This is a slice of fossilized dinosaur bone with one side polished to a mirror finish. This specimen is a fossilized dinosaur bone in which the original fossil material has been replaced by silica, exposing the inner cell structure of the bone. The impurities within the silica is how this...

This is a slice of fossilized dinosaur bone with one side polished to a mirror finish. This specimen is a fossilized dinosaur bone in which the original fossil material has been replaced by silica, exposing the inner cell structure of the bone. The impurities within the silica is how this...

This is a slice of fossilized dinosaur bone with one side polished to a mirror finish. This specimen is a fossilized dinosaur bone in which the original fossil material has been replaced by silica, exposing the inner cell structure of the bone. The impurities within the silica is how this...

This is a slice of fossilized dinosaur bone with one side polished to a mirror finish. This specimen is a fossilized dinosaur bone in which the original fossil material has been replaced by silica, exposing the inner cell structure of the bone. The impurities within the silica is how this...

Large cluster of genuine electric-green fluorite crystals on Matrix. This rare African specimen displays large gemmy crystals, with top luster. A fine collector piece.    44.5 lbs, 15 x 7.5 x 9.5 inches

Cluster of genuine electric-green fluorite crystals on Matrix. This rare African specimen displays large gemmy crystals, with top luster. A fine collector piece.    8.8 lbs, 6 x 4 x 6.5 inches

Cluster of genuine electric-green fluorite crystals on Matrix. This rare African specimen displays large gemmy crystals, with top luster. A fine collector piece.    7 lbs, 9 x 3 x 6.5 inches

Cluster of genuine electric-green fluorite crystals on Matrix. This rare African specimen displays large gemmy crystals, with top luster. A fine collector piece.    4.8 lbs, 5 x 2.25 x 5.5 inches

Cluster of genuine electric-green fluorite crystals on Matrix. This rare African specimen displays large gemmy crystals, with top luster. A fine collector piece.    6.4 lbs, 6.5 x 4 x 5 inches

Cluster of genuine electric-green fluorite crystals on Matrix. This rare African specimen displays large gemmy crystals, with top luster. A fine collector piece.    3.6 lbs, 5.25 x 2 x 4.5 inches

Cluster of genuine electric-green fluorite crystals on Matrix. This rare African specimen displays large gemmy crystals, with top luster. A fine collector piece.    3.6 lbs, 6.5 x 4 x 3.5 inches

Cluster of genuine electric-green fluorite crystals on Matrix. This rare African specimen displays large gemmy crystals, with top luster. A fine collector piece.    3.8 lbs,  4 x 2 x 6 inches

From Nandan County, Hechi, Guangxi, China   Complex intersecting formation of lustrous gem translucent golden barite crystals with lustrous faces and sharp modified rhombic faces.   5 lbs, 7 x 3 x 5 inches

From Las Viesca, Asturias, Spain   Large showy 1.5 inch gem green transparent fluorite crystal with blue phantom zoning at the center termination on matrix lined with scintillating quartz with peach dolomite crystals. The fluorite has lustrous cubic faces with cubo-octahedral shape composed of step growth parallel cubic faces. Rich...

From Wagholi Quarry, Maharashtra, India   Vibrant royal blue cavansite crystals in spherical aggregates on quartz microcrystal-coated matrix with small isolated rhombic calcite crystals.   405.2 grams, 5 x 2 x 3 inches

from Hunza Valley, Gilgit-Baltistan, Pakistan   Transparent to translucent deep pink hexagonal fluorapatite crystal on an intergrown cluster of muscovite. The fluorapatite crystas has lustrous modified basal pinacoid faces and glassy prism faces.   79.4 grams, 1.5 x 1.5 x 2.5 inches

from Tsumeb Mine, Otavi-Bergland District, Oshikoto, Namibia   World class specimen of lustrous royal blue azurite crystals with sharp bladed terminations . There are several isolated areas exhibiting fibrous malachite psuedomorph after azurite. This specimen was once part of the Joseph Freilich collection, and can be in seen in 2001's...

From Nasik District, Maharashtra, India   Penetrating twinned crystals of transparent golden yellow calcite with silky luster faces and sharp terminations. The twin orientation is well defined and visible throught the termination faces.  2 lbs, 5 x 4 x 3.5 inches

Spinosaurus (Dinosaur) tooth in a glass display box From Tegana Formation, North Africa. Cretaceous Age 65 million years Carcharodontosaurus is one of the longest and heaviest known carnivorous dinosaurs, with various scientists proposing length estimates ranging between 12 and 13 m (39-43.5 ft) and weight estimates between 6 and 15...

Carcharodontosaurus (Dinosaur) tooth in a glass display box From Tegana Formation, North Africa. Cretaceous Age 65 million years Carcharodontosaurus is one of the longest and heaviest known carnivorous dinosaurs, with various scientists proposing length estimates ranging between 12 and 13 m (39-43.5 ft) and weight estimates between 6 and 15...

Carcharodontosaurus (Dinosaur) tooth in a glass display box From Tegana Formation, North Africa. Cretaceous Age 65 million years Carcharodontosaurus is one of the longest and heaviest known carnivorous dinosaurs, with various scientists proposing length estimates ranging between 12 and 13 m (39-43.5 ft) and weight estimates between 6 and 15...

Carcharodontosaurus (Dinosaur) tooth in a glass display box From Tegana Formation, North Africa. Cretaceous Age 65 million years Carcharodontosaurus is one of the longest and heaviest known carnivorous dinosaurs, with various scientists proposing length estimates ranging between 12 and 13 m (39-43.5 ft) and weight estimates between 6 and 15...

Exceptional clarity with natural untreated color. Weight: 314.5 ctSize: 13mm x 6mmShape: Rondelle Length: 19 inches Clasp: 14 kt White goldOrigin: India

100% natural untreated emerald beads with high quality micro faceting.Weight: 591 ctSize: 4mm x 3mm to 5mm x 3mmShape: Faceted Rondelle Length: 17 inches Clasp: 14 kt White goldOrigin: Zambia

Exceptional clarity with highly saturated apple green color. Untreated high quality micro faceting.Weight: 591 ctSize: 6mm x 5mm to 8mm x 4mmShape: Faceted Rondelle Length: 17.75 inches Clasp: 14 kt Yellow goldOrigin: India

Genuine Baltic amber necklace with gorgeous bright gem orange-red color and great clarity. Weight: 451.5 ctShape: raw Length: 30 inchesOrigin: Baltic Sea

Genuine Baltic amber necklace with gorgeous bright gem orange-red color and great clarity. Weight: 474 ctShape: raw Length: 21 inchesOrigin: Baltic Sea

From Jalgaon District, Maharashtra, IndiaElongated interconnected stalactites of translucent black druzy chalcedony on basalt matrix. The chalcedony is has a translucent colorless outline with scintillating crystal surfaces.   5.50 lbs, 9.5'' x 6.5'' x 5''

From Mina Ojuela, Mapimi, Durango, Mexico   Large limonite matrix lined with brown calcite covered with lustrous elongated translucent mimetite crystals showing rare rectangular pseudo-scalenohedral crystal formation.    3.85 lbs, 10'' x 5.5'' x 2.5''

From Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, MichiganLustrous translucent parallel scalenohedral calcite crystals with metallic copper inclusions on matrix. The copper inclusions are visible throughout the crystals.*Custom Lucite base shown included with purchase1.25 lbs, 4'' x 3.5'' x 2.5''

From Edong Mining District, Daye, Hubei, China   Large cluster of scalenohedral calcite with a secondary coating of lustrous iridescent metallic chalcopyrite crystals on the surfaces. Bright and lively specimen with a scintillating surface.   3.20 lbs, 6.5'' x 4'' x 4.75''

From Dalnegorsk, Primorskiy Kray, Russia   Highly lustrous stacked cluster of translucent manganese rich faint pink calcite crystals. The calcite crystals are scalenohedral formation with double terminations and striated crystal faces.   1.80 lbs, 5.5'' x 4'' x 3''

From Dalnegorsk, Primorskiy Kray, Russia Highly lustrous gem transparent crystals of colorless fluorite on matrix with small prismatic quartz crystals embedded with metallic galena crystals along side bladed rhombic crystals of calcite. The fluorite crystals show a combination of various formation from tetrahexahedral to octahedral and  dodecahedral.   2 lbs,...