HALOTRICHITE


Meaning of HALOTRICHITE in English

General Information:

Chemical Formula:

Fe++Al2(SO4)4·22(H2O)

Composition:

(Molecular Weight = 890.40 gm)

Aluminum 6.06 % Al

Iron 6.27 % Fe

Hydrogen 4.98 % H

Sulfur 14.41 % S

Oxygen 68.28 % O

Empirical Formula:

Fe2+Al2(SO4)4·22(H2O)

Name Origin:

From the Latin, halotrichum ="hairy salt."

Physical Properties:

Cleavage:

[010] Indistinct

Color:

colorless, green, gray white, yellow, or white.

Density:

1.78 - 1.9, Average = 1.84

Diaphaniety:

Transparent to translucent

Habits:

Fibrous - Crystals made up of fibers., Encrustations - Forms crust-like aggregates on matrix.,

Hardness:

1.5-2 - Talc-Gypsum

Luminescence:

None.

Luster:

Silky

Streak:

white

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .