Description: These black onyx are mostly off cuts, BUT they are still good. There are no fractures, little to no matrix and no cracks. Almost all material is useable. They are all slabbed already for you, so your yield will be maximized.
Chemical Composition: SiO2
Grade: Lapidary Grade
Appearance: Translucent/ Opaque
Cost per Gram: $0.19
Approximate Size of 1 pc: 32mm x 25mm x 4mm
Approximate Weight of 1 pc: 5g
Rough is rough. We do our best to grade and describe pieces in the lot, but ultimately, they all differ.