PLATYNITE


Meaning of PLATYNITE in English

General Information:

Chemical Formula:

(Bi,Pb)3(Se,S)4

Composition:

(Molecular Weight = 894.11 gm)

Bismuth 46.75 % Bi

Lead 23.17 % Pb

Selenium 26.49 % Se

Sulfur 3.59 % S

Empirical Formula:

Bi2PbSe3S

Environment:

Discredited as being a mixture of laitakarite and selenian galena.

IMA Status:

Discredited IMA 1999

Locality:

Falun, Dalecarlia, Sweden.

Name Origin:

Named from the Greek "to broaden", in allusion to its platy habit.

Physical Properties:

Cleavage:

[001] Good, [010] Good, [100] Good

Color:

gray, black, or white.

Density:

7.98

Diaphaniety:

Opaque

Habits:

Platy - Sheet forms (e.g. micas)., ,

Hardness:

2-3 - Gypsum-Calcite

Luster:

Metallic

Streak:

shining black

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .