orthorhombic pyroxene


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Related to orthorhombic pyroxene: amphibole

orthorhombic pyroxene

[¦ȯr·thə¦räm·bik pə′räk‚sēn]
(mineralogy)
A member of the mineral series enstatite-orthoferrosilite, crystallizing in the orthorhombic system, space group Pbca.