General Information:
Chemical Formula:
NaFe++Ba2Ce2Ti2[Si4O12]2 O2(OH)·(H2O)
Composition:
(Molecular Weight = 1,388.16 gm)
Barium 19.79 % Ba
Sodium 1.66 % Na
Cerium 20.19 % Ce
Titanium 6.90 % Ti
Iron 4.02 % Fe
Silicon 16.19 % Si
Hydrogen 0.15 % H
Oxygen 31.12 % O
Empirical Formula:
NaFe2+Ba2Ce2Ti2(Si4O12)2O2·(H2O)
IMA Status:
Approved IMA 1987
Locality:
Dallas Gem mine, San Benito County, California, USA.
Name Origin:
Named after its orthorhombic crystal structure and the relationship to joaquinite (named for Joaquin Ridge, Diablo Range, California, USA).
Physical Properties:
Cleavage:
[001] Good
Color:
yellow or light brown.
Density:
3.68
Diaphaniety:
Transparent
Hardness:
5.5 - Knife Blade
Luster:
Vitreous (Glassy)
More details...