Fordite aka Detroit Agate Cabochon teardrop Measures approximately 22x10x5 mm

Measures approximately 22x10x5 mm

Measures approximately 19x14x5 mm

~27x22x6 mm

Surfite or Surfstone is a repurposed material made from resin waste left over during the surfboard glassing process

Purple Spiny Oyster with Bronze Matrix Composite Cab

Fordite aka Detroit Agate Cabochon teardrop Measures approximately 22x10x5 mmFordite aka Detroit Agate Cabochon Measures approximately 22x24x7 mm Fordite, also known as Detroit agate or Motor City agate, is old automotive paint which has hardened sufficiently to be cut and polished. It was formed from the buildup of layers of enamel paint slag on tracks and skids on which cars were hand spray painted, which have been baked numerous times. (from Wikipedia)