sonolite

{{Infobox mineral | name = Sonolite | category = Silicate minerals | boxwidth = | boxbgcolor = | image = Zincite-Manganosite-Sonolite-21568.jpg | imagesize = 260px | caption = Sonolite (in bottom left corner) with zincite and manganosite | formula = Mn9(SiO4)4(OH,F)2 | IMAsymbol = Snl | molweight = | strunz = 9.AF.55 | dana = 52.3.2d.3 | system = Monoclinic | class = Prismatic (2/m) (same H-M symbol) | symmetry = P21/b | unit cell = a = 4.87 Å, b = 10.66 Å c = 14.28 Å β = 100.3°, Z = 2 | color = Red-orange, pinkish brown to dark brownColorless in thin section | habit = | twinning = Common, singular or lamellar on {101} | cleavage = | fracture = | tenacity = | mohs = 5.5 | luster = Vitreous, dull | polish = | refractive = nα = 1.765nβ = 1.778nγ = 1.787 | opticalprop = Biaxial (−) | birefringence = δ = 0.022 | 2V = 75° to 82° (measured) | dispersion = r > v | pleochroism = | fluorescence= | absorption = | streak = | gravity = | density = 3.82–4.00 (measured) | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = Transparent to translucent | other = | references = }}

Sonolite is a mineral with formula Mn9(SiO4)4(OH,F)2. The mineral was discovered in 1960 in the Sono mine in Kyoto Prefecture, Japan. In 1963, it was identified as a new mineral and named after the Sono mine.