Sericite schist
Michel Reference
DZ 1251
Stanley Reference
DZ 1286
Yvert Reference
DZ 1202
Scott Reference
DZ 1156
Themes
Flora
Description
It is a metamorphic rock which is easily divided into thin plates (schist or slate flow) with a lustrous shine.
The schistosity surfaces are essentially formed by sericite which is a white mica in small shiny flakes.
The other minerals (quartz and plagioclase) are not visible to the naked eye. The slates used to cover roofs or formerly used by schoolchildren for writing with chalk are a variety of schist.
The schistosity surfaces are essentially formed by sericite which is a white mica in small shiny flakes.
The other minerals (quartz and plagioclase) are not visible to the naked eye. The slates used to cover roofs or formerly used by schoolchildren for writing with chalk are a variety of schist.
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
24,00 DA
Mint Value ($)
—
Used Value ($)
—
Print run
300 000 exemplaires
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