Calcite from Castelinho Mine, Alto Uruguai, Rio Grande do Sul, Brazil lolite sphere south of Hat Yai

south of Hat Yai

sharp "Porcupine" calcite cluster

heterogeneous order of trilobite containing some of the most primitive species known

The piece has been painstakingly prepared with mechanical tools to expose all of the individual ammonite fossils on one side

Calcite from Castelinho Mine, Alto Uruguai, Rio Grande do Sul, Brazil lolite sphere south of Hat YaiFrom Castelinho Mine, near Frederico Westphalen, Alto Uruguai, Rio Grande do Sul, Brazil Colorless translucent scalenohedral calcite crystals on matrix with crust of green celadonite microcrystals. The calcite crystals have matte luster and have small rhombohedral faces at the tips. Weight: 6. 5 lbs, Dimension: 12 x 5 x 7 inches