3.2" Aquamarine Crystal in Albite Crystal Matrix - Pakistan

This is a 3.2" wide albite crystal matrix that contains an aquamarine crystal from Baltistan, Pakistan. The aquamarine has sky-blue coloration towards its termination. A unique characteristic of aquamarine from this location is that it will often fade to a faint magenta color towards its center (beryl var. morganite).

The longest measurement of this aquamarine crystal is .58" wide.

Aquamarine is a blue-green variety of beryl. Oddly enough, it owes its color to iron(II) and iron(III) cations within the crystal lattice, of which iron(II) is responsible for the blue color, while iron(III) is responsible for the yellow color. The color vibrance and hue are dependent on the concentration of these cations, or lack of one or the other. The presence of both cations in the right position within the crystal lattice, can result in a deep blue colored crystal that is known as "maxixe".

Albite is a plagioclase feldspar mineral with the chemical composition Na(AlSi3O8) when in its pure form. It is a major component of granite and granitic pegmatites, and is often found to form in association with quartz, orthoclase, muscovite, hornblende and biotite. In most cases the crystals will be white to colorless, although it has been known to display red, green and blue hues depending on impurities present during formation. Albite earned its name from the Latin word "albus", meaning white (most commonly found color).
Beryl var. Aquamarine
Baha, Baltistan, Braldu Valley, Pakistan.
3.2 x 2.4"