alalite

[From Ala, a town a little south of Trent, in the Tyrol; and λίθος ( lithos ) = stone.] Min.: A variety of Malacolite or Diopside, which again stands in a similar relation to Pyroxene. It occurs in broad right-angled prisms, and is sometimes colourle , at others more or le green. Bouvoisin found it crystallised in twelve-sided prisms. A mineral almost the same, but having quadrangular prisms, he denominated Mu ite, from the Mu a Alp where it occurs. (MALACOLITE, DIOPSIDE.]