Polished Bull's Eye - South Africa - Tumbled Stones 4.5cm / 37g / BF79

BULL'S EYE belongs to the silicate group. It contains mainly silicon and has the same chemical formula as Quartz. It is a variety of chalcedony. It occurs in massive microcrystalline form. It is a very hard stone. The alternating bands come from the combination with another iron-rich mineral, Riebeckite. There are several types of eyes: TIGER'S EYE, BULL'S EYE (most often heated Tiger's Eye), CAT'S EYE, HAWK'S EYE, IRON'S EYE.

Unique piece - Contractual photos

Origin: tumbled stones from South Africa

Dimensions: 4.5 x 2.9 cm

Weight: 37 g