Cacholong

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Opal \O"pal\, n. [L. opalus: cf. Gr. ?, Skr. upala a rock,
     stone, precious stone: cf. F. opale.] (Min.)
     A mineral consisting, like quartz, of silica, but inferior to
     quartz in hardness and specific gravity.
     [1913 Webster]
  


     Note: The {precious opal} presents a peculiar play of colors
           of delicate tints, and is highly esteemed as a gem. One
           kind, with a varied play of color in a reddish ground,
           is called the {harlequin opal}. The {fire opal} has
           colors like the red and yellow of flame. {Common opal}
           has a milky appearance. {Menilite} is a brown impure
           variety, occurring in concretions at Menilmontant, near
           Paris. Other varieties are {cacholong}, {girasol},
           {hyalite}, and {geyserite}.
           [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Cacholong \Cach"o*long\, n. [F. cacholong, said to be from Cach,
     the name of a river in Bucharia + cholon, a Calmuck word for
     stone; or fr. a Calmuck word meaning "beautiful stone"]
     (Min.)
     An opaque or milk-white chalcedony, a variety of quartz;
     also, a similar variety of opal.
     [1913 Webster]