Blue Haüyne With Sanidine Crystals

Blue Haüyne With Sanidine Crystals
Excellent Intensive Blue Haüyne With Sanidine Crystals. Photo Copyright © Volker Betz

Excellent intensive blue and gemmy crystals of haüyne in a vug of a sanidinite ejection block.
Haüyne (pronounced ah-WEEN) is a rather rare mineral belongs to the sodalite mineral group, which includes sodalite, haüyne, lazurite (a sulfide-bearing haüyne variety), and nosean. Together, these minerals comprise the popular gem rock known as lapis lazuli.

Haüynes have a slightly blueish to colorless streak. Since streak testing can damage or destroy a specimen and most gemstones leave a colorless streak, don't try this test on suspected haüynes.
Excellent intensive blue and gemmy crystal of haüyne in a vug of a sanidinite ejection block.

Haüyne
Formula: Na3Ca(Si3Al3)O12(SO4)
System: Isometric
Colour: Blue, white, grey, ...
Lustre: Vitreous, Greasy
Hardness: 5½ - 6




Next Post Previous Post