| 释义 |
hohmannite Min.|ˈhəʊmænaɪt|
[ad. G. hohmannit (A. Frenzel 1888, in Min. und petrogr. Mittheil. IX. 397), f. the name of Thomas Hohmann, mining engineer of Valparaiso, who discovered it: see -ite1.]
A hydrous basic ferrous sulphate, FeSO4(OH).3H2O, occurring in triclinic crystals of a brownish red colour that rapidly dehydrate on exposure to air.
1888Jrnl. Chem. Soc. LIV. 923 In a sample of copiapite, from Valparaiso, a new iron sulphate was found, to which the name Hohmannite has been given. 1900E. S. Dana Text-bk. Min. 536 Amarantite. Fe2O3.2SO37H2O... Hohmannite is the same partially altered. 1938Amer. Mineralogist XXIII. 745 On dehydration..hohmannite apparently loses the four loosely held molecules of water and forms what is here called metahohmannite. In this respect it differs from amarantite, which is much more stable under atmospheric conditions. 1968I. Kostov Mineral. 499 Amarantite and hohmannite are triclinic⁓pinacoidal. |