Mosasaurs (from Latin Mosa meaning the 'Meuse river', and Greek σαύρος sauros meaning 'lizard') are large, extinct, marine reptiles. The first fossil remains were discovered in a limestone quarry at Maastricht on the Meuse in 1764. Mosasaurs probably evolved from semiaquatic squamates[1] known as aigialosaurs, which were more similar in...

Lustrous cluster of Citrine crystals - handmade formed in a heart shape - with a beautiful polished agate rim. (From Uruguay)   Dimensions: 14 x 11 x 3 inches Weight: 14.5 Lbs (17.5 Lbs with stand)

The Gimbae stone is from the ancient land of Pinggu - also known as the land of wonders. This piece of highly-polished Gimbae has a beautiful even pattern that flows throughout.  Gimbae stone is from the original stone formation in the Sinian more than a billion years ago. The quality...

Here's a well define polished agate slice polished on both sides with vibrant translucent hues of pink. From Brazil *Patterns may vary on piece Stock photo is shown, similar piece will be sent.

Otodus obliquus, previously known as Lamna obliqua was one of the earliest mackerel sharks. Their teeth are noted for their wide triangular crown and large side cusps (occasionally multiple side cusps). Large Otodus obliquus teeth are not easily located in the phosphate pits in Atlas Mountains of Morocco, but can...

From Mina Ojuela, Mapimi, Durango, Mexico   Rare specimen of fully terminated 15mm gem yellow transparent legrandite crystal on brown limonite matrix partially coated with calcite crystals. Rare top quality specimen, crystals are damage free with top color and transparency.   25 x 16 x 10 mm, 6.5 grams

From Wagholi Quarry, Maharashtra, India   Lustrous vivid translucent crystals of cavansite in isolated spherical aggregates on quartz microcrystal-coated matrix .   4 x 4 x 2.5 inches, 435.7 grams

Very tactile fossilised clam shell from Sakaraha in the Tulear province, Madagascar. These shells have been polished to give them a lovely smooth texture and highlight their colour. Jurassic, circa 165 million years old.   3 x 2.5 x 1.25 inches, 172.2 grams

Fiery labradorite cabochons set in a sterling silver necklace Handmade polished Labradorite Heart with beautiful iridescent play of colors of blue, yellow and red which is caused by internal fractures in the mineral that reflect light back and forth, dispersing it into different colors.  91.2 grams, 14 inches

Here's a well define polished agate slice polished on both sides with vibrant translucent hues of purple. From Brazil Stock photo is shown, similar piece will be sent. *Patterns may vary on piece

Hand made candle holder made from top quality translucent banded onyx from Mexico. Has been polished to a smooth finish with scentless wax candle center. In crystal healing Banded Onyx is seen as a stone of  happiness, good fortune and strength. Green Banded Onyx is associated with the heart. It...

Rectangle table lamp composed of gem translucent agate slices set in resin with a plethora of multicolored slices to add color and light to any office or home. Shown illuminated by LED light. This unique and sophisticated lamp is not suitable for outdoor use. Wall plug and cord are included....

From Edong Mining District, Daye, Hubei, China   Large cluster of well defined scalenohedral calcite crystals partially covered with lustrous iridescent metallic chalcopyrite crystals on the surfaces. Bright and lively color of blues ,greens and reds.   5.5 x 4 x 3 inches, 1.35 lbs

From Novo Horizonte, Bahia, Brazil Gem transparent smoky quartz crystal heavily included with dozens of needle like golden yellow rutile crystals in a complex intersecting parallel formation.   4.5 x 3.5 x 2 inches, 1.9 lb s

Large formation of Agaricia agaricites, commonly known as lettuce coral or tan lettuce-leaf coral, is a species of colonial stony corals in the family Agariciidae. This coral is found in shallow waters in the tropical western Atlantic Ocean and the Caribbean Sea.   7 lbs, 17 x 14 x 7...

