Agate Opal
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Physical & Optical Properties
Mohs Hardness
Crystal System
Value & Market
Where to Buy Agate Opal
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About Agate Opal
Agate opal is a transitional material in which agate and common opal are intimately intergrown, creating a stone with both the banded silica structure of chalcedony and the amorphous, waxy character of opal. It typically displays muted greens, browns, and whites in alternating opaque and translucent zones. Found mainly in volcanic terrains in Germany, Mexico, and Australia, it is appreciated as a lapidary material for its unusual mixed composition.