This Tyrannosaurus Rex Tibia bone is from the Cretaceous Age. The lower leg bone was found in the Hell Creek Formation in Fort Peck, Montana. Call us for more details or stop by Astro Gallery of Gems to see the specimen.  

From Elmwood Mine, Carthage, Smith County, Tennessee   Small group in hemispherical clusters of off-white barite overgrown on a large cubic cluster translucent purple fluorite crystals.The fluorite surfaces are composed of smaller parallel crystal faces, with well defined purple zoning lining the crystal terminations. Damage free. Very sought after specimen...

Allosaurus hand and Lower Arm: 155-150 Million Years Old /(Late-Jurassic) Morrison Formation, Montana. The first big meat-eating predator discovered in the Morrison Formation, predates Tyrannosaurus rex.   16 x 2 x 1 inches, 341.3 grams

From Erongo Mountains, Namibia   Plate of stark white microcline matrix covered with gem transparent  aquamarine crystals beside large schorl foitite tourmaline crystals. The tourmaline are doubly terminated with pyramidal termination on one side and fibrous foitite termination on the other. The aquamarine crystals are translucent to transparent at the...

From San Eugenio, Artigas Dept., Uruguay   2 large 5 inch half moon crystals of translucent calcite crystals on matrix covered with lustrous deep purple amethyst quartz crystals. The calcite crystals are well formed tanish yellow color, has a secondary growth of amethyst crystals surround the outer edge of the...

From Copper Queen Mine, Bisbee, Warren District, Cochise County, Arizona Large cluster of deep royal blue azurite crystals in spherical rosettes partially covering the matrix enriched with malachite in spherical aggregates. The azurites has lustrous crystals faces fully terminated.   5.35 lbs, 6.5'' x 5'' x 3.5''    

From Tsumeb Mine, Otavi-Bergland District, Oshikoto, Namibia   Large showy vug completely lined with lustrous transparent-translucent emerald green Dioptase crystals on chrysocola enriched matrix. The crystals are all fully terminated with highly reflective faces.   1.75 lbs, 6'' x 3.5'' x 3.5''

From San Eugenio, Artigas Dept., Uruguay   Large 7'' scalenohedral transparent calcite crystal on matrix covered with lustrous translucent grape purple amethyst crystals. The calcite crystal is a tanish off white color fully terminated with etched faces.   14.45 lbs, 10'' x 10'' x 8.5''

From Pashan Hill Quarry, Pune District, Maharashtra, India   Spray of translucent emerald green apophyllite crystals surrounded by a cluster of bladed stilbite crystals in bow-tie-shaped aggregates on matrix. The apophyllite crystal have lustrous crystal faces with steep pyramidal terminations.   6.3 lbs, 8'' x 7'' x 5''    ...

Juvenile Edmontosaurus Foot Late Cretaceous 73 million years ago, Lance Creek Formation, Montana

From Silesia, Poland   Large complex intersecting cluster of lustrous fiery red to orange Zincite crystals. Has a high luster with gem transparent crystal with bright fiery gradient color of red to orange with very sharp tappering terminations.   5.6 lbs, 8.5'' x 6'' x 4''   *Custom Lucite base...

From Touissit Mine, South of Oujda, Morocco   Lustrous cluster of vivid-blue chisel shaped azurite crystal on a fibrous malachite matrix. The azurite crystals are well formed with striated crystal faces and great transparency along the edge of the terminations.   241.3g , 3.5'' x 3'' x 1''

Velociraptor Claw Cretaceous Period, 75-71 million years old, Montana, USA   6.5 x 2 x 1.5 inches

From Copper Queen Mine, Bisbee, Warren District, Cochise County, ArizonaLarge cabinet specimen with a deep cavity lined with lustrous crystals of deep royal blue azurite on matrix with veins of green malachite on brown gossan matrix. The azurites are bright and vibrant blue with sharp terminations. This is a classic specimen...

