Mineral Species: Quartz var. Chocolate Jasper 

Chemical Formula: SiO2

Chemical Name: Silicon Dioxide

Mineral Class: Tectosilicate

Mineral Notes: Jasper is a variety of microcrystalline Quartz. It is a widely ocurring rock-building material found in many shapes and forms. It is one of the most commonly used materials, having uses in glass manufacture, jewellery, decoration and, in prehistoric times, for producing sparks to start fires.