Quartz 'Herkimer Diamond' Herkimer, New York, USA Measuring approximately 8 x 6 x 5.5 cm For further information on this lot please visit Bonham...

Smoky Quartz together with a Quartz Cluster with Chlorite Smoky quartz, Brazil, measuring approximately 7.5 x 4.5 x 5 cm Quartz cluster with chlor...

Quartz After Danburite on Acrylic Base Charcas, Charcas Municipality, San Luis Potosí, Mexico This fine specimen features drusy quartz covering da...

Quartz with Chlorite Inclusion Dhading District, Bagmati Pradesh, Nepal The landscape on this fine quartz specimen changes dramatically as it is r...

Smoky Quartz on Acrylic Base Recruta farm, Anagé, Bahia, Brazil At first glance, this could be a scheelite from South Korea, but careful observati...

Tiger Iron Matrix Slab Western Australia An elegant, free-form long slab of an ancient ornamental mineral, sometimes called tiger's eye matrix, wh...

Rhodochrosite Sweet Home Mine, Alma, Park Co., Colorado, USA This specimen features a number of rhodochrosite rhombohedra that are of a deeper red...

Polished Rhodochrosite Stalactite Slab Capillitas mining district, Andalgalá Department, Catamarca Province, Argentina Of elongated oval outline, ...

Rhodochrosite Wutong Mine, Guangxi, China This specimen features an etched mass of deeply colored rhodochrosite associated with pyrite and quartz,...

Rhodochrosite Hotazel Mine, Hotazel, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa A small cabinet specimen of a three-di...

Two Rhodochrosite Crystals N'Chwaning Mines, Kalahari Mn-Field, Northern Cape, South Africa The Kalaharin Manganese Field has produced some of the...

Rhodochrosite Sweet Home Mine, Alma, Park County, Colorado, USA This specimen features a corroded looking, but rich pink mass of rhodochrosite on ...

Rhodochrosite Crystal Sweet Home Mine, Alma, Park Co., Colorado, USA The Sweet Home Mine was originally a silver mine that was intermittently work...

Rhodochrosite and Pyrite Sphere Capillitas Mining District, Andalgalá Department, Catamarca Province, Argentina An aesthetic sphere exhibiting int...

Rhodochrosite N'Chwaning Mines, Kuruman, Kalahari Mn-Field, Northern Cape, South Africa A small cabinet specimen, a plate with good mound formatio...

Rhodochrosite on Acrylic Base Wutong Mine, Liubao, Cangwu Co., Wuzhou, Guangxi, China This small cabinet size specimen features an interior well o...

Two Rhodochrosite Spheres Capillitas Mining District, Andalgalá Department, Catamarca Province, Argentina Two spheres cut from material that forms...

Two Ruby Crystals Sivec Quarry, Prisad, Prilep, North Macedonia These ruby crystals were found in a dolomite marble quarry that first began produc...

Ruby in Fuchsite Sphere Mysore District, Karnataka, India Pale green fuchsite forms the majority of this decorative sphere, highlighted by areas o...

Sandstone Concretion--'Gogotte' with Metal Stand Oligocene, 30-million-years-old Fontainebleau, France A Gogotte is a mineral that has been natura...

Muscovite on Shorl with Fluorite Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia A rare and extremely aesthetic specime...

Large Smithsonite Kelly Mine, Magdalena, Socorro County, New Mexico, USA The is a very impressive specimen from a classic american locality. The f...

Smithsonite Kelly Mine, Magdalena, Socorro County, New Mexico, USA Smithsonite is a very popular mineral among collectors and vibrant colors like ...

Smithsonite on Acrylic Base Yanga Koubenza Quarries, Mfouati, Mfouati District, Bouenza Department, Democratic Republic of the Congo While the col...

Two Smithsonites on Acrylic Bases Kelly Mine, Magdalena, Socorro County, New Mexico, USA Larger smithsonite, measuring approximately 5 x 4 x 2.5 c...

Scolecite on Stilbite Jalgaon, Maharashtra State, India Perched on salmon-colored stilbite, this ball of radially grown scolecite exhibits a wonde...

Spinel on Matrix Luc Yen Mine, Lục Yên District, Yên Bái Province, Vietnam The deep red spinel octahedra on this specimen makes an impact contrast...

Kunzite on Acrylic Base Kunar, Afghanistan This is a very gemmy crystal of kunzite with typical, beautiful etch features on most surfaces. Measu...

A Green Beryl and Kunzite Green beryl on Acrylic Base, Aracuai, Minas Gerais, Brazil This fine, well-developed beryl crystal features associated m...

Three Spodumenes Kunar, Afghanistan Three specimens of spodumene from a locality that is currently one of the most prolific suppliers of this spec...

