'Obsidian is described as having this type of luster, from the Latin for "glassy"'
vitreous
ROCKS & MINERALS: Obsidian is described as having this type of luster, from the Latin for glassy
Obsidian is described as having this type of luster, from the Latin for "glassy"
Obsidian is described as having this type of luster, from the Latin for "glassy"
ROCKS & MINERALS
vitreous
ROCKS & MINERALS