Definition of Perthites. Meaning of Perthites. Synonyms of Perthites

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

Definition of Perthites

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 Perthites from wikipedia

- varieties of pot****ium feldspar, amazonite and moonstone are variant colored perthites. Le Maitre R.W.; Streckeisen A.; Zanettin B.; Le Bas M.J.; Bonin B.; Bateman...
- Pahangite (also "Pahangese") Patna → Patnaites Penang → Penangite Perth → Perthites (also "Perthian" and "Perthling") Pullman → Pullmanites Putney → Putneyites...
- 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...
- occurs as fine parallel segregations alternating with pink microcline in perthite as a result of exolution on cooling. There are two variants of albite,...
- with pot****ium. The resulting intergrowth of the two feldspars is called perthite. The higher-temperature polymorph of KAlSi3O8 is sanidine. Sanidine is...
- 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...
- M. (1997). "Crystallographic Controls on the Alteration of Microcline Perthites from the Spruce Pine District, North Carolina". Clays and Clay Minerals...
- of plagioclase (lamellae) are present in pot****ium feldspar, is called perthite. The solid solution between anorthite and albite remains stable to lower...
- known as hypersthene). The alkali feldspars in the group are generally perthites, with intergrowths of albite and orthoclase or microcline, while the plagioclases...
- "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...