Ilmenite, Cassiterite, Quartz (Var: Smoky Quartz)

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This specimen features a 3 x 3 x 1 cm ilmenite nearly embedded in the quartz matrix. On its edges are perched SHARP cassiterite crystals to 1.25 cm. Some show twinning, I think. This is a MOST UNUSUAL association! I cannot recall seeing it from any other locality, before. It is the only such ilmenite we have, with epitaxial cassiterite association. 5.6 x 3.5 x 3.1 cm