Gobi Desert Agate Ventifact~CRGDAV03 bloodstone Ocean Opal Generator~Madagascar~CROCOP06

Ocean Opal Generator~Madagascar~CROCOP06

56mm x 32mm

In modern times

Tanzanite Rough~Tanzania CRTANZ30

Gobi Desert Agate Ventifact~CRGDAV03 bloodstone Ocean Opal Generator~Madagascar~CROCOP06Gobi Desert (Mongolia) Agate Ventifact~CRGDAV03. Gobi Desert (Mongolia) Agate Ventifact. A ventifact is a rock that has been abraded, pitted, etched, grooved, or polished by wind driven sand or ice crystals. These geomorphic features are most typically found in arid environments where there is little vegetation to interfere with particle transport, where there are frequently strong winds, and where there is a steady but not overwhelming supply of