Please enable JavaScript to view this page properly.
Introduction
Classification
Repository
Library
English |
Български
Where am I? >
Home
>
Classification
> Cubic zirconia [synthetics]
Cubic zirconia [synthetics]
A cubic crystalline form of zirconium dioxide (ZrO
2
). A dense substance, with a specific gravity 5.6—6.0; relatively hard, 8—8.5; refractive index high at 2.15—2.18; dispersion very high at 0.058—0.066, exceeding that of diamond (0.044).
Cubic zirconia — specimen S-007
, photo © NMNHS
Material from ‘Repository’
1 specimen:
S-007
— 1.17 ct.
→
Gallery view
Gemmology — gemstones
Front page
|
Introduction
|
Classification
|
Repository
|
Library
© 2025
National Museum of Natural History, Sofia
(NMNHS)
Use of this website assumes acceptance of our
terms of use
.
The specimens illustrated in this site do not exist in the collections of the National Museum of Natural History, Sofia.