Description
A type of onyx, which is an agate with parallel bands. Sardonyx has layers of brownish sard (red carnelian) alternating with lighter-color layers of onyx. Often used as a gemstone, it has been mined or gathered since before 2200 BCE.
Synonyms and Related Terms
onyx; quartz; agate; chalcedony
Other Properties
Fracture = conchoidal. Luster = vitreous to waxy. Streak = white.
Additional Information
Mineralogy Database: Quartz
|
Last updated on: 7/13/2009 11:38:13 AM
|
|
 |
|
