Meaning of AMMONIOALUNITE in English

AMMONIOALUNITE

General Information:

Chemical Formula:

(NH4)Al3(SO4)2(OH)6

Composition:

(Molecular Weight = 393.15 gm)

Aluminum 20.59 % Al

Hydrogen 2.56 % H

Sulfur 16.31 % S

Nitrogen 3.56 % N

Oxygen 56.97 % O

Empirical Formula:

(NH4)Al3(SO4)2(OH)6

Environment:

Acidic hot springs with temperatures below 100 deg C and low potassium content of the waters.

IMA Status:

Approved IMA 1987

Locality:

The Geysers, Sonoma County, California, USA.

Name Origin:

Named for its composition (Ammonia, Al,).

Physical Properties:

Cleavage:

[???] Good

Color:

gray white or white.

Density:

2.4

Diaphaniety:

Transparent to Translucent

Habits:

Efflorescences - Crystals covering matrix, generally produced from transpiro-evaporation., Massive - Granular - Common texture observed in granite and other igneous rock., Rhombohedra l Crystals - Occurs as well-formed cryst

Hardness:

2-3 - Gypsum-Calcite

Luminescence:

Non-fluorescent.

Luster:

Vitreous (Glassy)

Streak:

white

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .