L217 google and chalcedony rosettes on polished

and chalcedony rosettes on polished agate base

ash on wood

18th century Italian Mecca church tassel on calcite

With the unusual formation of sphalerite and galena

19th century Irish wallpaper with 18th century Irish reproduction molding

L217 google and chalcedony rosettes on polished18th century Italian gold leaf fragment with a baroque pearl on a free forming black obsidian mineral with a polished face. Obsidian is a naturally occurring volcanic glass formed when lava extruded from a volcano cools rapidly with minimal crystal growth. It is an igneous rock. Obsidian is produced from felsic lava, rich in the lighter elements such as silicon, oxygen, aluminum, sodium, and potassium. Size: 6. 5" wide x 5. 5" high x 2. 5" deep