This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

From Moscona Mine, Villabona District, Asturias, SpainAesthetic penetrating cubic formation of transparent to translucent golden yellow fluorite cr...

From Moscona Mine, Villabona District, Asturias, SpainAesthetic penetrating cubic formation of transparent to translucent golden yellow fluorite cr...

From Moscona Mine, Villabona District, Asturias, SpainAesthetic penetrating cubic formation of transparent to translucent golden yellow fluorite cr...

From Meikle Mine, Elko County, Nevada   Lustrous translucent  golden-yellow barite crystals on bladed faint yellow calcite crystals. The barite cry...

From Tegana Formation, North Africa Cretaceous Age 65 million years Carcharodontosaurus is one of the longest and heaviest known carnivorous dinosa...

From Nandan County, Hechi, Guangxi, China   Complex intersecting formation of lustrous gem translucent golden barite crystals with lustrous faces a...

From Ruyuan, Lechang, Guandong, China Large showy 1.5 inch gem green transparent fluorite crystal with blue phantom zoning at the center terminatio...

from Hunza Valley, Gilgit-Baltistan, Pakistan   Transparent to translucent deep pink hexagonal fluorapatite crystal on an intergrown cluster of mus...

From Nasik District, Maharashtra, India Penetrating twinned crystals of transparent golden yellow calcite with silky luster faces and sharp termina...

From Rosiclase Level, Minerva #1 Mine, Cave-in-Rock District, Hardin County, IllinoisTransparent vibrant blue cubic fluorite crystal. Has glassy lu...

From Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, MichiganLustrous translucent parallel scalenohedral calcite crystal...

From Edong Mining District, Daye, Hubei, China Large cluster of scalenohedral calcite with a secondary coating of lustrous iridescent metallic chal...