資料來源 : pyDict

可彎砂岩

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Itacolumite \It`a*col"u*mite\, n. [From Itacolumi, a mountain of
   Brazil.] (Min.)
   A laminated, granular, siliceous rocks, often occurring in
   regions where the diamond is found.