US$ 20.00
This great specimen was obtained in Afghanistan for Rocks and Things
Mineral class: iron oxide
goddess-like energy
phyllosilicate
Colour: black
Aquamarine with three Micas in Feldspar matrix 311ct 62.3g Moss Agate This great specimen was obtainedThree Micas This Aquamarine with three Micas in Feldspar matrix weighs 311ct or 62. 3g. Its original conditions of variable heat, pressure and supply of elements resulted in the formation of Aquamarine and (at least) three different micas in a Feldspar matrix. The three Micas that are readily recognisable are Lepidolite, Muscovite and Phlogopite. Phlogopite is related to the more common Biotite. It has Magnesium, rather than iron in its chemical
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