WebMineralpedia Details for Paragonite Paragonite Formula NaAl2(Si3Al)O10(OH)2 Crystal System Monoclinic Crystal Habit Scaly, Massive - Fibrous Cleavage Perfect, None, None Luster Pearly Color white, yellow Streak white Class Monoclinic Hardness 2.5 WebMineral View Paragonite Mindat View Paragonite WebParagonite from Route 103 road cuts, Chester, Windsor Co., Vermont, United States. Silvery fine-grained mass of Paragonite with garnet and Staurolite. Paragonite is found in low to medium grade metamorphic environments. …
Paragonite - Wikipedia
WebAbout Paragonite Hide Formula: NaAl2(AlSi3O10) (OH)2 Colour: Colourless, pale yellow Hardness: 2½ Crystal System: Monoclinic Member of: Dioctahedral mica Group > Mica Group Name: Named in 1843 by Karl Emil Schafhäutl from the Greek, παραγειυ to mislead as the mineral looked like talc, but did not contain Mg. Type Locality: WebSericite is the name given to very fine, ragged grains and aggregates of white (colourless) micas, typically made of muscovite, illite, or paragonite. Sericite is produced by the alteration of orthoclase or plagioclase feldspars in areas that have been subjected to hydrothermal alteration (also see Sericitic alteration) typically associated with copper, tin, … nina moncrief barrister
Paragonite: Mineral information, data and localities.
WebParagonite with Kyanite #PD42105 Sold Add to Favorites Details Data Provenance Resources Sold Availability Sold Size 6 x 4.5 x 1.5 cm - Sm Cabinet Formula NaAl2(Si3Al)O10(OH)2 (RRUFF) Locality Pizzo Forno, Chironico Valley, Leventina, Ticino, Switzerland The blue is Kyanite of course and the yellowish micaceos matrix is the … Webparagonite, mica mineral similar to muscovite, a basic silicate of sodium and aluminum; a member of the common mica group. It was thought to be an uncommon mineral, but … WebFirst described in 1943 for an occurrence in Llandybie, Carmarthenshire, Wales, it was named for British geologist and mineralogist Alfred Brammall (1879–1954). Believed to be a degradation product of paragonite, like illite it is a non-expanding, clay -sized, micaceous mineral. Brammallite is a phyllosilicate or layered silicate. nina moser homburg