BORALSILITE


Meaning of BORALSILITE in English

General Information:

Chemical Formula:

Al16B6Si2O27

Composition:

(Molecular Weight = 1,144.71 gm)

Aluminum 37.71 % Al

Silicon 4.91 % Si

Boron 5.67 % B

Oxygen 51.71 % O

Empirical Formula:

Al16B6Si2O37

Environment:

Found in a tourmaline - quartz intergrowth in granitic pegmatite cutting granulite-facies metapelitic rocks, Structurally related to sillimanite.

IMA Status:

Approved IMA (Dana # Added)

Locality:

Stornes Peninsula, Larsemann Hills, Prydz Bay, east Antarctica. Almgjotheii in the aureole of the Rogaland intrusive complex, southwestern Norway.

Name Origin:

Named after its composition of (bo)ron, (al)uminum, and (sil)icon.

Physical Properties:

Cleavage:

[???] Fair, [???] Fair

Color:

white or colorless.

Density:

3.06

Diaphaniety:

Transparent

Habits:

Fibrous - Crystals made up of fibers., Aggregates - Made of numerous individual crystals or clusters.,

Luster:

Vitreous (Glassy)

Streak:

white

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .