Prehnite is an inosilicate of calcium and aluminium with the formula: Ca2Al(AlSi3O10)(OH)2 with limited Fe3+ substitutes for aluminium in the structure...

The prehnite-pumpellyite facies is a metamorphic facies typical of subseafloor alteration of the oceanic crust around mid-ocean ridge spreading centres...

quartz The prehnite-pumpellyite facies is a little higher in pressure and temperature than the zeolite facies. It is named for the minerals prehnite (a Ca-Al-phyllosilicate)...

through the zeolite, prehnite-pumpellyite, blueschist, and eclogite facies stability zones of subducted oceanic crust. Zeolite and prehnite-pumpellyite facies...

Piemontite Pietersite Plumbogummite Pollucite Polyhalite Poudretteite Powellite Prehnite Prismatine Prosopite Proustite Psilomelane Pumpellyite Chlorastrolite (var...

initially undergoes low-grade metamorphism to metabasalt of the zeolite and prehnite-pumpellyite facies, but as the basalt subducts to greater depths, it is...

of beryllium Zircon, a mineral belonging to the group of nesosilicates Prehnite, an inosilicate of calcium and aluminium Tourmaline, a crystalline boron...

60% 202 168 47 H090L70C60 Catkin Yellow 90° 70% 70% 204 168 0 H090L70C70 Prehnite Yellow 90° 70% 80% 208 167 0 H090L70C80 Light Beige 90° 80% 10% 207 197...

Eclogite Blueschist Greenschist Prehnite- Pumpellyite Zeolite Granulite Amphibolite Hornfels Sanidinite P (kbar) T (°C) 0 100 200 300 400 500 600 700 800...

and diabase and in serpentinites in association with zeolites, datolite, prehnite, calcite and serpentine. It is found in a wide variety of worldwide locations...

7)•(OH) 2H 2O. Chlorastrolite was once thought to be an impure variety of prehnite or thomsonite. Chlorastrolite occurs as amygdaloid structures and fracture...

babingtonite with prehnite, from Qiaojia, Qiaojia Co., Zhaotong, Yunnan, China Black babingtonite which covers a matrix of botryoidal, green prehnite, and a large...

that govern the development of aluminous mineral assemblages from the prehnite-pumpellyite facies to the granulite facies, as well as the blueschist facies...

igneous rocks. It also occurs as cavity and vesicle fillings associated with prehnite, calcite, and zeolites. Analcime forms in sedimentary rocks at temperatures...

diagenetic processes which turn sediments into sedimentary rocks, and prehnite-pumpellyite facies, which is a hallmark of subseafloor alteration of the...

indicator mineral of the prehnite-pumpellyite metamorphic facies. It is associated with chlorite, epidote, quartz, calcite and prehnite. It was first described...

River valley and Arendal, Aust-Agder, Norway. Associated minerals include prehnite, danburite, babingtonite, epidote, native copper, calcite, quartz and zeolites...

Eclogite Blueschist Greenschist Prehnite- Pumpellyite Zeolite Granulite Amphibolite Hornfels Sanidinite P (kbar) T (°C) 0 100 200 300 400 500 600 700 800...

pore spaces formed by vesicles and fractures within the volcanic rocks. Prehnite and agate amygdules are also plentiful island gemstones.: 55, 58–61  Recreational...

remarkable mineral deposits such as byssolite, tremolite or prehnite. Byssolite Tremolite Prehnite The Aure et Saint-Girons ~ or Auroise ~ is a breed of cattle...

contain nepheline or leucite, are often rich in zeolites, such as analcite, prehnite, natrolite, scolecite, chabazite, heulandite, etc. Ultramafic tuffs are...

Triclinic crystals of babingtonite with prehnite, from Qiaojia, China...

facies included are: BS = Blueschist facies, EC = Eclogite facies, PP = Prehnite-Pumpellyite facies, GS = Greenschist facies, EA = Epidote-Amphibolite facies...

mine. Although primarily a copper mine, the Champion Mine also contained prehnite and chalcocite deposits. The Champion Mine looking south. “B” Shaft in...

Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616. "Prehnit (Prehnite)". Mineralienatlas.de. "Perovskite". Webmineral. Anthony, John W.; Bideaux...

include igneous basalt rocks, iron ores (magnetite and hematite), silicates (prehnite, zeolite), apatites, perovskites and highly saturated copper and nickel...

center of a specimen collected at Houdaille which has a small crystal of chalcopyrite at the base. The crystals are sitting on a green prehnite matrix....

Polydymite Polyhalite Portlandite Posnjakite Poudretteite Povondraite Powellite Prehnite Proustite Pseudobrookite Pseudomalachite Pseudowollastonite Pumpellyite...

opaque white spherical inclusions within nodules of translucent green prehnite from Wave Hill, Northern Territory, Australia. Natrolite from the plateau...

greenschist. Lower temperatures are transitional with and overlap the prehnite-pumpellyite facies and higher temperatures overlap with and include sub-amphibolite...