Sog. HILDEDARD Jasper is a jasper VARIETY with parts of ACHAT. The correct mineral name would be JASPACHAT.
The color of the jasper is yellow-red-green and the ACHAT-CHALCEDON parts are white.
These stones were found over 10 years ago - TIDIKELT in ALGERIA
Weight: 1.2 kilograms Dimensions: 13 x 9 x 8 cm