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SP427 Mahogany Obsidian

SP427 Mahogany Obsidian

$135.00

This is a very unique sphere made from Mahogany Obsidian.  It measures 5 1/2″ in diameter, weighs over 7 pounds and has a nice polish.  The sphere has deep red to almost brown color and is darker than in the picture with a neat black spotted design. A truly wonderful find.

In stock

Description

Obsidian is a type of naturally-occurring glass formed as an extrusive igneous rock.  It is produced when felsic lava erupted from a volcano, cools rapidly through the glass transition temperature and freezes without sufficient time for Crystal growth.  Because of the lack of Crystal structure, Obsidian blade edges can reach almost molecular thinness, leading to its ancient use of projectile points (arrow heads), and its modern use as surgical scalpel blades.

Additional information

Weight7.75 lbs
Dimensions5.50 × 5.50 × 5.50 in

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