NAUMANNITE


Meaning of NAUMANNITE in English

General Information:

Chemical Formula:

Ag2Se

Composition:

(Molecular Weight = 294.70 gm)

Silver 73.21 % Ag

Selenium 26.79 % Se

Empirical Formula:

Ag2Se

Locality:

DE LAMAR

Physical Properties:

Cleavage:

[???] Perfect, [???] Perfect, Perfect

Color:

grayish black or iron black.

Density:

6.5 - 8, Average = 7.25

Diaphaniety:

Opaque

Habits:

Massive - Uniformly indistinguishable crystals forming large masses., ,

Hardness:

2.5 - Finger Nail

Luminescence:

Non-fluorescent.

Luster:

Metallic

Streak:

black

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .