Meaning of ZINCOHOGBOMITE in English

ZINCOHOGBOMITE

General Information:

Chemical Formula:

(Zn,Fe++)(2-2x)(Ti)xAl4O8

Composition:

(Molecular Weight = 335.37 gm)

Titanium 3.43 % Ti

Aluminum 32.18 % Al

Zinc 15.40 % Zn

Iron 10.82 % Fe

Oxygen 38.17 % O

Empirical Formula:

Zn0.79Fe0+0.65Ti0.24Al4O8

Environment:

Formed by breakdown of gahnite in diasporites (diaspore-bearting metabauxites) and emeries (corundum-bearing metabauxites).

IMA Status:

Approved IMA 1994 (Dana # Added)

Locality:

TL: Emory deposit at Kerketefs Mountain, Samos Island, Greece.

Name Origin:

Named as the dominant analogue of h”gbomite, found as the 8H and 16H polytypes.

Physical Properties:

Cleavage:

None

Color:

deep brown or black.

Density:

4.36

Diaphaniety:

Transparent to Opaque

Habits:

Euhedral Crystals - Occurs as well-formed crystals showing good external form., Pseudo Tetragonal - Crystals show a tetragonal shape.,

Hardness:

7 - Quartz

Luster:

Adamantine

Streak:

brownish

More details...

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