From Wuning Mine, Wuning Co., Jiujiang Prefecture, Jiangxi Province, China   Metallic gray insecting spray of elongated stibnite crystals with bright mirror luster faces. The crystals are well defined with deeply straited faces, with a few curvature crystals.   3.3 lbs, 9.75'' x 5'' x 4.5''   *Custom Lucite base...

From Jebel Ouichane, Beni Bou Ifrour, Nador, Nador Province, Oriental Region, MoroccoHere is a superb cluster of these incredible new blue Barites that have been discovered this past year. The crystal growth is in a radial parallel and divergent aggregates of very elongated flattened crystals with good terminations, very acute,...

From Bisbee, Warren District, Cochise County, ArizonaLarge vug lined with lustrou vibrant royal blue azurite microcrystals accented by botryoidal malachite all on matrix. Crystal have a bright and vivid royal blue color.2.30 lbs, 5.75'' x 4'' x 4''

Large translucent triple-penetrating twinned crystals of transparent Indian calcite on sparkling power-blue druzy Chalcedony on matrix. The calcite has rich golden color with sharp terminations and a waxy luster, with great transparency. 1.8 lbs, 4'' x 4'' x 3''

From Bendoukou, Sandare District, Kayes Region, Mali   Translucent spherical aggregates of green prehnite over a bed of terminated deep hunter green epidote crystals on matrix. The prehnite is well formed, complete all around with vibrant green color.   4.8 lbs, 9.5'' x 5.5'' x 2.5''

From Agrigento Province, Sicily, Italy A classic and beautiful large specimen of sharp, gemmy translucent rich yellow sulphur crystals wrapping over a matrix of sparkling snow white Aragonite from Agrigento Province, Sicily, Italy. Has bright gemmy translucent crystals with skeletal faces and glassy luster.   2.40 lbs, 5'' x 4.5''...

From Agrigento District (Girgenti), Sicily, Italy   Lustrous crystals of translucent yellow sulfur in parallel formation on matrix, to the right of the specimen theres a small geode with sulfur. Large showy crystals, fully terminated with no damage.   1.8 lbs, 9'' x 3.75'' x 2.75''

From Bombay Quarry, Mumbai, Maharastra, India   Radiating spray of water clear transparent acicular crystals on mesolite in a geode lined with druzy quartz crystals.   5.65 lbs, 6'' x 5.5'' x 4.5''

From Naica, Saucillo, Chihuahua, Mexico   Large water clear transparent cluster of Gypsum var. Selenite crystals. Cluster showing parallel growth with glassy luster faces with a gem transparent interior.   22.60 lbs, 15.5'' x 11'' x 7''

From Minerva #1 Mine, Cave-in-Rock District, Hardin County, IllinoisLustrous transparent cubic cluster of gem blue fluorite with purple zoning. The surfaces are composed of many smaller parallel crystal faces which have a silky look to them and have small micro crystals of chalcopryrite.   2.15 lbs, 4.75'' x 4'' x...

From Minglanilla, Cuenca, Castilla La Mancha, Spain   Aesthetic intersecting cluster of large twinned sixling purple aragonite crystals. The aragonite crystals are in pseudohexagonal habit because of its cyclic twinning. Crystals are double terminated with lavender purple color and waxy luster faces. All terminations are complete and damage free.  ...

From Erongo Mountain, Erongo Region, NamibiaLarge cabinet specimen of gem translucent mint green cuboctahedral fluorite crystals from 1-3 inches in width on feldspar matrix. Crystals are fully terminated with etched crystals face. The fluorites are mint green in color with greyish purple phantoms.     11.15 lbs, 12'' x 7.75''...

