From Southern Paraná Basalt Basin, Artigas, Uruguay   A nicely banded cross section of an amethyst stalactite crystal. Gem translucent slice with colorless along the outer rim of the slice. Polished on front and rear sides.   55.1 g,  2.5'' x 2''

From Southern Paraná Basalt Basin, Artigas, Uruguay   A nicely banded cross section of an amethyst stalactite crystal.  Gem translucent slice with deep purple color along the outer rim of the slice. Polished on front and rear sides.   41.5 g,  3'' x 2''

Top grade untreated free formed Larimar cabochon has rich blue color with high polished finish.   Weight: 20.7 ct Size: 30mm x 11mm Shape: free formed Origin: Dominican Republic

Beautiful hand polished petrified wood slice from Madagascar. It has an amazing pattern with vibrant hues of brown, yellow, and orange. Fossilized Petrified Wood, which is also known as Agatized Wood, forms when a tree has died and silicon dioxide forms in place of the wood that degrades until there...

Top grade untreated free formed Larimar cabochon has rich blue color with high polished finish.   Weight: 20.7 ct Size: 24mm x 13mm Shape: free formed Origin: Dominican Republic

Beautiful hand polished petrified wood slice from Madagascar. It has an amazing pattern with vibrant hues of brown, yellow, and orange. Fossilized Petrified Wood, which is also known as Agatized Wood, forms when a tree has died and silicon dioxide forms in place of the wood that degrades until there...

From Mashamba West , Kolwezi, Western area, Shaba Cu belt, Shaba (Katanga), Congo (Zaire)Complex cluster of lustrous pink translucent flattened rhombohedral cobalt-rich Calcite crystals covering 2 sides of matrix. Has bright intense color with scintillating luster. These are from an old stock mined from the 1970s or 1980s and very rarely...

From Mashamba West , Kolwezi, Western area, Shaba Cu belt, Shaba (Katanga), Congo (Zaire)Complex cluster of lustrous pink translucent flattened rhombohedral cobalt-rich Calcite crystals on matrix. Has bright intense color with scintillating luster. These are from an old stock mined from the 1970s or 1980s and very rarely available with...

Classic old-European specimen with a lustrous combination of well defined pyritohedral crystal cluster of Italian pyrite on hematite matrix. This undamaged specimen has fully terminated crystal faces. These specimens, from Rio Marina, Elba Island, Livorno Province, Tuscany, Italy, are highly desired by collectors and are becoming much harder to find....

Classic old-European specimen with a lustrous combination of well defined pyritohedral crystal cluster of Italian pyrite on hematite matrix. This undamaged specimen has fully terminated crystal faces. These specimens, from Rio Marina, Elba Island, Livorno Province, Tuscany, Italy, are highly desired by collectors and are becoming much harder to find....

From Detroit Salt Company Mine, Detroit, Wayne Co., Michigan, USA   Group of translucent to transparent clear cubic crystals of Halite from the Detroit Salt mine in Michigan. Sharp well defined terminations with a wax luster. Water soluble specimen.   149.9 g, 3.5'' x 2'' x 2''

From Detroit Salt Company Mine, Detroit, Wayne Co., Michigan, USA   Group of translucent to transparent clear cubic crystals of Halite from the Detroit Salt mine in Michigan. Sharp well defined terminations with a wax luster. Water soluble specimen.   90.8 g, 3'' x 2.5'' x 1''

Classic old-European specimen with a lustrous combination of well defined pyritohedral crystal cluster of Italian pyrite on hematite matrix. This undamaged specimen has fully terminated crystal faces. These specimens, from Rio Marina, Elba Island, Livorno Province, Tuscany, Italy, are highly desired by collectors and are becoming much harder to find....

Aesthetic specimen of hoppered cubic Halite crystals on Trona with deep pink color from Owens Lake, Inyo County, California. The rich pink color is due to organic impurities. The crystals are transparent to translucent with a wet luster and have a well-defined etched hoppered crystal formation. The specimen is also...

Aesthetic specimen of hoppered cubic Halite crystals on Trona with deep pink color from Owens Lake, Inyo County, California. The rich pink color is due to organic impurities. The crystals are transparent to translucent with a wet luster and have a well-defined etched hoppered crystal formation. The specimen is also...

Aesthetic specimen of hoppered cubic Halite crystals on Trona with deep pink color from Owens Lake, Inyo County, California. The rich pink color is due to organic impurities. The crystals are transparent to translucent with a wet luster and have a well-defined etched hoppered crystal formation. The specimen is also...

From Mashamba West , Kolwezi, Western area, Shaba Cu belt, Shaba (Katanga), Congo (Zaire)Complex cluster of lustrous hot pink translucent flattened rhombohedral cobalt-rich Calcite crystals on matrix. Has bright intense color with scintillating luster. These are from an old stock mined from the 1970s or 1980s and very rarely available with...

Large 1.5 inch metallic lustrous cubic Spanish Pyrite crystal on matrix. This specimen has sharp, well-defined terminations where the crystal faces are smooth with a metallic mirror luster. This Pyrite is from Victoria Mine, Navajún, La Rioja, Spain and is in pristine condition. 1.25 lbs, 3.25'' x 3'' x 2.5''...

From Erongo Mountain, Erongo Region, NamibiaLustrous crystals of jet black schorl tourmaline crystals scattered across a bed of  feldspar. Crystal faces have sharp diagonal but subtle striations with equant pyramidal terminations. The luster is superb, has a bright wet sheen.   65.4 g, 3.5'' x 1.5'' x 1''

From Elmwood Mine, Carthage, Smith County, TennesseeCluster of twinned doubly terminated scalenohedral golden calcite crystals on limestone matrix partially covered with spherical aggregates of barite The calcite crystals gem transparent twinned on the c-axis with well defined complex re-entrant faces.641.1 g, 4.25'' x 2.5'' x 3''

Aesthetic specimen of hoppered cubic Halite crystals on Trona with deep pink color from Owens Lake, Inyo County, California. The rich pink color is due to organic impurities. The crystals are transparent to translucent with a wet luster and have a well-defined etched hoppered crystal formation. The specimen is also...

