Calcite and Pyrite 29fc2b85c0faccb304cdda137f23fbc2 It is composed of Olivine

It is composed of Olivine crystals and nickel-iron metal

natural colors of Zircon are widely varied

Spectacular

Leaves and other fossil plant specimens are unique in their simplicity and beauty

as a sharp blow causes pieces to "flake" off

Calcite and Pyrite 29fc2b85c0faccb304cdda137f23fbc2 It is composed of OlivineCalcite is one of the most common minerals which grows in a wide variety of different shapes, colors and translucencies. The mineral itself actually belongs to a calcite group of "related carbonates" that are "isomorphous" with each other. All members of the group crystalize in triangular formations, have perfect rhombohedron cleavages, and in transparent rhombohedrons, display strong double refractions. Aragonite and Calcite are similar in chemical