Crystals and minerals - metallic

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Ferrochromium ore Bright silver ferrochromium ore from South Africa, contrasted with a black onyx base.
  • 5/8 inch (1.6 cm) wide, 7/16 inch (1.1 cm) deep, 1/2 inch (1.3 cm) high, #1575, $10
A sculptural specimen of arborescent copper. This specimen is an industrial by-product although the form does occur in nature. Black onyx base.
  • 7/8 inch (2.2 cm) wide, 1/4 inch (0.6 cm) deep, 3/8 inch (0.95 cm) high, #1371, $10
Crystalline bismuth Crystalline bismuth, man-made, silver coloured, on a black walnut base.
  • 7/8 inch (2.2 cm) wide, 5/8 inch (1.6 cm) deep, 1/2 inch (1.3 cm) high, #764, $11
Crystalline bismuth, man-made, iridescent, on a black walnut base..
  • Just over 7/8 inch (2.2 cm) wide, 7/8 inch (2.2 cm) deep, 5/8 inch (1.6 cm) high, #1407, $12
Crystalline bismuth Crystalline bismuth, silver coloured, man-made, on a black walnut base.
  • 3/4 inch (1.9 cm) wide, 9/16 inch (1.4 cm) deep, 9/16 inch (1.4 cm) high, #771, $10