tremolite-actinolite

ID: skos/Commodity/MIN4EU/tremoliteActinolite

Item class: Concept

Label (en): tremolite-actinolite

Label (hu):

Definition (en): 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 of sediments rich in dolomite and quartz. Tremolite forms a series with actinolite and ferro-actinolite. Pure magnesium tremolite is creamy white, but the color grades to dark green with increasing iron content. It has a hardness on Mohs scale of 5 to 6. Nephrite, one of the two minerals of the gemstone jade, is a green variety of tremolite - http://en.wikipedia.org/wiki/Tremolite

Definition (hu):

Concept scheme: Commodity

Broader concept: MIN4EU list of commodities