Sillimanite

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Hoard of Neolithic polished axes (4000s BC), found in “LeMouillarien” in the commune of Arzon (Breta

Link #history #prehistory #geography #geology #neolithic period #france #prehistoric france #neolithic france #bretagne #morbihan #arzon #axes #sillimanite #greenstone

the-dreadful-mirror:Polymorph minerals XPL(Al₂SiO₅)- Sillimanite - kyanite- AndalusiteYAY for metamo

Link #polymorph #geology #mineral #schist #thin section #thin section thursday #andalusia #kyanite #sillimanite #the earth story

the-dreadful-mirror:Polymorph minerals XPL(Al₂SiO₅)- Sillimanite - kyanite- AndalusiteYAY for metamo

Link #polymorph #geology #mineral #schist #thin section #thin section thursday #andalusia #kyanite #sillimanite #the earth story

the-dreadful-mirror:Polymorph minerals XPL(Al₂SiO₅)- Sillimanite - kyanite- AndalusiteYAY for metamo

Link #polymorph #geology #mineral #schist #thin section #thin section thursday #andalusia #kyanite #sillimanite #the earth story

Same Chemistry, Three Different MineralsWhile the three aluminosilicate minerals pictured below (and

Link #mineral #minerals #polymorph #geology #mineralogy #aluminosilicate #kyanite #sillimanite #andalusite #the earth story