description Sunstone Overview
Sunstone is a variety of plagioclase feldspar known for aventurescence, a glittering optical effect produced when light reflects from tiny inclusions inside the mineral. The inclusions can include copper or hematite and may create reddish, orange, or golden flashes when the stone is viewed from particular angles. Sunstone is used as a gemstone and is notably associated with deposits in Oregon.
help Sunstone FAQ
What makes sunstone sparkle?
Sunstone shows aventurescence, a glittering effect caused when light reflects from tiny inclusions inside the feldspar. Copper or hematite inclusions can create reddish, orange, or golden flashes.
Is sunstone a type of feldspar?
Yes. Sunstone is a variety of plagioclase feldspar, a mineral group that also includes minerals such as labradorite and albite.
What colors can sunstone have?
Sunstone can show red, orange, and golden flashes against a clearer or body-colored background. The exact appearance depends on the size, amount, and arrangement of its inclusions.
Is the glitter in sunstone caused by glitter added to the stone?
No. The effect is natural aventurescence produced by reflective mineral inclusions within the feldspar. Cutting and lighting determine how strongly the flashes are seen.
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