Red Diamond Calcite is a brick-red and transparent diamond calcite. It’s has large double terminated calcite crystals mixed with many more double terminated diamond calcite crystals of all different sizes. They’re double terminated which is triangular point’s at both ends. The crystals have sparkling brick-red, auburn and maroon hue’s inside and on top of the calcite crystals. These colors are produced by iron hematite inclusion and coatings that the specimen obtained during growth