From Touissit Mine, Oujda, Morocco   Large terminated crystal of translucent gem yellow anglesite between metallic grey galena matrix covered with dozens of micro anglesite crystals. Has bright yellow color with deeply striated faces, fully terminated.   3.10 lbs,  4.5'' x 3.5'' x 3.5''

From Jalgaon, Maharashtra, IndiaLarge sculptural cluster of colorless doubly-terminated apophyllite crystals wrapping around a quartz stalactitic formation. Crystals are transparent to translucent at the termination, has lightly striated lustrous faces. Small tanish pink stilbite crystals isolated throughout the specimen.   3.220 lbs, 8'' x 5'' x 5.5''

From Uchucchaqua Mine, Oyon Province, Lima Department, Peru   Lustrous gem red scalenohedral crystals of rhodochrosite on dark manganese-rich matrix. The rhodochrosite crystals have rich red color and are translucent with glassy luster faces. This specimen has been added to a private collection.    395.7 g, 3.5'' x 2.75'' x...

From William Wise Mine, Westmoreland, Cheshire County, New Hampshire Large translucent to transparent octahedral crystal of gem green fluorite from the famous Wise mine in New Hampshire. Crystal formation is sharp and well define, all faces are flattened triangle shaped with a silky luster with deep and uniform emerald green...

From Santana de Mangeiras, Paraiba, Brazil   An exceptional large smoky amethyst scepter crystal with fine sharp  terminations with etched windowed faces. Crystal is complete all around with lustrous faces, transparent with smoky amethyst color zoning throughout the crystal. A beautiful well defined scepter crystal from this region.   350.6 g, 3.75''...

From Malad Quarry, Mumbai (Bombay) District, Maharashtra, India   Superb hemispherical hair-thin clusters of white okenite on matrix with colorless stilbite crystals with  translucent pale green apophyllite crystals. Damage free.   3.70 lbs, 8.25'' x 6.5'' x 3''

From Twin Creeks Mine, Cut 20, North Zone, Humboldt County, Nevada   Lustrous bladed cluster of translucent orange orpiment crystals on matrix. Crystals have a chisel shaped terminations with deeply striated faces.   419 g, 4'' x 2.5'' x 1.75''

From Denton Mine, Cave-In-Rock, Harden County, Illinois, USA   Large cubic formation translucent fluorite with deep purple outer layer and a golden yellow core. Crystal faces show stepped growth with a pearl luster and included with a few micro crystals of chalcopyrite . Has sharp well defined purple zoning around the golden...

From Nagar, Hunza Valley, Gilgit-Baltistan, Pakistan2 lustrous transparent  aquamarine crystals in parallel formation on matrix composed of bladed silvery muscovite crystal in a radiating sprays. The aquamarine is fully terminated with glassy luster faces.1.25 lbs, 4'' x 3.5'' x 3''

 From Nagar, Maharashtra, India Aesthetic specimen of lustrous terminated cluster of translucent- transparent emerald green apophyllite crystals in stalactitic formation.   399.7 g, 6.5'' x 3.25'' x 3''

From Ganzhou, Jiangxi Province, China   Large cabinet specimen of transparent bi colored octahedral fluorite crystals etched out of white quartz matrix. The fluorite crystals are terminated with smooth faces with a waxy luster and green with purple zoning at the edges of the terminations.   4.95 lbs, 8.5'' x...

From Jeffrey Mine, Asbestos, Quebec, Canada   Lustrous cluster of gem transparent orange grossular garnet  crystal wrapping around its matrix with a small fraction matrix exposed. The crystals have lustrous faces with many sharp etched parallel growth faces. Specimen with come mounted on acrylic base as shown.   348 g,...

From Tsumeb Mine, Otavi-Bergland District, Oshikoto, NamibiaLustrous crystal cluster of pink translucent smithsonite on matrix. Crystals have sharp terminations with glassy luster faces. The crystals are colored pink due to cobalt impurities, also known as Cobaltoan Smithsonite or Cobalt-rich Smithsonite. Specimen is mounted on an acrylic base.1.16 lbs, 2.75'' x...

From Masua Mine, Iglesias Province, Sardinia, ItalyAesthetic botryoidal/stalactitic formation of smithsonite in rounded aggregates on matrix. Bright and lively specimen with scintillating lustrous crystal faces with bright yellow green color.1.20 lbs, 4'' x 3.5'' x 2.5'' *Custom Lucite base shown included with purchase