Meaning of AMBLYGONITE in English

AMBLYGONITE

General Information:

Chemical Formula:

(Li,Na)Al(PO4)(F,OH)

Composition:

(Molecular Weight = 151.41 gm)

Sodium 3.80 % Na

Lithium 3.44 % Li

Aluminum 17.82 % Al

Phosphorus 20.46 % P

Hydrogen 0.17 % H

Oxygen 44.91 % O

Fluorine 9.41 % F

Empirical Formula:

Li0.75Na0.25Al(PO4)F0.75(OH)0.25

Name Origin:

From the Greek amblys - "blunt" and goni - "angle."

Physical Properties:

Cleavage:

[100] Perfect, [110] Good, [011] Distinct

Color:

white, yellow, gray, bluish gray, or greenish gray.

Density:

2.98 - 3.11, Average = 3.04

Diaphaniety:

Transparent to Subtransparent to translucent

Habits:

Columnar - Forms columns, Euhedral Crystals - Occurs as well-formed crystals showing good external form., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Hardness:

5.5-6 - Knife Blade-Orthoclase

Luminescence:

None.

Luster:

Vitreous - Pearly

Streak:

white

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .