polished section
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Atlanta Rhythm Section — Atlanta Rhythm Section, sometimes abbreviated ARS, is an American southern rock band. The band unofficially formed in 1970 as former members of the Candymen and the Classics IV became the session band for the newly opened Studio One in Doraville … Wikipedia
Аншлиф — штуф г. п., окаменелости или угля, одна или две поверхности которого (обычно поверхность вертикального излома) пришлифованы и отполированы для изучения в отраженном свете п. м. или бинокулярной лупой. Рыхлые п. или угли перед шлифованием… … Геологическая энциклопедия
243 Ida — Galileo image of 243 Ida. The tiny dot to the right is its moon, Dactyl. Discovery[1] and designation … Wikipedia
Nickeline — General Category Arsenide mineral Chemical formula nickel arsenide:NiAs … Wikipedia
Covellite — General Category Sulfide mineral Chemical formula copper … Wikipedia
Violarite — (Fe2+Ni23+S4) is a supergene sulfide mineral associated with the weathering and oxidation of primary pentlandite nickel sulfide ore minerals.Violarite crystallises in the isometric system, with a hardness of 4.5 to 5.5 and a specific gravity of… … Wikipedia
Nagyagite — from Nagyag (Săcărâmb), Romania (image width: 1.5 mm) General Category Sulfosalt mineral Chemica … Wikipedia
Pallasovka (meteorite) — Meteorite Name= Pallasovka Image caption= Image width= Type= Stony iron Class= Pallasite Group= Main Group Pallasite (anomalous) Structural classification= Composition= Olivine: Fe/Mn = 45.2, Fe/Mg = 0.14; Metal: Fe 86 wt%, Ni 13.1 wt%, Ir 0.12… … Wikipedia
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
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
Native elements — ▪ Table Native elements name colour lustre Mohs hardness specific gravity habit or form allemontite tin white; reddish gray metallic 3–4 5.8–6.2 kidneylike masses amalgam gold amalgam yellowish metallic 15.5 lumps or grains moschellandsbergite… … Universalium
