ELBAITE


Meaning of ELBAITE in English

General Information:

Chemical Formula:

Na(Li,Al)3Al6(BO3)3Si6O18(OH)4

Composition:

(Molecular Weight = 916.68 gm)

Sodium 2.51 % Na

Lithium 1.89 % Li

Aluminum 19.13 % Al

Silicon 18.38 % Si

Boron 3.54 % B

Hydrogen 0.44 % H

Oxygen 54.11 % O

Empirical Formula:

NaLi2.5Al6.5(BO3)3Si6O18(OH)4

Environment:

Granitic pegmatites characterized by hydrothermal replacement.

Locality:

Island of Elba, Italy.

Name Origin:

Named after its locality.

Physical Properties:

Cleavage:

[1011] Indistinct

Color:

blue, colorless, green, yellow, or white.

Density:

2.9 - 3.2, Average = 3.05

Diaphaniety:

Transparent to translucent to opaque

Habits:

Striated - Parallel lines on crystal surface or cleavage face., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).,

Hardness:

7.5 - Garnet

Luminescence:

Piezoelectric.

Luster:

Vitreous (Glassy)

Streak:

white

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .