Obsidian Gemstone Bead, 3mm Faceted Rondelle - Special Purchase #21-903-120

SKU 21-903-120
Approximately 3mm faceted translucent smoky obsidian rondelle gemstone beads. These pretty volcanic glass beads are various shades of gray and gray-brown.
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Brand: R & T
Country of Origin: China
Bin: WH-J-10
Sold by: strands
25% OFF!
Reg. Price:
1+ $24.00
Sale Price(s):
$18.00
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Current Stock Available: 7

Sold by: strand

More Details

Obsidian (pronounced ub-SIH-dee-in) is a natural glass that forms from volcanic activity. The gemstone is made of the same minerals as granite, but cooled so quickly that the minerals did not have time to crystallize. Obsidian is somewhat fragile, and is only slightly harder than window glass. It scratches easily and sharp blows can crack it. Do the lack of crystalline structure, it fractures in sharp curves, hence obsidian was used to make sharp tools as early as 21,000 B.C.

Clear obsidian contains very few opaque impurities or microscopic mineral crystals. Other colors generally result from tiny crystals of feldspar, or inclusions of iron oxide or a wide variety of other minerals that may be present in volcanic flows.


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Approx. Size

3mm

Approx. Hole Size

0.5-1.5mm

Additional Specs

165-195 beads, 16" strand

Material

Obsidian

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