Condor agate

Lapidary material SiO2

About it

Vividly coloured agate from Mendoza province in western Argentina, with bold banding often mixed with moss and plumes.

Type
Lapidary material
Group
Agate (chalcedony)
Formula
SiO2
Hardness (Mohs)
6.5–7
Specific gravity
2.57–2.64
Streak
white
Lustre
waxy, vitreous (glassy)
Crystal system
Trigonal
Colours
red, orange, yellow, purple, white, black
Transparency
translucent, opaque
Cleavage and fracture
none; conchoidal fracture

Typical values: real specimens vary. For more, see mindat.org.