Rock salt
Michel Reference
DZ 821
Stanley Reference
DZ 838
Yvert Reference
DZ 781
Scott Reference
DZ 710
Themes
Flora
Description
Rock salt or halite
It is sodium chloride (NaCl) which crystallizes into cubes with a glassy shine.
Generally colorless, it is sometimes white or red.
Salt is found in ancient marine sediments formed by evaporation.
Light, it rises to the surface through faults (salt rocks of Djelfa, El Outaya).
He is currently training in the sebkhas.
Rock salt is widely used by the chemical industry which uses it as a raw material, particularly for the preparation of sodium compounds, chlorine and chlorine compounds.
It is sodium chloride (NaCl) which crystallizes into cubes with a glassy shine.
Generally colorless, it is sometimes white or red.
Salt is found in ancient marine sediments formed by evaporation.
Light, it rises to the surface through faults (salt rocks of Djelfa, El Outaya).
He is currently training in the sebkhas.
Rock salt is widely used by the chemical industry which uses it as a raw material, particularly for the preparation of sodium compounds, chlorine and chlorine compounds.
Expiration date
07/11/1985
Size
27 x 34.6 mm
Colors
Polychrome
Designer
Ali Kerbouche
Printers
Courvoisier (Helio Courvoisier) S. A.
Perforation
12¼ x 12½
Printing
Photogravure
Face value
0,70 DA
Mint Value ($)
—
Used Value ($)
—
Print run
300 000 exemplaires
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