BISMUTOCOLUMBITE


Meaning of BISMUTOCOLUMBITE in English

General Information:

Chemical Formula:

Bi(Nb,Ta)O4

Composition:

(Molecular Weight = 502.81 gm)

Tantalum 17.99 % Ta

Niobium 27.72 % Nb

Bismuth 41.56 % Bi

Oxygen 12.73 % O

Empirical Formula:

BiNb1.5Ta0.5O4

IMA Status:

Approved IMA 1990

Physical Properties:

Cleavage:

[001] Perfect

Color:

black.

Density:

7.56

Diaphaniety:

Subtranslucent to Opaque

Hardness:

5.5 - Knife Blade

Luster:

Sub Metallic

Streak:

yellowish brown

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .