
General Information:

Chemical Formula:
Cu3Te++++++O4(OH)4

Composition:
(Molecular Weight = 450.26 gm)
Copper 42.34 %
CuTellurium 28.34 %
TeHydrogen 0.90 %
H Oxygen 28.43 %
O 
Empirical Formula:
Cu3(TeO4)(OH)4

Environment:
In cracks in altered rhyolite.

IMA Status:
Approved IMA 1975

Locality:
Bambollita mine, Moctezuma, Sonora, Mexico.

Name Origin:
Named for the Nahuatl for "bunches of grapes", in allusion to the appearance of the green spherules of the mineral.
Physical Properties:

Color:
green or emerald green.

Density:
4.65

Habits:
Spherical - Spherical, rounded aggregates., Botryoidal - "Grape-like" rounded forms (e.g.. malachite)., Radial - Crystals radiate from a center without producing stellar forms (e.g. s tibnite)

Hardness:
4 - Fluorite

Luminescence:
Non-fluorescent.

Streak:
light green
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