BY-SA 2.5 Creative Commons Attribution-Share Alike 2.5 truetrue English Pegmatite with blue corundum crystals determination method or standard: SHA-1...
Attribution 2.0 truetrue 24 August 2014 English Sodalite-aegirine-albite pegmatite specimen, Ice River Complex, an intrusion partly in Yoho National Park...
פגמטיט Date 7 June 2010 Source Own work. Based on the picture of Eurico Zimbres http://commons.wikimedia.org/wiki/File:Alkaline_pegmatite.jpg Author דקי...
alkaline pegmatite, near Évisa (Corsica, France).jpg English: Large crystals of dark riebeckite amphibole in a pegmatitic border of Permian alkaline granite...
DescriptionSaphire-cut.JPG Smalls sapphires from an alkaline pegmatite, Canaã Massif, Duque de Caxias, Rio de Janeiro, Brazil Date 1987 Source Own work...
commonly observed in & associated with alkaline igneous complexes and carbonatite bodies. Nepheline syenites are alkaline, intermediate intrusive igneous rocks...
Villiaumite frozen in the pegmatite without open cavities. The Villiaumite was formed very late in the development of the pegmatite often followed by Nahcolite...
Villiaumite frozen in the pegmatite without open cavities. The Villiaumite was formed very late in the development of the pegmatite often followed by Nahcolite...
Villiaumite frozen in the pegmatite without open cavities. The Villiaumite was formed very late in the development of the pegmatite often followed by Nahcolite...
Villiaumite frozen in the pegmatite without open cavities. The Villiaumite was formed very late in the development of the pegmatite often followed by Nahcolite...
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