Celestine: Celestine appears as colorless, or pale blue, and is transparent to translucent, and has two directi... (read full)

Cassiterite: Cassiterite may form as short or slender prismatic, or bipyramidal, elbow-shaped crystals. It has a ... (read full)

Carnelian: Carnelian is a variety of chalcedony, which is translucent and is red to reddish-brown. It may also ... (read full)

Calcite: Of all minerals, calcite is by far the richest in forms. It appears as rhombohedral, scalenohedral, ... (read full)

Smoky Quartz: Smoky or Brown Quartz is a commonly occurring quartz mineral that gets it's name from the smoky or c... (read full)

Brazilianite: Brazilianite is a soft and brittle mineral that in general does work very well as a gemstone. It's s... (read full)

Bloodstone: Bloodstone is a member of the Chalcedony group. Why is it called Bloodstone? Well because in polishe... (read full)

Beryllonite: Beryllonite is a clear gem/mineral that gets its name from its high content of beryllium. There are ... (read full)

Benitoite: Benitoite is a rare gemstone / mineral that fluoresces when lit by black lights. It gets its name fr... (read full)

Barite: Barite also called Baryte or heavy spar is a clear to yellowish to blue mineral that is very soft an... (read full)