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From the "type" locality: Black Rock Mine, Cape Province, Republic of South Africa

Two honey-brown inter-grown, but incomplete, crystals. They are translucent at the surface, and opaque at the core. The larger of the two crystals is 2.5x4.5cm, and partially terminated at both ends.  We got this one from Al McGuinness, in 1987.

4.5x4.5x2cm  Weigh 28.7grams