Origin: Silberberg, Bodenmais, Bavaria, Germany
Sample size: 6 x 8 cm matrix
3-4 1 mm sized black poikiloblastic hercynite crystals with green
phlogopite,
monticellite, smaller
magnetite crystals,
apatite and
andradite in carbonatite
Origin: Magnet Cove Carbonatite, Hot Springs Co., Arkansas, US.A.
Sample size: 4 x 4 cm
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