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Aardvark Obsidian (formerly Cassius Basaltic) Cone 5

$0.62
SKU:
ACCASSIUS
Minimum Purchase:
25 units
Unit Quantity:
Amount you need IN POUNDS
Minimum:
25 pounds (1 bag)

Product Overview

Aardvark Clay's Obsidian (formerly Cassius Basaltic - boxes might have the old name on them as they transition)

Fired Shrinkage is 14.5% and Water Absorption is .5% when fired to cone 5. Very black, ebony like finish. Needs lots of oxygen during bisque firing.
 
Please refer to this link for a bisque firing schedule that was created with Obsidian in mind. https://www.aardvarkclay.com/pdf/technical/Bisquefiring.pdf
 

⚠ WARNING - This product can expose you to crystalline silica (quartz) which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov