Amphibole (/ˈæmfəboʊl/ AM-fə-bohl) is a group of inosilicate minerals, forming prism or needlelike crystals, composed of double chain SiO 4 tetrahedra...

in the amphibole group was banned in much of the Western world by the mid-1980s, and in Japan by 1995. Some products that included amphibole types of...

appearance from the parallel intergrowth of quartz crystals and altered amphibole fibres that have mostly turned into limonite. Tiger iron is an altered...

Cummingtonite (/ˈkʌmɪŋtənaɪt/ KUM-ing-tə-nyte) is a metamorphic amphibole with the chemical composition (Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2, magnesium...

Amphibolite (/æmˈfɪbəlaɪt/) is a metamorphic rock that contains amphibole, especially hornblende and actinolite, as well as plagioclase feldspar, but...

quartz and alkali feldspar. Most granitic rocks also contain mica or amphibole minerals, though a few (known as leucogranites) contain almost no dark...

but the name is used as a general or field term, to refer to a dark amphibole. Hornblende minerals are common in igneous and metamorphic rocks. The...

Riebeckite is a sodium-rich member of the amphibole group of silicate minerals, chemical formula Na2(Fe2+3Fe3+2)Si8O22(OH)2. It forms a solid solution...

southern edge of the range. To the north of these are Ropebreak Pass, Amphibole Peak, Mount Baker, Polaris Peak, Mount Roth. Mount Justman and Olliver...

species of amphibole, although variations, as in the pyroxenes, most commonly involve mixtures of Ca2+, Fe2+ and Mg2+. Several amphibole mineral species...

silicate mineral names: nephrite (a silicate of calcium and magnesium in the amphibole group of minerals), or jadeite (a silicate of sodium and aluminum in the...

structure and composed of chemically similar elements. For example, the amphibole group consists of 15 or more mineral species, most of them with the general...

Amarantite Amblygonite Ameghinite Amesite Amicite Aminoffite Ammineite Amphibole (mineral group) Analcime (analcite) Anandite Anapaite Anatase Ancylite...

phlogopite (2 wt% H2O) and amphibole (2 wt% H2O). Phlogopite does not release water until approximately 200 km depth whereas amphibole releases water at approximately...

resorption shape. The reaction rim constituted by amphibole and/or biotite is commonly observed. The amphibole is of high alkali, such as alkaline hornblende...

common minerals include quartz, orthoclase, talc, carbonate minerals and amphibole (actinolite). Greenschist is a general field petrologic term for metamorphic...

Basalt Igneous rock Composition Primary Mafic: plagioclase, amphibole, and pyroxene Secondary Sometimes feldspathoids or olivine...

(/ˈɑːrvɛdsənaɪt/) or soda hornblende (partiellement obsolète) is a sodium amphibole mineral with composition: [Na][Na2][(Fe2+)4Fe3+][(OH)2|Si8O22]. It crystallizes...

[Na-Ca-amphibole: IMA2015-096, IMA2012 s.p., fluor-magnesiokatophorite (2006) Rd] 9.DE.20 [151] [no] [no] Ferri-fluoro-leakeite [Na-amphibole: IMA2012...

ultrapotassic mafic igneous rocks which have primary mineralogy consisting of amphibole or biotite, and with feldspar in the groundmass. Lamprophyres are not...

Wollastonite – CaSiO3 Rhodonite – MnSiO3 Pectolite – NaCa2(Si3O8)(OH) Amphibole group Anthophyllite – (Mg,Fe)7Si8O22(OH)2 Cummingtonite series Cummingtonite...

t e Minerals Overview Mineral List Mineralogy History Common minerals Amphibole Bridgmanite K-feldspar Mica Olivine Plagioclase Pyroxene Quartz Spinel...

Tremolite is a member of the amphibole group of silicate minerals with composition Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2. Tremolite forms by metamorphism...

Glaucophane is the name of a mineral and a mineral group belonging to the sodic amphibole supergroup of the double chain inosilicates, with the chemical formula...

phyllosilicates; as such, it is distinct from other asbestiform minerals in the amphibole group. Its idealized chemical formula is Mg3(Si2O5)(OH)4. The material...

of the rock. Feldspars, quartz or feldspathoids, olivines, pyroxenes, amphiboles, and micas are all important minerals in the formation of almost all igneous...

City's Central Park Talc-scist from Saint-Marcel, Valle d'Aosta, Italy Amphibole epidote schist with slickensides from Benguet, Philippines, showing epidote...

Series (Felsic minerals) High Olivine Plagioclase (Calcium rich) Pyroxene Amphibole Biotite (Black Mica) Plagioclase (Sodium rich) Relative Crystallization...

iron and magnesium tends to manifest as a darker groundmass, including amphibole or pyroxene phenocrysts. Mafic or basaltic magmas have a silica content...

[Ca-amphibole: IMA2012 s.p., chloro-potassichastingsite (IMA2005-007)] 9.DE.15 [807] [808] [no] Potassic-chloro-pargasite [Ca-amphibole: IMA2012...