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Gemstone Cabochons Ob - Ony

Obsidian Cabochons

Obsidian is dense volcanic glass usually black in color. Inclusions and bubbles add color and patterns to some types of obsidian. It is often formed in rhyolite lava flows when the lava cools quickly enough to prevent crystal formation. Glass has no regular structure and fractures in round smooth sections. These can form an extremely sharp edge and obsidian was used by many cultures for knives and arrowheads. Today obsidian blades are used in heart surgery, and have a cutting edge much sharper than surgical steel scalpels.

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Snowflake Obsidian
Snowflake Obsidian Cabochon

Item 1844

Snowflake Obsidian
Snowflake Obsidian Cabochon

Item 1845

Spider Web Obsidian
Spider Web Obsidian Cabochon
Item 1582

Spider Web Obsidian
Spider Web Obsidian Cabochon
Item 1587

Spider Web Obsidian
Spider Web Obsidian Cabochon
Item 1586
Spider Web Obsidian
Spider Web Obsidian Cabochon
Item 1589
Golden Sheen Obsidian
Golden Sheen Obsidian Gemstone Cabochon
Item 1158
 

Onyx Cabochons

Onyx is a cryptocrystalline form of quartz. Bands are usually white, tan and brown but can be a wide variety of colors. Sardonyx has red bands of color. Black Onyx is less common than banded Onyx. Used for cabochons, beads and cameos. Onyx has been used by a variety of Ancient cultures and civilizations.

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Onyx Gemstone Cabochon
Item
1693

Onyx Gemstone Cabochon
Item 1694

Onyx Gemstone Cabochon
Item 1654

Grey Blue Onyx Cabochon
Item 1653
Onyx Gemstone Cabochon
Item 1748

Silver Lace Onyx Cabochon
Item 1096

 

 

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