Drusy, druse, druzy, drusies - different spellings, but they all mean tiny quartz crystals that form within or on other stones.
When ground water carrying dissolved silica is forced into a porous area of the rock, rapid cooling often occurs, causing the formation of tiny crystals on the surfaces or in cavities of the rock. The clear crystals often form on top of previously deposited minerals. This is called a drusy. Some minerals found in this form are chrysocolla, malachite, hematite, psilomelane, uvarovite, pyrite, carnelian and cobaltian calcite.
The image on the right is a collage of some stones in my collection and the image below it is a photo of a chunk of chrysocolla rough with a formation of drusy crystals.
Folklore:
See specific base stones: chrysocolla, malachite, etc.
Drusy Jewelry and Cabochons
Jewelry made with Drusy. A selection of freeform cabochons and rough available for my jewelry designs.
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