar, KAlSi3O8...
- Sanidine is stable at the highest temperatures, and microcline at the lowest. Perthite is a typical texture in alkali feldspar, due to exsolution of contrasting...
- charnockite series, consisting essentially of quartz, antiperthite (or perthite), orthopyroxene (usually hypersthene) and magnetite, and is equivalent...
- Pahangite (also "Pahangese") Patna → Patnaites Penang → Penangite Perth → Perthites (also "Perthian" and "Perthling") Pullman → Pullmanites Putney → Putneyites...
- "Dalmatian jasper" – not a jasper at all but a form of the igneous rock perthite. The black spots are composed of the rare amphibole arfvedsonite (and not...
- commonly represented by orthoclase and the exsolved lamellar albite, form perthite. In some rocks the potash feldspar, in others the soda feldspar predominates...
- Papagoite Pargasite Parisite Pectolite Larimar Pentlandite Peridot Periclase Perthite Petalite (castorite) Pezzottaite Phenakite Phlogopite Phosgenite Phosphophyllite...
- feldspars. The feldspar has partly unmixed on the micro-scale to form a perthite, and the presence of the alternating alkali feldspar and plagioclase layers...
- with pot****ium. The resulting intergrowth of the two feldspars is called perthite. The higher-temperature polymorph of KAlSi3O8 is sanidine. Sanidine is...
- composition alkali feldspars are allowed to cool slowly, exsolution occurs and a perthite structure results. Anorthoclase occurs in high temperature sodium rich...