Meaning of ALUMOHYDROCALCITE in English

ALUMOHYDROCALCITE

General Information:

Chemical Formula:

CaAl2(CO3)2(OH)4·3(H2O)

Composition:

(Molecular Weight = 336.13 gm)

Calcium 11.92 % Ca

Aluminum 16.05 % Al

Hydrogen 3.00 % H

Carbon 7.15 % C

Oxygen 61.88 % O

Empirical Formula:

CaAl2(CO3)2(OH)4·3(H2O)

Environment:

Secondary mineral associated with allophane.

IMA Status:

Accepted IMA 1976

Locality:

Khakassky district, Russia.

Name Origin:

Named after its chemical composition.

Physical Properties:

Cleavage:

[100] Perfect, [010] Imperfect

Color:

chalky white, bluish white, violet, light yellow, or gray.

Density:

2.23

Diaphaniety:

Transparent to subtranslucent

Habits:

Spherical - Spherical, rounded aggregates., Acicular - Occurs as needle-like crystals., Massive - Fibrous - Distinctly fibrous fine-grained forms.

Hardness:

2.5 - Finger Nail

Luster:

Vitreous (Glassy)

Streak:

white

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .