Anna Harsant
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Pictures: Copper Brown Hair Color - http://haircolorideasforyou.com/copper-brown-hair-color

Pictures: Copper Brown Hair Color - http://haircolorideasforyou.com/copper-brown-hair-color

Opal is a hydrated amorphous form of silica; its water content may range from 3% to 21% by weight, but is usually between 6% to 10%. Because of its amorphous character it is classed as a mineraloid, unlike the other crystalline forms of silica which are classed as minerals.

Opal is a hydrated amorphous form of silica; its water content may range from 3% to 21% by weight, but is usually between 6% to 10%. Because of its amorphous character it is classed as a mineraloid, unlike the other crystalline forms of silica which are classed as minerals.

Tanzanite. Trichroic variety of ziosite. Appears bluish under fluorescent light and purplish under incandescent light. Found mostly in Mt. Kilimanjaro.

Tanzanite. Trichroic variety of ziosite. Appears bluish under fluorescent light and purplish under incandescent light. Found mostly in Mt. Kilimanjaro.