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BCR406 Madison Blue Chalcedony

BCR406 Madison Blue Chalcedony


  • Here’s a cool new item, a lovely Madison Blue Chalcedony from Montana. 
  • This is a great rock for a cutting or carving project.  Take note of the last photo to get an idea of how wonderful this rock is when wet.
  • This particular select specimen measures 6″ x 4 1/4″ x 2 1/2″ and weighs nearly 2 1/2 pounds. 

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Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths of the minerals quartz and moganite. It 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

Weight2.50 lbs
Dimensions6 × 4.25 × 2.50 in

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