Diamond 2-4mm Chip Black- 15-16 InchDiamond is a rare, naturally occurring mineral composed of pure carbon. Although most people think of diamonds as colorless, they actually occur in almost every color! Also, many people believe that diamonds are formed from coal, but it is not true. Diamonds actually form at high temperatures and pressures that occur in Earth's mantle about 100 miles below Earth's surface.

malachite and a variety of iron oxide minerals

However in some regions

red and white to to as well as for its opacity and patterns

Moss Agate is a variety of Chalcedony

consisting of opaque rust to red glass with tiny flecks of glittering copper suspended within it

” Tourmaline is unusual in that it is both pyroelectric and piezoelectric

is aptly named for its shades of gold

The blue color

Due to its color and clarity

Pietersite has been called the Tempest Stone for its colors of deep blue and gray with metallic gold and flashes of brilliant chatoyancy as it catches the light

this semi-precious variety of quartz is found in many locations around the world

with occasional inclusions of Black Tourmaline that crisscross the stone in fibrous patterns