This listing is for 6 pieces BLACK ONYX  Faceted Rice beads or pendants.  It is drilled through the center.  This listing is for the exact stones shown in the photo.

Approx. weight 0.4 ozs =56.69 carats & size 14x9 mm.

Onyx is a Chalcedony Quartz that is mined in Brazil, India, California and Uruguay. It has a fine texture and black color. However, some Onyx also displays white bands or ribbons against a black or brown background and this variety is known as "Sardonyx". The name derives from the Greek word "onux" which means "fingernail" or "claw". 

Originally, almost all colors of Chalcedony from white to dark brown and black were called "Onyx". Today when we think of Onyx we often preface the word with "black" to distinguish it from other varieties of that come in white, reddish brown, brown and banded. Onyx registers 6.5 on the Moh’s scale of hardness. Most of the Black Onyx that is commercially available today is color enhanced (heated and dyed) to increase its depth of color.