Cubic Zirconia Synthetic Facet / Faceting Rough


Cubic Zirconium

ubic Zirconia parcel

 

 

 

 

 

 

Color: All ranges, including color changes
Moh’s Hardness: 8.25-8.5
Refractive index: 2.14-2.20
Critical Angle: 27.86°
Specific Gravity: 5.7
Cleavage: None
Fracture: Sub-conchoidal, brittle
Dispersion: .06
Heat Sensitivity: Low
Birefringence (double refraction): None
Crystal Structure: Isometric

Treatments: None

What I prefer to polishing with: Zinc laps with 8,000 pre-polish and 50,000 polish.

Jeff’s Comments: CZ manufactured in the US and Britain is generally more consistent and having less polishing problems.

Design Links: 4-Way Stop – This is great for saturated rough if you have a piece that will work in the shape…
Princess – Nice in about any material
Brilliant Pear – Good in any color

 

Gram Faceting Archive of Information
This edited version of an article by the late Jeff Graham is part of a special archived informational series from Gram Faceting. Used with permission.