Cobble Creek: 1.10 LB Large Chunk of Obsidian Raw Rough Natural from Mexico
Always loved Obsidian. This is a great chunk of all natural, rough, raw Obsidian from Mexico. Great for science class, collecting or the talented folks out there. The piece in the photo is the piece you will receive.
Width: 2.3" inches / 60 mm
Height: 2.4" inches / 63 mm
Length: 3.8" inches / 96 mm
Weight: 500 grams / 17.6 ounces / 1.10 pounds
Country of Origin: Mexico
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock.
Obsidian is produced when felsic lava extruded from a volcano cools rapidly with minimal crystal growth. It is commonly found within the margins of rhyolitic lava flows known as obsidian flows, where the chemical composition (high silica content) induces a high degree of viscosity and polymerization of the lava. The inhibition of atomic diffusion through this highly viscous and polymerized lava explains the lack of crystal growth. Obsidian is hard and brittle and therefore fractures with very sharp edges. In the past it was used to manufacture cutting and piercing tools and it has been used experimentally as surgical scalpel blades.
1 business day
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Just contact me within: 7 days of delivery
Ship items back to me within: 14 days of delivery
But please contact me if you have any problems with your order.
Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:
Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.