Mookaite

Lapidary material

Also called Mook jasper and Mookite

About it

Mottled red, mauve, and yellow silica rock built from the skeletons of tiny marine plankton (radiolarians). Mined near Mooka Creek in the Kennedy Ranges of Western Australia.

Type
Lapidary material
Group
Radiolarite (silicified)
Lustre
waxy, dull
Colours
red, mauve, yellow, cream, brown, mottled
Transparency
opaque
Cleavage and fracture
none; conchoidal fracture

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