From Maharashtra, India   Scintillating cluster of translucent crystalline micro crystals of pink apophyllite with small wheat sheave aggregates of stilbite. Has gradient color from deep pink to light pink with lustrous crystal faces.   10 x 5 x 1 inches, 328.1 grams

From Navajun, Spain Large single crystal of cubic pyrite perched atop a basalt matrix. The pyrite crystal measures 2 x 2 inches , its a perfect 3d cube with smooth metallic mirror luster faces.   7.5 lbs, 8 x 6 x 5 inches

From Moscow, Russia      A slice of a fossilized pseudomorphic ammonite that has been replaced molecule by molecule by metallic pyrite with iridescent luster on the outer surfaces with exposed chambers that are now lined with metallic pyrite crystals.    6 lbs, 10 x 9.5 x 1.5 inches

AAA Quality free form golden rutile included quartz crystals polished to a mirror finish with great transparency and color.   Weight: 890 ctSize: 4mmShape: free form Length: 21 inches Clasp: 14 kt Yellow gold

Thin plate of matrix embedded with gem transparent amethyst crystals. The amethyst crystals are fully terminated with rich deep purple amethyst crystals.   5 x 4.5 x .5 inches, 195.1 grams

Large specimen of gem transparent amethyst crystals on matrix . The amethyst crystals are fully terminated with rich deep purple amethyst crystals.   5 x 3.5 x 2 inches, 438.7 grams  

Large specimen of gem transparent amethyst crystals on matrix lined with druzy quartz crystals. The amethyst crystals are fully terminated with rich deep purple amethyst crystals.   6 x 3.5 x 2 inches, 1.15 lbs

Large natural crystal of translucent gemmy ruby red corundum in white marble matrix.This beautiful specimen is from Jegdalek, Sorobi District, Kabui Prov., Afghanistan   4.5 x 4 x 2.5 inches, 2.10 lbs

Lustrous tetrahedral golden-iridescent chalcopyrite crystals, overgrown on a intersecting cluster of sharp rhombic siderite crystals. This specimen comes from the Huanggang Fe-Sn deposit, Hexigten Banner, Ulanhad League, Inner Mongolia Autonomous Region, China   5 x 5 x 1.5 inches, 2.5 lbs

From Agrigento Province, Sicily, Italy A large single crystal of bright yellow sulfur with well defined crystal faces and gem transparent core.   1 x 1 x .75 inches, 15.7 grams

From Agrigento Province, Sicily, Italy An aesthetic parallel formation of bright yellow sulfur crystals gem transparent core with well defined crystal faces and dark bitumen along the crevices on the crystals.   2 x 1.5 x 1.5 inches, 68 grams

From Agrigento Province, Sicily, Italy Large single crystal of bright yellow sulfur with well defined crystal faces and gem transparent core.   2 x 1.75 x 1.5 inches, 62.1 grams

Beautiful Brazilian Quartz point Crystal Cluster.  This translucent crystal cluster has fully terminated quartz point crystals with lustrous highly reflective faces.  8 x 4 x 3 inches, 4.20 lbs

From Agrigento Province, Sicily, Italy A classic and beautiful specimen of large 1.5- 2 inch  gemmy translucent rich yellow sulphur crystals intersecting over a matrix of sparkling snow white Aragonite from Agrigento Province, Sicily, Italy. Has bright gemmy translucent crystals with skeletal faces and glassy luster.   4.5 x 4...

Top grade natural Amethyst gemstone. Has rich lavender purple color with flawless clarity.   Weight: 65.25 ctSize: 31mm x 25mm x 15mmShape: Oval facetedOrigin: Brazil

Top grade natural Citrine gemstone has a rich golden overtone with flawless clarity.   Weight: 62.35 ctSize: 31mm x 17.5mm x 14mmShape: Emerald CutOrigin: Brazil

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: 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''

Dhofar 020 stony chondrites are by far the most common type of meteorite to fall to Earth: about 80% of all meteorites and over 90% of chondrites are ordinary chondrites.They contain abundant chondrules, sparse matrix (10–15% of the rock), few refractory inclusions, and variable amounts of Fe-Ni metal and troilite...