- subconchoidal fracture
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• полураковистый излом• слабораковистый излом
English-Russian dictionary of geology. 2011.
subconchoidal fracture
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Fracture (mineralogy) — This article is about the terminology used to describe fracture surfaces. For fractures in rocks and minerals per se, see Fracture (geology) In the field of mineralogy, fracture is a term used to describe the shape and texture of the surface… … Wikipedia
subconchoidal — “+ adjective Etymology: sub + conchoidal : partially or indistinctly conchoidal a rock with subconchoidal fracture * * * adj … Useful english dictionary
Sulfide minerals — ▪ Table Sulfide minerals name colour lustre Mohs hardness specific gravity habit or form fracture or cleavage refractive indices or polished section data crystal system argentite blackish lead gray metallic 2–2 1/2 7.2–7.4 cubic or octahedral… … Universalium
Oxide minerals — ▪ Table Oxide minerals name colour lustre Mohs hardness specific gravity anatase brown to indigo blue and black; also variable adamantine to metallic adamantine 5½–6 3.8–4.0 boehmite white, when pure 3 3.0–3.1 brookite various browns metallic… … 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
Phosphate minerals — ▪ Table Phosphate minerals name colour lustre Mohs hardness specific gravity amblygonite white to creamy white; slightly tinted vitreous to greasy 5½–6 3.0–3.1 apatite carbonate apatite variable, greens predominating vitreous 5 2.9–3.2… … Universalium
Halide minerals — ▪ Table Halide minerals name colour lustre Mohs hardness specific gravity atacamite various bright green shades; dark emerald green to blackish adamantine 3–3½ 3.8 calomel colourless, white, grayish, yellowish, brown adamantine 1½ 7.15 carnallite … Universalium
Marl — For other uses see Marl (disambiguation). For the red algal growth form, see Maerl. Exposure of marl from the Matmor Formation (Jurassic) of southern Israel … Wikipedia
Su Song — 蘇頌 (Sū Sòng) Born 1020 near Quanzhou Died 1101 (aged 80–81) Nationality Chinese … Wikipedia
Sulfosalts — ▪ Table Sulfosalts name colour lustre Mohs hardness specific gravity argyrodite bluish to purplish black; steel gray when fresh metallic 2½ 6.1–6.3 bournonite steel gray to iron black metallic 2½–3 5.8–5.9 enargite gray black to iron black… … Universalium
Scheelite — Infobox mineral name = Scheelite category = boxwidth = boxbgcolor = caption = formula = Calcium tungstate CaWO4 molweight = color = Golden yellow, brownish green, brown, pinkish to reddish gray, colorless habit = Pseudo octahedra, massive,… … Wikipedia
