floater

4

Azurite bow tie

A lovely spray of blue copper carbonate crystallised in what is now the mined out source of Touissit in Morocco. Crystals like these are called ‘floaters’ because they formed in a pocket without contact with the rock walls when carbonate rich water altered a primary copper deposit made of sulphides. The piece measures 5.0 x 3.5 x 1.5 cm.

Loz

Image credit: Spirifer Minerals