Gem, Rock, and Mineral Postage Stamps Featuring

Mineral Name: Scolecite

Composition: Hydrated calcium aluminum silicate

Nomenclature: Named from the Greek word "skolec" which means "worm," a reference to the mineral's reaction to a blowpipe flame.

Industrial Uses: Chemical filters.

Additional Notes: Scolecite is a member of the Zeolite group of minerals, and forms inside the bubble-voids within volcanic rocks.

Iceland : Scott 863 : 45 króna : 3 Sep 1998