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South Dakota Chalcedony – Large

South Dakota Chalcedony – Large

$24.00$35.00

This a larger size of a favorite here at the Rock Shed, South Dakota Chalcedony. The pieces measure approximately 1 3/4″ to 3+” in varies shapes and sizes.  This material will fluoresce a brilliant green under  SW/UV light as seen in the other photos. This material is overall good rock for the tumbler or use them as is for fountains and other decorative uses.

The MOHS Hardness Scale of 7

Description

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

Weight N/A
Dimensions N/A
Bag Size

3lbs LARGE SD Chalcedony, 5lbs LARGE SD Chalcedony

Contact Us

Address:
515 1st Street
Keystone, SD 57751

Order: 1-866-354-0894
Information: 605-666-4813
Email: info@therockshed.com

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