Matte Black Zebra Agate 34-38mm butterflies beads (ETB00317) Black Spinel

Matte Black Zebra Agate 34-38mm butterflies beads (ETB00317) Black SpinelBlack Zebra Agate Agate, which is also Chalcedony is known by many forms. No gemstone is more creatively colored and striped by nature than agate, chalcedony quartz that forms in concentric layers in a wide variety of colors and textures. Each individual agate forms by filling a cavity in host rock. As a result, agate often is found as a round nodule, with concentric bands like the rings of a tree trunk. The bands sometimes look like eyes, sometimes

Picasso Jasper

Other members of the cryptocrystalline silica family include agate

Both carnelian and sard are varieties of the silica mineral chalcedony colored by impurities of iron oxide

** One string about 14 pieces

or in a thick coating around it

Blood Stone Elephant beads 33-38mm (ETB00895)

Shaba Province

While they look sparkly and delicate

5mm (approx)

5 x 16 x 6

It is a form of chalcedony which includes minerals of a green colour embedded in the stone

even though the country is rich in agate