Ettringite, Hausmannite & Oyellite
$95.00
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The specimen has a chunky rough formed crystal of ettringite on the edge of the flat plate matrix of hausmannite on a thin flat plate of oyellite, each 0.3cm thick. The hausmannite formed an edge to edge aggregate spread of small dipyramidal crystals. The ettringite measures 1.4cm x 0.9cm.
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