Stamp: Volcanic Obsidian (Indonesia 2000)

Volcanic Obsidian (Indonesia 2000)

01 March (Indonesia ) within release Precious Stones goes into circulation Stamp Volcanic Obsidian face value 2000 Indonesian rupiah

Stamp Volcanic Obsidian in catalogues
Michel: Mi:ID 1980
Stamp Number: Sn:ID 1890
Yvert et Tellier: Yt:ID 1762
Stanley Gibbons: Sg:ID 2595

Stamp is square format.

Also in the issue Precious Stones:

Data entry completed
56%
Stamp Volcanic Obsidian in digits
Country: Indonesia
Date: 2000-03-01
Print: Offset and Lithography
Perforation: comb 13½ x 12
Emission: Commemorative
Format: Stamp
Face Value: 2000 Indonesian rupiah

Stamp Volcanic Obsidian it reflects the thematic directions:

A gemstone (also called a fine gem, jewel, precious stone, semiprecious stone, or simply gem) is a piece of mineral crystal which, when cut or polished, is used to make jewelry or other adornments. Certain rocks (such as lapis lazuli, opal, and obsidian) and occasionally organic materials that are not minerals (such as amber, jet, and pearl) may also be used for jewelry and are therefore often considered to be gemstones as well.Most gemstones are hard, but some softer minerals such as brazilianite may be used in jewelry because of their color or luster or other physical properties that have aesthetic value. However, generally speaking, soft minerals are not typically used as gemstones by virtue of their brittleness and lack of durability

In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid substance with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form

Stamp, Volcanic Obsidian, Indonesia,  , Gemstones, Minerals