Actinolite
111Лучистый камень — Актинолит Огранённый актинолит из Бразилии Формула Ca2(Mg,Fe)5Si8O22(OH)2 Сингония Моноклинная Цвет От серовато зелёного до тёмно зелёного Цв …
112asbestos — asbestine /as bes tin, az /, asbestous, adj. asbestoid, asbestoidal, adj. /as bes teuhs, az /, n. 1. Mineral. a fibrous mineral, either amphibole or chrysotile, formerly used for making incombustible or fireproof articles. 2. a fabric woven from… …
113diabase — diabasic, adj. /duy euh bays /, n. Petrol. 1. a fine grained gabbro occurring as minor intrusions. 2. Brit. a dark igneous rock consisting essentially of augite and feldspar; an altered dolerite. [1810 20; < F, equiv. to dia (error for di two) +… …
114greenschist — /green shist /, n. Petrol. schist colored green by an abundance of chlorite, epidote, or actinolite. Cf. greenstone. [GREEN + SCHIST] * * * …
115marble — marbler, n. /mahr beuhl/, n., adj., v., marbled, marbling. n. 1. metamorphosed limestone, consisting chiefly of recrystallized calcite or dolomite, capable of taking a high polish, occurring in a wide range of colors and variegations and used in… …
116Marble — /mahr beuhl/, n. Alice, 1913 90, U.S. tennis player. * * * Granular limestone or dolomite that has recrystallized under the influence of heat, pressure, and aqueous solutions. The main mineral in marble is calcite. Commercially, marble includes… …
117pyroxene — pyroxenic /puy rok sen ik/, adj. /puy rok seen, peuh , puy rok seen /, n. any of a very common group of minerals of many varieties, silicates of magnesium, iron, calcium, and other elements, occurring as important constituents of many kinds of… …
118Precambrian time — Interval of geologic time from с 3. 8 billion years ago, the age of the oldest known rocks, to 544 million years ago, the beginning of the Cambrian Period. This interval represents more than 80% of the geologic record and thus provides important… …
119Common minerals of metamorphic rocks — ▪ Table Common minerals of metamorphic rocks mineral actinolite adularia** *albite andalusite** anorthite anthophyllite aragonite** *biotite *calcite** *chlorite chloritoid cordierite diopside *dolomite enstatite *epidote forsterite *garnet… …
120Common metamorphic minerals as a function of pressure, temperature, and protolith composition — ▪ Table Common metamorphic minerals as a function of pressure, temperature, and protolith composition* protolith high P/low T medium P and T low P/high T shale, mudstone (pelitic) paragonite, muscovite muscovite, paragonite muscovite kyanite… …
