Kornelite
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Description
Silky, fibrous pink to violet color crystals of hydrated ferrous sulfate. Kornelite crystals were named after Kornel Hlavacsek, Hungarian geologist. It occurs naturally as a rare, and commercially unimportant, mineral. It generally occurs from the oxidation of iron sulfides (pyrites).
Synonyms and Related Terms
kornellite (sp); iron (III) sulfate; ferric sulfate heptahydrate
Physical and Chemical Properties
- Composition = Fe2(SO4)3.7H2O
- Soluble in water
- Affected by moisture in air
- Density = 2.306 g/ml
- Monoclinic crystals generally occurring as needles or aggregates
- Cleavage = good in one direction
- Streak = pale red
- Fluorescence = none
Resources and Citations
- Mindat.org: Kornelite Accessed Dec 2022
- Web Mineral: Kornelite Accessed Dec 2022
- Website: http://labs.sci.qut.edu.au/minerals/mineral%20general%20descriptions/K/Kornelitepcd.htm
- Wikipedia: Iron(III)sulfate Accessed Dec 2022