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BCR309 Mahogany Obsidian

BCR309 Mahogany Obsidian

$30.00

BCR309: Mahogany Obsidian 

Locality: Mexico

Selection: High quality obsidian. Various cutting options. Each piece is handpicked from our inventory with careful consideration. 

Please note: Display photos are shot under various light settings. Some photos are shot wet, to display a possible outcome, if polished. 

Approximate measurements: LxWxH –6 3/8″ x 4 1/8″ x 4 7/8″. Weight – 5.25lbs 

Availability: 1 piece, exclusive. 

MOHS hardness scale of 5-6  

Out of stock

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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.

Mahogany-Obsidian is a volcanic rock that’s silica-rich and contains undulating parts of oxidized Hematite or Magnetite, which are usually colored mahogany brown or brick red within a black-colored base material. Mahogany-Obsidian can be found in places where volcanic activities have occurred.

Additional information

Weight 5.25 lbs
Dimensions 6.5 × 4.25 × 4.875 in

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Keystone, SD 57751

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Information: 605-666-4813
Email: info@therockshed.com

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