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RM3442   Schorl
NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
  -  9. Silicates

A very good-sized specimen of schorl, with multiple prism faces and rhombohedral terminal faces. The brilliance is excellent and the black colour is very intense. A great specimen from this classic African locality.

Size: 8.1 x 4 x 3.7 cm.
270 €