Gothite sentence example

gothite
  • Gothite occurs with other iron oxides, especially limonite and hematite, and when found in sufficient quantity is mined with these as an ore of iron.
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  • The metallic glitter of avanturine or sun-stone (q.v.) is due to the enclosed scales of gothite and certain other minerals.
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  • Limonite and the related minerals, turgite, 2Fe20 3 +H 2 O, and gothite, Fe 2 0 3 +H20, are grouped together under the term " brown haematite."
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  • Enclosures of other minerals (rutile, chlorite, haematite, gothite, actinolite, asbestos and many others) are extremely frequent in crystals of quartz.
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  • Ferric oxide or iron sesquioxide, Fe203, constitutes the valuable ores red haematite and specular iron; the minerals brown haematite or limonite, and gothite and also iron rust are hydrated forms. It is obtained as a steel-grey crystalline powder by igniting the oxide or any ferric salt containing a volatile acid.
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