chondrodite

{{Infobox mineral | name = Chondrodite | category = Nesosilicates | boxwidth = 24 | boxbgcolor = | image = Chondrodite-225224.jpg | imagesize = 260px | caption = | formula = | IMAsymbol=Chn | molweight = 351.6 g/mol | strunz = 9.AF.45 (10th edition) 8/B.04-20 (8th edition) | dana = 52.3.2b.2 | system = Monoclinic | class = Prismatic (2/m) (same H-M symbol) | symmetry = P21/a | color = Yellow, orange, red or brown, rarely colorless | habit = Typically anhedral masses or grains, or as plates flattened on {010}, {001} or {100}. | lattice = | twinning = Simple or multiple twinning common on {001}, also reported on {105} and {305}. | cleavage = Poor to good on (001) | fracture = Conchoidal to uneven | tenacity = Brittle | mohs = 6 to 6.5 | luster = Vitreous to greasy | refractive = nα = 1.592 – 1.643, nβ = 1.602 – 1.655, nγ = 1.619 – 1.675, | opticalprop = Biaxial(+) | birefringence = 0.027 – 0.032 | pleochroism = X golden yellow to orange, Y and Z light yellow to almost colorless | streak = Grey or yellow | gravity = 3.1 to 3.26 | density = | melt = | fusibility = | diagnostic = | solubility = Soluble in HCl and H2SO4 | diaphaneity = Translucent | other = Some specimens fluoresce orange yellow under shortwave and orange under longwave UV. Not radioactive. | references = }}

Chondrodite is a nesosilicate mineral with formula . Although it is a fairly rare mineral, it is the most frequently encountered member of the humite group of minerals. It is formed in hydrothermal deposits from locally metamorphosed dolomite. It is also found associated with skarn and serpentinite. It was discovered in 1817 at Pargas in Finland, and named from the Greek for "granule", which is a common habit for this mineral.