STEPHANITE


Meaning of STEPHANITE in English

General Information:

Chemical Formula:

Ag5SbS4

Composition:

(Molecular Weight = 789.36 gm)

Silver 68.33 % Ag

Antimony 15.42 % Sb

Sulfur 16.25 % S

Empirical Formula:

Ag5SbS4

Name Origin:

Named after the Austrian Mining Director engineer, Archduke Stephan (1817-1867).

Physical Properties:

Cleavage:

[010] Imperfect, [021] Poor

Color:

lead gray or black.

Density:

6.2 - 6.3, Average = 6.25

Diaphaniety:

Opaque

Habits:

Pseudo Hexagonal - Crystals show a hexagonal outline., Tabular - Form dimensions are thin in one direction., Massive - Uniformly indistinguishable crystals forming large masses.

Hardness:

2-2.5 - Gypsum-Finger Nail

Luminescence:

None.

Luster:

Metallic

Streak:

black

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .