This semi-precious stone is fascinating. A rare opal, sprouting in a piece of petrified wood.
Mineral Chart: Includes all 6 crystal classes and presents the physical properties: hardness, habit, luster, cleavage, specific gravity, color, fluorescence, and streak.
Quartz with Fluorite inclusions ♥
Pallasite - a variety of Meteorite that has olivine crystals embedded inside a nickel iron matrix. From Esquel, Argentina
Burgess Shale fossil, Marrella splendens
This piece of our glorious planet is named "Velvet Beauty" found in 1890 in Bisbee Arizona -- azurite, malachite and copper