This amethyst stalactite slice from Southern Paraná Basalt Basin, Artigas, Uruguay features a beautifully banded cross section. The gemstone is tra...

This amethyst stalactite slice from Southern Paraná Basalt Basin, Artigas, Uruguay features a beautifully banded cross section. The gemstone is tra...

This amethyst stalactite slice from Southern Paraná Basalt Basin, Artigas, Uruguay features a beautifully banded cross section. The gemstone is tra...

This amethyst stalactite slice from Southern Paraná Basalt Basin, Artigas, Uruguay features a beautifully banded cross section. The gemstone is tra...

From Yaogangxian Mine, Nanling Mountains, Hunan Province, China   Large specimen of pale-yellow scalenohedral calcite on a bed of micro calcite cry...

From Guangdong Province, China  Large showy specimen of green cubic fluorite crystals. Well formed cubic formation with water clear transparency an...

This Quartz stalactite slice from Southern Paraná Basalt Basin, Artigas, Uruguay features a beautifully banded cross section. This polished slice i...

From Shaba Copper Belt, Katanga (Shaba) Province, Democratic Republic of the Congo (Zaire) A sculptural botryoidal formation of solid velvety green...

From Shaba Copper Belt, Katanga (Shaba) Province, Democratic Republic of the Congo (Zaire) A sculptural botryoidal formation of solid velvety green...

From Shaba Copper Belt, Katanga (Shaba) Province, Democratic Republic of the Congo (Zaire) A sculptural botryoidal formation of solid velvety green...

A nicely banded cross section of an amethyst stalactite crystal from Southern Paraná Basalt Basin, Artigas, Uruguay   Gem translucent slice with de...

This Quartz stalactite slice from Southern Paraná Basalt Basin, Artigas, Uruguay features a beautifully banded cross section. This polished slice i...

This Quartz stalactite slice from Southern Paraná Basalt Basin, Artigas, Uruguay features a beautifully banded cross section. This polished slice i...

From Shaba Copper Belt, Katanga (Shaba) Province, Democratic Republic of the Congo (Zaire) A sculptural botryoidal formation of solid velvety green...

From Shaba Copper Belt, Katanga (Shaba) Province, Democratic Republic of the Congo (Zaire) A sculptural velvet botryoidal formation of solid velvet...

From Shaba Copper Belt, Katanga (Shaba) Province, Democratic Republic of the Congo (Zaire) A sculptural botryoidal formation of solid velvety green...

From the Eocene epoch. Monte Baldo, Italy. This rare and superb crab fossil comes from the limestone layers situated near Vicenza in Italy. The thr...

From Shaba Copper Belt, Katanga (Shaba) Province, Democratic Republic of the Congo (Zaire) A sculptural botryoidal formation of solid velvety green...

From Shaba Copper Belt, Katanga (Shaba) Province, Democratic Republic of the Congo (Zaire) A sculptural botryoidal formation of solid velvety green...

From Shaba Copper Belt, Katanga (Shaba) Province, Democratic Republic of the Congo (Zaire) A sculptural botryoidal formation of solid velvety green...

This Quartz stalactite slice from Southern Paraná Basalt Basin, Artigas, Uruguay features a beautifully banded cross section. This polished slice i...

From Shanhua Pu Mine, Xianghualing, Hunan Province, China Lustrous transparent green cubic fluorite crystals on matrix. The fluorite crystals are t...

From Yaogangxian Mine, Nanling Mountains, Hunan Province, China   Lustrous transparent emerald green cubic fluorite crystals over a core of gray ma...

from Mount Gunson Area, South Australia, Australia   The rich translucent green cubic halite crystals in an inter grown 360 formation over selenite...