Sugar Quartz With Calcite Shark Tooth often including scale and other

often including scale and other soft tissue traces against a high contrast laminated limestone slab

The unique combination of smoky

These beautifully shaped formations come from the Leiping mine in Southeastern China

petrified wood can display an enormous variety of colors

textures and patterns

Sugar Quartz With Calcite Shark Tooth often including scale and otherOne of the most common minerals on earth, Calcite is a form of Calcium Carbonate and is one of the primary components in limestone. It is found in a vast array of forms, from prismatic crystals to fibrous wisps. Calcite is clear naturally but it can be found in a variety of brilliant colors due to the presence of chemical impurities during formation. These large, showy specimens contain chunky calcite crystals of exceptional shape draped within a