资料来源 : pyDict

褐帘石

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Allanite \Al"lan*ite\, n. [From T. Allan, who first
   distinguished it as a species.] (min.)
   A silicate containing a large amount of cerium. It is usually
   black in color, opaque, and is related to epidote in form and
   composition.