#mullite — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #mullite, aggregated by home.social.
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Repost: Kyanite isn't just a fetching blue mineral that documents the experience of sediments under extreme duress.
It's an ore: Virginia alone mined 83,000 tonnes in 2023. Kyanite in furnace insulation transforms to mullite when heated, expanding to reduce porosity and shrinkage.Virginia Kyanite (photo: J. Wyman) from:
https://energy.virginia.gov/geology/Kyanite.shtml -
Kyanite isn't just a fetching blue mineral that documents the experience of sediments under extreme duress.
It's an ore -Virginia alone mined 83,000 tonnes in 2023. Kyanite in furnace insulation transforms to mullite when heated, expanding to reduce porosity and shrinkage.Virginia Kyanite (photo: J. Wyman) from:
https://energy.virginia.gov/geology/Kyanite.shtml#MinCup24 #Kyanite #Mullite #Virginia #Piedmont #Appalachians
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#Mullite was first found in nature on Mull, by the legendary American petrologist Norman Bowen, in 1923, who had predicted its occurrence in the Loch Scridain sills based on experimental melting of aluminium-rich rocks in his lab in Washington.