Beryl var: Heliodor

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Heliodor
A variety of Beryl Be₃Al₂Si₆O₁₈ Hexagonal

Heliodor, Murzinka, Russia 3,1cm	©

Introduction:


Heliodor
Afghanistan
Konar Province

Heliodor 4cm	© D&D Weinrich

Nuristan province sensu strictu became officially recognised in 2001 (wikipedia) or 2004 (statoids.com), but was already known for 10 years. It was formed from the northern parts of Laghman Province and Konar (Kunar) Province.
Note, however, that "Nuristan" is also the traditional name for the region that encompasses these three current provinces (i.e., NE Afghanistan) and the name is still often used in that fashion.
Konar Province covers most of the Afghan part of the Konar valley, and most of the valleys of its confluents. Only a small part of the lower valley, a few kilometers upstream of its confluence with the Kabul river near Jalalabad, belongs to Nangarhar Province. Depending on which confluents are considered an integral part of the valley, the area referred to as "Konar Valley" may cover anything between about two thirds and all of Konar Province, making it not only a rather vague but also an ill-defined locality description. Therefore, photos of specimens labelled as coming from Konar Valley should be placed under Konar Province.

Possibly/probably, many Heliodor specimens from Konar province are irradiated Aquamarine crystals.


Work in progress



Edited 8 time(s). Last edit at 04/27/2011 09:02PM by Harjo Neutkens.