rhombohedrons

См. также в других словарях:

• rhombohedrons — rhom·bo·he·dron || ‚rÉ‘mbəʊ hedrÉ™n , hɪː /‚rÉ’m n. polyhedron whose faces are six equal rhombuses …   English contemporary dictionary

• Dioptase — from Altyn Tübe, Kazakhstan, the type locality General Category Silicate mineral …   Wikipedia

• calcite — calcitic /kal sit ik/, adj. /kal suyt/, n. one of the commonest minerals, calcium carbonate, CaCO3, found in a great variety of crystalline forms: a major constituent of limestone, marble, and chalk; calc spar. [1840 50; CALC + ITE1] * * * Most… …   Universalium

• Bismuth — Bis muth, n. [Ger. bismuth, wismuth: cf. F. bismuth.] (Chem.) One of the elements; a metal of a reddish white color, crystallizing in rhombohedrons. It is somewhat harder than lead, and rather brittle; masses show broad cleavage surfaces when… …   The Collaborative International Dictionary of English

• Bismuth glance — Bismuth Bis muth, n. [Ger. bismuth, wismuth: cf. F. bismuth.] (Chem.) One of the elements; a metal of a reddish white color, crystallizing in rhombohedrons. It is somewhat harder than lead, and rather brittle; masses show broad cleavage surfaces… …   The Collaborative International Dictionary of English

• Bismuth ocher — Bismuth Bis muth, n. [Ger. bismuth, wismuth: cf. F. bismuth.] (Chem.) One of the elements; a metal of a reddish white color, crystallizing in rhombohedrons. It is somewhat harder than lead, and rather brittle; masses show broad cleavage surfaces… …   The Collaborative International Dictionary of English

• Magnesite — General Category Carbonate mineral Chemical formula MgCO3 …   Wikipedia

• Pyrargyrite — General Category Sulfosalt Chemical formula Ag3SbS3 …   Wikipedia

• rhombohedron — rhombohedral, adj. /rom beuh hee dreuhn/, n., pl. rhombohedrons, rhombohedra / dreuh/. a solid bounded by six rhombic planes. [1830 40; < Gk rhómbo(s) RHOMBUS + HEDRON] * * * …   Universalium

• Silicate minerals — ▪ Table Silicate minerals name colour lustre Mohs hardness specific gravity Tectosilicates (three dimensional networks) feldspar (for other examples, see feldspar) orthoclase flesh red, white to pale yellow, red, green vitreous 6–6½ 2.6… …   Universalium

• rhombohedron — [ˌrɒmbə(ʊ) hi:dr(ə)n, hɛd ] noun (plural rhombohedra drə or rhombohedrons) a solid figure whose faces are six equal rhombuses. Derivatives rhombohedral adjective Origin C19: from rhombus + …   English new terms dictionary