hisingerite

[′hi·siŋ·ə‚rīt]

(mineralogy)

Fe₂^3-Si₂O₅(OH)₄·2H₂O A black, amorphous mineral composed of hydrous ferric silicate; an iron ore.

References in periodicals archive ?

Reddish to brown, gum-like amorphous masses of hisingerite are common at Llallagua, sometimes associated with cronstedtite.

Hisingerite occurs as typical earthy masses and coatings in altered skam in the Bor pit, and also in the Verchniy and Second Sovietskiy mines.

The altered skarns contain in addition datolite, hisingerite, quartz, calcite, sepiolite and siderite (Bulavko, 1984).