Closeout Assorted Bag of 3 Australian Boulder Opals Otto Frei Jewelry-quality fine silver — not

Jewelry-quality fine silver — not medical-grade material

Made from natural Arkansas black novaculite – quarried and cut in the USA

5mm Style Gothic Initial Attachment Screw post with nut What's Included

000 BTU (38

The GRS 004-579 Air Filter–Oil Filter System removes dirt and oil contamination from compressed air

Closeout Assorted Bag of 3 Australian Boulder Opals Otto Frei Jewelry-quality fine silver — notBoulder Opal is found exclusively in Queensland, Australia, where veins and patches of precious opal form within rugged brown ironstone boulders. These gems were created over millions of years as rainwater dissolved silica from the earth's surface, depositing it into natural cavities within the ironstone. The result is a gemstone of exceptional character and exceptional durability. The ironstone backing provides natural reinforcement that makes