From Detroit Salt Company Mine, Detroit, Wayne Co., Michigan, USA   Large group of translucent to transparent clear cubic crystals of Halite from the Detroit Salt mine in Michigan. Sharp well defined terminations with a wax luster. Water soluble specimen.   1.20 lbs, 6'' x 5.5'' x 1.75''

Natural cabochon of gem transparent Quartz with golden acicular needle crystal inclusions of  Rutile.   Weight: 55.9ct Size: 29mm x 23mm Shape: Round Origin: Novo Horizonte, Bahia, Brazil

From Milpillas Mine, Cuitaca, Sonora, MexicoLustrous cluster of bright vivid royal blue Azurite crystals accented by a small fibrous malachite crystals. Gem translucent along the edges with internal reflections are visible in certain areas.   1.5 x 1 inches

From Elmwood Mine, Carthage, Smith County, TennesseeCluster of twinned doubly terminated golden calcite crystals on limestone matrix with micro barite crystals . The calcite crystals are gem transparent scalenohedral twinned on the c-axis with well defined complex re-entrant faces.528.6 g, x 4.5'' x 3'' x 2.5''

From Milpillas Mine, Cuitaca, Sonora, MexicoLustrous crystals of bright vivid blue royal Azurite crystals with white clay matrix. Gem translucent with internal reflections are visible in certain areas. 1 x 1 inches

From Milpillas Mine, Cuitaca, Sonora, MexicoLarge fully terminated single crystal of bright vivid royal blue Azurite on matrix. Gem translucent along the edges with internal reflections are visible in certain areas.   1.25 x 1 inches

From Mashamba West , Kolwezi, Western area, Shaba Cu belt, Shaba (Katanga), Congo (Zaire)Complex cluster of lustrous pink translucent flattened rhombohedral cobalt-rich Calcite crystals on matrix with fibrous crystals of malachite. Has bright intense color with scintillating luster. These are from an old stock mined from the 1970s or 1980s and...

Classic old-European specimen with a lustrous combination of well defined pyritohedral crystal cluster of Italian pyrite on hematite matrix. This undamaged specimen has fully terminated crystal faces. These specimens, from Rio Marina, Elba Island, Livorno Province, Tuscany, Italy, are highly desired by collectors and are becoming much harder to find....

From Erongo Mountain, Erongo Region, NamibiaLustrous crystals of jet black schorl tourmaline crystals scattered across a bed of  feldspar. Crystal faces have sharp diagonal but subtle striations with equant pyramidal terminations. The luster is superb, has a bright wet sheen.   86.6 g, 3'' x 2.5'' x 1

From Owens Lake, Inyo County, CaliforniaAesthetic specimen of hoppered cubic halite crystals with deep pink color. Rich pink color due to organic impurities. Crystals are transparent to translucent with a wet luster. Well defined etched hoppered crystal formation. Specimen is water soluble.   1.75 lbs, 8'' x 7'' x 1.5''...

From Milpillas Mine, Cuitaca, Sonora, MexicoLustrous large crystal of bright vivid royal blue Azurite accented by a pseudomorphic fibrous malachite after azurite crystal. . Gem translucent with internal reflections are visible in certain areas   1 x 1 inches

Classic old European specimen with a lustrous combination of well defined pyritohedral crystal cluster of Italian pyrite on hematite matrix. This undamaged specimen has fully terminated crystal faces. These specimens, from Rio Marina, Elba Island, Livorno Province, Tuscany, Italy, are highly desired by collectors and are becoming much harder to...

From Owens Lake, Inyo County, CaliforniaAesthetic specimen of hoppered cubic halite crystals with deep pink color. Rich pink color due to organic impurities. Crystals are transparent to translucent with a wet luster. Well defined etched hoppered crystal formation.  Specimen is water soluble.   1.25 lbs, 7'' x 5.75'' x 1.25''...

From Detroit Salt Company Mine, Detroit, Wayne Co., Michigan, USA   Large group of translucent to transparent clear cubic crystals of Halite from the Detroit Salt mine in Michigan. Sharp well defined terminations with a wax luster. Water soluble specimen.   1.5 lbs, 8'' x 5.5'' x 1.75''

From Yaogangxian Mine, Nanling Mountains, Hunan Province, China   Large specimen of pale-yellow scalenohedral calcite on a bed of micro calcite crystals with transparent mint green fluorite with purple phantoms. The fluorites are cubic with modified terminations. Minor contact along the bottom of the specimen.   2.70 lbs, 7'' x...

From Milpillas Mine, Cuitaca, Sonora, MexicoLustrous single crystal of bright vivid royal blue Azurite. Fult terminated with lustrous etched crystal faces. Gem translucent along the edges with internal reflections are visible in certain areas.   1.25 x 1 inches

From Milpillas Mine, Cuitaca, Sonora, MexicoLustrous crystals of bright vivid royal blue Azurite crystals on fibrous malachite matrix. Gem translucent with internal reflections are visible in certain areas   1 x 1 inches

Large water-clear, near flawless, prismatic crystal of Quartz from Peña Blanca Mine, Mun. de San Pablo de Borbur, Vasquez-Yacopí Mining District, Boyacá Department, Colombia.  This transparent crystal, with horizontal striations across the crystal faces and a natural wet-luster, appears as if polished. Super rare find and hard to come these top...