Calco-alkaline granite
Michel Reference
DZ 1250
Stanley Reference
DZ 1285
Yvert Reference
DZ 1201
Scott Reference
DZ 1155
Themes
Flora
Description
Most of the earth's crust is made up of granite. It is a rock typical of the depths of the continental crust formed following the cooling and crystallization of magma a few kilometers deep.
The variety of calc-alkaline granite includes light minerals, such as potassium feldspar, plagioclase and quartz, and dark minerals called ferromagnesian minerals, which are black mica (biotite) and green amphibole (hernblende).
It is often used as a building material or facing stone.
The variety of calc-alkaline granite includes light minerals, such as potassium feldspar, plagioclase and quartz, and dark minerals called ferromagnesian minerals, which are black mica (biotite) and green amphibole (hernblende).
It is often used as a building material or facing stone.
Expiration date
30/04/2007
Size
30 x 40 mm
Colors
Polychrome
Designer
Kamardine Krim
Printers
Bank of Algeria Printing House
Perforation
13½ x 14
Printing
Offset
Face value
20,00 DA
Mint Value ($)
—
Used Value ($)
—
Print run
300 000 exemplaires
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