Obsidian “Silver Layer” from Georgia – Small Cabinet Specimen as a Unique Piece
This Obsidian specimen from Georgia displays a deep black, highly glassy surface with striking silvery-grey shimmering zones and fine flowing structures. Depending on the angle of the light, the lighter areas become more or less prominent, creating a distinct contrast with the black base colour. Pronounced conchoidal fracture surfaces and curved fracture lines are characteristic of natural volcanic glass. The specimen weighs approximately 59 g and is offered as the unique piece shown.
Geology & Locality
Obsidian is a natural volcanic glass formed by the rapid cooling of silica-rich lava. This cooling process leaves little time for larger crystals to develop, resulting in its characteristic glassy structure. Variations in flow and solidification within the volcanic glass can produce the silvery shimmering zones and bands visible in this specimen. Georgia is located within the geologically and volcanically influenced Caucasus region, where various volcanic rocks and natural glasses occur.