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Specimen # BOL711B132
but it appears that the rich color is due to a micro coating of transparent Quartz on top of the Vauxite
Sri Lanka in the 1890s
soft metallic grey colored tabular blades of Bournonite are intergrown to create this eye-catching display specimen
Cassiterite with Siderite and Quartz cabinet Specimen # BOL711B132The quality of the Cassiterites on this specimen is outstanding. Theyre very sharp, smooth and lustrous, and good sized for the material! Several fantastic, very sharp, eye catching, highly lustrous, jet black to golden colored, amazingly well formed cyclic twinned crystals are aesthetically intergrown with tan compressed rhombohedra of Siderite. There are actually a few small Quartz crystals on the piece as well for a final touch. Very minimal
