Fer is a red
wine grape that is grown primarily in southwestern
France and is most notable for its role in Madiran, Gaillac, and Aveyron wines. In
Béarn, the grape is commonly used in local wines under the name Pinenc. The vine is noted for its hard wood and difficulty in pruning. The French grape is not related to the
Malbec clone of the same name that is commonly planted in
Argentina.
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fer.

General Information:

Chemical Formula:
Fe

Composition:
(Molecular Weight = 55.85 gm)
Iron 100.0 %
Fe
Empirical Formula:
Fe0+

Environment:
In meteorites and rarely basalts that have intruded carbon-rich sediments.

IMA Status:
Approved IMA (Dana # Added)

Locality:
Asteroid fragments and in German and Greenland basalts.

Name Origin:
Probably Anglo-Saxon in origin.
Physical Properties:

Cleavage:
[001] Perfect, [010] Perfect, [100] Perfect

Color:
iron black, dark gray, or steel gray.

Density:
7.3 - 7.9, Average = 7.6

Diaphaniety:
Opaque

Habits:
Massive - Uniformly indistinguishable crystals forming large masses., Granular - Generally occurs as anhedral to subhedral crystals in matrix., Disseminated - Occurs in small, distinc t particles dispersed in matrix.

Hardness:
4-5 - Fluorite-Apatite

Luminescence:
None.

Luster:
Metallic

Streak:
gray
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