Meaning of ALMANDINE in English

ALMANDINE

General Information:

Chemical Formula:

Fe++3Al2(SiO4)3

Composition:

(Molecular Weight = 497.75 gm)

Aluminum 10.84 % Al

Iron 33.66 % Fe

Silicon 16.93 % Si

Oxygen 38.57 % O

Empirical Formula:

Fe2+3Al2(SiO4)3

Environment:

Metamorphic and pegmatitic rocks.

Locality:

TL: Alabanda in Asia Minor.

Name Origin:

Named after its locality.

Physical Properties:

Cleavage:

None

Color:

brown, brownish red, red, black, or black red.

Density:

4.09 - 4.31, Average = 4.19

Diaphaniety:

Transparent to Subtransparent to translucent

Habits:

Massive - Lamellar - Distinctly foliated fine-grained forms., Granular - Generally occurs as anhedral to subhedral crystals in matrix.,

Hardness:

7-8

Luminescence:

Non-fluorescent.

Luster:

Vitreous - Resinous

Streak:

white

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .