See also:

• TORBERNITE (or cupro-uranite)

TORBERNITE (or cupro-uranite)  , a See also:

• MINERAL

mineral which is one of the " See also:

• URANIUM [symbol U, atomic weight 238.5 (0=16)]

uranium micas "; a hydrous uranium and See also:

• COPPER (symbol Cu, atomic weight 63.1, H=1, or 63.6, O = 16)

copper phosphate, Cu(UO2)2(PO4)2+12H2O . Crystals are tetragonal and have the See also:

• FORM (Lat. forma)

form of square plates, which are often very thin . There is a perfect micaceous cleavage parallel to the basal See also:

• PLANE

plane, and on this See also:

• FACE (from Lat. fades, derived either from facere, to make, or from a root fa-, meaning " appear "; cf. Gr. cbatvstv)

face the lustre is pearly . The See also:

• BRIGHT, JOHN (1811-188g)
• BRIGHT, SIR CHARLES TILSTON

bright grass-See also:

• GREEN, A
• GREEN, ALEXANDER HENRY (1832—1896)
• GREEN, DUFF (1791—1875)
• GREEN, JOHN RICHARD (1837—1883)
• GREEN, MATTHEW (1696-1737)
• GREEN, THOMAS HILL (1836-1882)
• GREEN, VALENTINE (1739–1813)
• GREEN, WILLIAM HENRY (.1825–1900)

green See also:

• COLOUR (Lat. color, connected with celare, to hide, the root meaning, therefore, being that of a covering)

colour is a characteristic feature of the mineral . The hardness is 22 and the specific gravity 3'5 . The radio-activity of the mineralis greater than that of some specimens of See also:

• PITCHBLENDE, or URANINITE

pitchblende . It was first observed in 1772 at Johanngeorgenstadt in See also:

• SAXONY
• SAXONY (Ger. Provinz Sachsen)

Saxony, but the best examples are from Gunnislake near Calstock and See also:

• REDRUTH

Redruth in See also:

• CORNWALL

Cornwall . The name torbenite is after Torbern See also:

• BERGMAN, TORBERN OLOF (1735-1784)

Bergman: chalcolite is a synonym . (L . J .