• Webster's Revised Unabridged Dictionary
    • n Torbernite (Min) A mineral occurring in emerald-green tabular crystals having a micaceous structure. It is a hydrous phosphate of uranium and copper. Called also copper uranite, and chalcolite.
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Century Dictionary and Cyclopedia
    • n torbernite A native phosphate of uranium and copper, occurring in square tabular crystals of a bright-green color, pearly luster, and micaceous cleavage. Also called chalcolite, and copper uranite.
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Webster's Revised Unabridged Dictionary
So named after Torber, Bergmann, a Swedish chemist