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Measurements: 53 x 46 x 28 mm Description:
A light blue aquamarine crystal (18 x 15 x 12 mm) sits to the side
of a group of schorl and feldspar crystals. The latter is partly coated with
very minute greenish / yellowish crystals of a (to us, unknown) mineral. The
aquamarine crystal has only a few very small nicks, while the schorl crystals
also have very little damage. The specimen displays well on a flat surface. Chemical
Composition: Be3Al2Si6O18 (aquamarine) Hardness
on Mohs Scale: (aquamarine) 7.5 - 8.0 Location: Specimen
Code: NERA 011 US $ 125 . .
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