Aquamarine with Pink Apatite on Muscovite

Beryl
Beryllium Aluminum Silicate Be3Al2SiO3

Beryl is an important ore mineral of beryllium. It is typically found in cavities in granite and pegmatite and is also associated with tin ores and mica schists

Bluish Beryls are known as aquamarine. Other beryls are emerald, morganite, and beryls that are red, brown, yellow and pale green. The variations in color exhibited by beryls are probably due to small included quantities of different metallic oxides. The shades of aquamarine have been ascribed to alkaline earths, influenced by ferric or chromic oxides.

Apatite
Calcium Phosphate Fluoride Hydroxide Chloride, Ca5(PO4)3(F,OH,Cl)

Apatite is a group name, it's members are the most common of the phosphorus-bearing minerals. Apatites are formed under a variety of conditions but most commonly occur as accessory minerals in igneous rocks.

Muscovite
Potassium Aluminum Silicate Hydroxide, KAl2(AlSi3)O10(OH)2

Muscovite is an important rock-forming member of the mica group. It is most abundant in schists and gneisses and in granite pegmatites, where it may occur in large "books."

Stuart provides the following remarks:

"This combination of minerals has only been found in Pakistan. There are only a few specimens known where both minerals are of excellent quality and aesthetically arranged. Both Aquamarine crystals and Pink Apatites are quite rare but to find them together on the same matrix is unbelievable."


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bkeller@rockhounds.com 8/5/95