Micro Petroleum Quartz with Chalcedony

From the Condesa Mine in Santa Eulalia, Chihuahua, Mexico comes this Micro Petroleum Quartz with Chalcedony. “Micro petroleum quartz over chalcedony" describes a mineral formation where tiny quartz crystals containing liquid petroleum inclusions grew on a bed of chalcedony. The petroleum is inside the quartz, not the chalcedony, and the two are distinct but often found together. The term "micro petroleum quartz" refers to the quartz crystals themselves, while the chalcedony is the underlying material, a type of microcrystalline quartz. UV reactive under shortwave light and may phosphoresce.

This mineral measures 5.5” x 2.25” and weighs 164 grams (0.365 lbs.).

Disclaimer: This is a natural crystal sold as is and as you see it in its images and video. It is the exact one you will receive. It may contain natural imperfections. Please make sure to read the sizing, description, and return policy before purchasing Micro Petroleum Quartz with Chalcedony.