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(Rhyolite002) 16mm Rhyolite
(Rhyolite004) 20mm Faceted Rhyolite
(Rhyolite005) 12mm Round Rhyolite
(Rhyolite008) 9x28mm Rhyolite Tubes
(Rhyolite009) 5mm Rhyolite Tulips and Roundels