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BCR306 Chalcedony

BCR306 Chalcedony


  • This is an exceptional quality select Chalcedony rock from Mexico. They are various shades of grey to a beautiful blue.  This is a great rock for tumbling, cutting or carving project.
  • Perfect for jewelry making.
  • A great rock for cutting and any lapidary project.
  • This particular specimen set measures from 1 7/8″ x 1 1/4″ to 4 1/2″x 2 1/2″ and  weighs nearly 2 pounds.

MOHS hardness scale of  7

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Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths of the minerals quartz and moganite. Chalcedony has a waxy luster, and may be semitransparent or translucent. It can assume a wide range of colors, but those most commonly seen are white to gray, grayish-blue or a shade of brown ranging from pale to nearly black.

Additional information

Weight2 lbs
Dimensions4 × 5 × 3 in

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Keystone, SD 57751

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