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Very sharp, and nearly complete, set of Gahnite crystals. The luster is very good, and the largest crystal is 1.9 cm on edge. A truly superb specimen for the species and historic locality. It has old red ink catalogue numbering on one rear face.
, color range from ruby red to cobalt blue, sharp octahedral form, hardness 8, rare gemmy crystals on marble, prized by collectors for rarity and luster.
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