Thursday, August 1, 2013

SUNSTONE - the state Gemstone of Oregon

 
 Oregon sunstones are a rare variety of the feldspar mineral group.they are found in the soil and the underlying lava flows. Oregon sunstones are uncommon in their composition, clarity, and rang...e of colors and the quantity allows sustained production of faceted gems.
Sunstone crystals as large as 3 inches across have been found. The colors range from water clear through pale yellow, soft pink, and blood red to deep blue and green. Some of the deeper colored stones have bands of varying color. These color variations and the shimmer (often called "schiller") are caused by tiny crystals of copper metal contained in varying
amounts and sizes within the stones.

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