SiO2 - Silicon Dioxide
Jasper is an opaque, impure Chalcedony, usually red but also yellow, green, and grayish blue. Often jasper is multi-colored. Jasper is a very pretty, inexpensive earth stone. It is usually worn as beads or cabochons. More on...
Colors: Rich clay red color, with a slight greyish-black matrix
Care and Treatment
The polish on Jasper will often be washed away in water. Clean with a soft dry cloth.
Jasper is often sealed with petroleum products.
Jasper has a hardness rating of 7.
Specific Gravity: 2.65 - 2.66
Star Stone Months
Leopard skin Jasper is said to bring one what they need; Poppy Jasper is said to help bring joy into life. Opalite Jasper is said to help one sleep.
Jasper was thought to drive away evil spirits and protect against snake and spider bites.
Jasper was known as the great "rain-bringer" in the fourth century.
Jasper is the US State Rock of Massachusetts.