Osumilite-(Mg) : K◻2Mg2Al3[Al2Si10O30]
Mullite : Al4+2xSi2-2xO10-x
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“FOV 4 mm. Collection Bernd Ternes, photo Stephan Wolfsried”
Stephan Wolfsried - 1st November 2009
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Stephan Wolfsried - 15th April 2010
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