General Information:
Chemical Formula:
(Ag,Hg)I (?)
Composition:
(Molecular Weight = 257.95 gm)
Silver 31.36 % Ag
Mercury 19.44 % Hg
Iodine 49.20 % I
Empirical Formula:
Ag0.75Hg0.25I
Environment:
Found with other halides of silver and mercury. A questionable species.
Locality:
Chanarcillo, Atacama, Chile.
Name Origin:
Named in 1867 for S. F. Tocornal, rector of the University of Santiago, Chile.
Physical Properties:
Color:
yellow, bright yellow, gray green, or black.
Habits:
Massive - Granular - Common texture observed in granite and other igneous rock., ,
Luster:
Earthy (Dull)
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