- prismatic manganese ore
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манганит
Англо-русский словарь терминов металлургии и сварки. 2011.
Англо-русский словарь терминов металлургии и сварки. 2011.
Nambulite — Gem quality nambulite from the Kombat Mine, Grootfontein District of Namibia (size: 0.7 x 0.6 x 0.4 cm) General Category Inosilicate … Wikipedia
steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying … Universalium
Manganite — This article is about the mineral of formula MnO(OH), for other uses of the term manganite see Manganite (disambiguation) Manganite Manganite, Ilfeld, Thuringia, Germany (size: 5.2×4.1×2.7 cm) Gener … Wikipedia
Epidote — Infobox mineral name = Epidote category = Silicate mineral boxwidth = boxbgcolor = imagesize = caption = Epidote crystals formula = Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH) molweight = color = Pistachio green, yellow green, greenish black habit =… … Wikipedia
Apatite — Not to be confused with appetite. Apatite General Category Phosphate mineral group Chemical form … 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
Chalcanthite — General Category Sulfate minerals Chemical formula CuSO4·5H2O … Wikipedia
Tourmaline — Schorl Tourmaline General Category Cyclosilicate Chemical formula (Ca,K,Na,[ … Wikipedia
Thaumasite — (white) with prehnite (green) from Fairfax Quarry, Virginia … Wikipedia
Ferberite — is the iron endmember of the manganese iron wolframite solid solution series. The manganese endmember is hübnerite. Ferberite is a black monoclinic mineral composed of iron(II) and tungstate, FeWO4. Ferberite occurs as granular masses and as… … Wikipedia
Protactinium — thorium ← protactinium → uranium Pr ↑ Pa ↓ … Wikipedia