Superb crystal cluster of tan-colored herderite crystals up to 3 cm! Fully crystallized on all surfaces and no damage, though there are natural imperfections in the crystals. Very large crystals of a rare mineral. With old label from L. Conklin. Ex. Al Sebela collection. Overall size of mineral specimen: 4x4x3 cm. Size of individual crystals: 5-30 mm.
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