General Information:
Chemical Formula:
(Au,Ag)2Te4
Composition:
(Molecular Weight = 429.89 gm)
Silver 6.27 % Ag
Tellurium 59.36 % Te
Gold 34.36 % Au
Empirical Formula:
Au0.75Ag0.25Te2
Name Origin:
Named after Transylvania.
Physical Properties:
Cleavage:
[010] Perfect
Color:
yellowish silver white or white.
Density:
7.9 - 8.3, Average = 8.1
Diaphaniety:
Opaque
Habits:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline)., Skeletal - Crystals form crude outlines with missing faces., Platy - Sheet forms (e.g. micas).
Hardness:
1.5-2 - Talc-Gypsum
Luminescence:
None.
Luster:
Metallic
Streak:
steel gray
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