General Information:
Chemical Formula:
Ag2HgS2
Composition:
(Molecular Weight = 480.46 gm)
Silver 44.90 % Ag
Mercury 41.75 % Hg
Sulfur 13.35 % S
Empirical Formula:
Ag2HgS2
IMA Status:
Approved IMA 1983
Physical Properties:
Color:
light gray, black, or silver gray.
Density:
7.85
Diaphaniety:
Opaque
"help.bmp"> Empirical Formula:
Al2SiO3(OH)4
Environment:
Principally in soils derived from volcanic ash.
IMA Status:
Approved IMA
Locality:
Imogo soil, Hitoyoshi, Kumamoto Prefecture, Japan.
Name Origin:
Named for the locality.
Physical Properties:
Color:
yellowish white, light brownish yellow, blue, green, or brown.
Density:
2.7
Diaphaniety:
Transparent
Habits:
Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite)., ,
Hardness:
2-3 - Gypsum-Calcite
Streak:
white
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