Treatments: 

Gemstone beads are natural materials; size, color and tone will vary between strands making each one unique. Measurements given are close approximations.
 

Before you Buy: Please ask questions about the item you wish to purchase prior to buying it. We are always happy to give more information about items in our store prior to purchase.  

Obsidian is a naturally occurring glass
 formed as an extrusive igneous rock.
 It is produced when felsic lava
 extruded from a volcano cools without
 crystal growth
Obsidian is usually dark in appearance,
 though the color varies depending on the
 presence of impurities. Iron and magnesium
 typically give the obsidian a dark green to
 brown to black color. A very few samples
 are nearly colorless. In some stones, the
 inclusion of small, white, radially clustered
 crystals of cristobalite in the black glass
 produce a blotchy or snowflake pattern