Ettringite on Oyelite With Hausmannite

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3 major crystals dominate the top of this matrix plate of hausmannite, smothered by a soft carpet of oyelite. The two frontal crystals are 4 cm long, and a 5-cm crystal runs under them, linking them all together in a chain of color. A larger, fatter , broken-off crystal is a backstop at the base of the cluster. Overall this is a dramatic piece, particularly shown in the vertical, and it is more ettringite than one normally sees on one specimen!