Sonolite

A variety of Minerals

Sonolite specimen - rock identification

What is Sonolite?

Sonolite is transparent to translucent and is red-orange, pinkish brown to dark brown in color and colorless in thin sections. The mineral has a granular habit or occurs as prismatic to anhedral crystals up to 2.5 cm (0.98 in). Sonolite is the manganese analogue of clinohumite, a dimorph of jerrygibbsite, and a member of the humite group. The mineral occurs in metamorphosed manganese-rich deposits. Sonolite has been found in association with calcite, chlorite, franklinite, galaxite, manganosite, pyrochroite, rhodochrosite, tephroite, willemite, and zincite.

Optical Properties

Refractive Index
1.763-1.793
Optical Character
Biaxial negative

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Sonolite Localities Map

See where Sonolite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview
North ZoneCentral RidgeSouth Basin

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Quick Facts

Physical Properties

Color
Red-orange, pinkish brown to dark brown
Hardness (Mohs)
5.5

Chemical Properties

Chemical Formula
Mn2+9(SiO4)4(OH)2
Elements
H, Mn, O, Si
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