General Information:
Chemical Formula:
PbMn3Al4(CO3)4(SO4)O5·5(H2O)
Composition:
(Molecular Weight = 986.11 gm)
Manganese 16.71 % Mn
Aluminum 10.94 % Al
Hydrogen 1.02 % H
Lead 21.01 % Pb
Carbon 4.87 % C
Sulfur 3.25 % S
Oxygen 42.18 % O
Empirical Formula:
PbMn2+3Al4(CO3)4(SO4)O5·5(H2O)
Environment:
Found as fissure fillings with cerrusite in sooty pyrolusite and Fe oxides in polymetallic ore zone in granodiorite.
Locality:
Sardab, E of Altyn-Topkansk ore field, Kuraminsk Mountains, Kazakhstan.
Name Origin:
Named after B. N. Nasledov (1891-1942) of Russia.
Physical Properties:
Color:
snow white.
Density:
3.069
Habits:
Oolitic -
Hardness:
2 - Gypsum
Luster:
Silky
Streak:
white
More details...