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Walter R. Kellogg


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Mineral Specimen #6537    Black Kyanite with Included Graphite ( Vassourinha - Witch's Broom)

Ribeirao da Folha, Minas Novas, Minas Gerais, Brazil

7.4 x 6.4 x 2.4 cm
2.9 x 2.5 x 0.9 in


Two intersecting fans (locally called witch's brooms) of radiating crystals of Kyanite colored dark gray, almost black, with micro inclusions of Graphite. This is a fairly large specimen for this material which was originally marketed as a Amphibole. Most of the crystals are terminated. The faces of crystals have a waxy luster.

Condition: Good

Flaws: A few of the terminations are incomplete.

This mineral is also found in the following galleries: Minerals From Brazil | Nesosilicates | Elements | Minerals with Inclusions | Minerals Priced Between 25 and 49 Dollars