Gem, Rock, and Mineral Postage Stamps Featuring

Mineral Name: Struvite

Composition: Hydrated ammonium magnesium phosphate

Nomenclature: Named after Heinrich von Struve, a Russian diplomat.

Industrial Uses: Scientific interest.

Additional Notes: The glass-like crystals or grains that are occasionally found in canned seafood, like tuna and salmon, are struvite. Some kidney stones are struvite.

Central Africa : Scott 1262c : 600 francs : 1998