Carborundum Crystals Natural malachite specimens are a

Natural malachite specimens are a staple in our galleries

and mordenite

This is one of our larger examples of Moroccan prehnite

This can cause a wide range of shapes

Vanadite specimens are very popular

Carborundum Crystals Natural malachite specimens are aYou may have heard of carborundum before. This mineral is often used in many manufacturing processes and home projects. This compound has been mass produced as a crystal and powder since the late 1800s. While it does occur naturally as the mineral moissanite, these lab grown specimens have a special flare to them that just draws you in. The first naturally occurring moissanite was discovered as a component of the Canyon Diablo Meteorite in Arizona,