Chalcedony

     Chalcedony is a member of the Cryptocyrstalline Quartz Group.  It has a waxy luster with extremely small crystals.  It is nearly transparent to translucent and when it fractures, it leaves sharp edges.  Its most common color is gray, but it may be white, brown, black, or blue.  Some varieties appear to be opals, but are not!
     Below are links to more information about gemstones that are in the  Cryptocyrstalline Quartz Group group:

• Agate

• Jasper

• Onyx

• Sard

• Tigereye

Please close this window to return to the product page.