单词 | ransomite |
释义 | ransomiten. Mineralogy. A rare mineral formed by the burning of copper pyrites in a mine and occurring as blue transparent crusts and radiating tufts of acicular crystals.Ransomite is a hydrated sulphate of copper, ferric iron, and aluminium, Cu(Fe,Al)2(SO4)4·7H2O. Crystal system: monoclinic. ΘΚΠ the world > the earth > minerals > types of mineral > sulphates > [noun] > sulphates of two plus elements > hydrous or hydrated polyhalite1818 neoplase1854 römerite1858 kainite1868 mamanite1868 plagiocitrite1886 redingtonite1888 knoxvillite1889 kleinite1907 mosesite1910 ransomite1928 leightonite1938 koktaite1948 1928 C. Lausen in Amer. Mineralogist 13 221 Ransomite occurs as crusts lining cavities in the crushed rocks and also as small tufts of radiating crystals. 1970 Amer. Mineralogist 55 729 Ransomite..occurs only in the United Verde mine at Jerome, Arizona, where it formed as the result of a mine fire. 1994 Acta Crystallographica B. 50 497/2 (caption) The [M(Tϕ4)2ϕ] chain in ransomite and krausite. This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022). < n.1928 |
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