Stibnite Lushi County, Sanmenxia, Henan, China A large single crystal of stibnite. The piece is well terminated with prism striations and 'bends' ...

Stibnite Iyo District, Ehime Prefecture, Japan A fine single crystal from what is historically the classic locality for the species. Height approx...

Five Stibnites China Here is a set of five fine, simple stibnite prisms. Some have sidecar crystals, all are fine examples of the species, exhib...

Sugilite NChwaning 3 Mine, Kuruman Kalahari Manganese Fields Northern Cape, South Africa Measuring approximately 12 x 5.8 x 4.5 cm For further i...

Gemmy blue Elbaite (Indicolite) with Lepidolite Rio Grande, Norte, Brazil This crystal has an intense sky blue color and set of by the lavender l...

Bi-color Tourmaline on Acrylic Base Paprok, Kunar, Afghanistan This is a fine elbaite tourmaline with lovely color zonation that reflect the chang...

Two Tourmalines Golconda Mines, Governador Valadares, Minas Gerais, Brazil The present offering consists of two clusters of pleasant silvery-blue ...

Tourmaline Crystal on Acrylic Base Steel Blue Pocket (2004), Pederneira Mine, Minas Gerais, Brazil This a fine silvery-blue, almost indicolite, co...

Tourmaline Crystal Stewart Mine, Tourmaline Queen Mountain, Pala, Pala Mining District, San Diego County, California, USA Few pieces of the Tour...

A group of three Elbaite and Tourmaline crystals Tourmaline with Quartz, measuring approximately 3 x 3.8 x 3 cm. Elbaite Crystal, measuring appro...

Topaz with Acrylic Base Dassu, Braldu Valley, Shigar District, Gilgit-Baltistan, Pakistan A fine miniature with a sharp, sherry-colored topaz crys...

Two Topazes on Acrylic Bases Thomas Range, Juan Co., Utah, USA This lot consists of two fine topaz specimens, each featuring two sherry-colored cr...

Blue Topaz Crystal This natural blue topaz exhibits fascinating growth features on most of its faces. The basal cleavage surface on the bottom als...

Vanadinite Mibladen mining district, Midelt Province, Drâa-Tafilalet Region, Morocco The Mibladen mining district has produced one of the finest v...

Two Vanadinite Specimens Mibladen mining district, Midelt Province, Drâa-Tafilalet Region, Morocco,This is a very rich, lustrous piece from the ar...

Wulfenite on Acrylic Base La Morita Mine, Sierra Mojina District, Chihuahua, Mexico A nest of sharp, lustrous yellow-orange tabular crystals brist...

Wulfenite on Acrylic Base Level 9, San Juan Poniente Vein, Ojuela Mine, Mapimí, Durango, Mexico Wulfenite usually forms as tabular tetragonal crys...

Quartz with Wolframite on Acrylic Base, with a label Yaogangxian Mine, Yaogangxian W-Sn Ore Field, Yizhang Co., Chenzhou, Hunan, China This striki...

Zoisite on Acrylic Base Merelani Hills, Manyara Region, Tanzania This crystal is a very fine, sharp and lustrous yellow zoisite. Tanzanite is the ...

Two Pyromorphite specimens Bunker Hill Mine, Shoshone Co., Idaho, USA. Measuring approximately 2.7 x 2.6 x 2.5 cm. Measuring approximately 2 x 1...

Three Zeolite Minerals Maharashtra State, India A wonderful set of three zeolite group minerals and some of the minerals found in zeolite environm...

Titanite and Chalcopyrite on Tetrahedrite on Acrylic Base Felber Valley, Mittersill, Zell am See District (Pinzgau), Salzburg, Austria.Not only is...

Gypsum and Aragonite Here are two excellent examples of helictitic growth, a term use for minerals that grow into these coralloid habits. The blue...

Four Mineral Spheres Four mineral spheres of various size and colors, including a bluish grey banded agate sphere with amethyst crystals, a chryso...

Three Mineral Boxes Featuring fossilized dinosaur bone, jasper and tiger iron. The larger box measuring approximately 10 x 7 x 4 cm and the small...

Large Megalodon Tooth Indonesia Measuring approximately 6 1/8 in. For further information on this lot please visit Bonhams.com For further in...

Pathological Megalodon Tooth Indonesia Measuring approximately 4 3/4 in. For further information on this lot please visit Bonhams.com For fur...

Megalodon Tooth Indonesia Measuring approximately 5 in. Footnotes: Good condition: 98% complete bourlette For further information on this lot pl...

Large Megalodon Tooth Indonesia Measuring approximately 5 1/2 in. Footnotes: good condition: blade, enamel are complete For further information ...

Large Megalodon Tooth Indonesia Measuring approximately 5 3/4 in. Footnotes: Overall good condition: Perfect enamel, complete intact bourlette,...