Jasper

Jasper is a form of Chalcedony.
 

Mineral Species: Silicates

Chemical Formula: SiO₂

Mohs Scale Hardness: 6 - 7

Location: Worldwide.

Typical Appearance: Varies.
 

There are many types of Jasper including:
 - Brecciated Jasper - Jasper fragments naturally cemented together by another material.
 - Leopard Skin Jasper - Light tan Jasper with rings similar appearance to a leopard.
 - Mookaite Jasper - Yellow and red Jasper combination from Australia.
 - Ocean Jasper - Madagascan stone usually green and brown with small tight ring formations.
 - Picture Jasper - Usually a light brown jasper with dark markings.
 - Poppy Jasper - Yellow jasper with red concentric rings.
 - Ribbon Jasper - Jasper with thick banded lines.
 - Zebra Jasper - Dark brown Jasper with lighter brown to white banding lines.