|
SCOTT NO
|
N4072 1329
|
DATE OF ISSUE
|
2000 Jan 01
|
FACE VALUE
|
60ch
|
COUNTRY
|
Democratic people's republic Korea
|
|
|
DESCRIPTION
|
The stamp shows Graphite. It is one of the world's softest minerals. It occurs in igneous & metamorphic rocks. It is used for dry & wet lubrication & for chemical purposes. Its latest use is as a moderator to slow down neutrons in nuclear reactors.
|
|
|
MINERAL
|
Other
|
VARIATION
|
Error, Meter Mark, Block, Proof, First Day Cover, PC, Postal Stationery, Envelope
|
|
|