Stone · 2 pieces
Onyx
Onyx is a banded chalcedony with straight, parallel layers; the name is also used for polished banded calcite.
Read about Onyx
What is jasper? The patterned stone family explainedWhat jasper actually is, how its patterns and pictures form, and why mookaite, dalmatian and bumblebee 'jasper' aren't quite the same stone.Khambhat: 4,500 years of Indian agate and carnelianThe Gujarat town that has cut agate and carnelian since the Harappan era: the Ratanpur mines, heat-treating carnelian, and beads that reached Mesopotamia.