two brown rocks sitting on top of a white table
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2 Sunstone Tumblestones 'A' Grade (small)

2 Sunstone Tumblestones 'A' Grade (small) Sunstone is a plagioclase feldspar which when viewed from certain directions exhibits a spangled appearance. The optical effect appears to be due to reflections from inclusions of red copper, in the form of minute scales, which are hexagonal, rhombic, or irregular in shape, and are disposed parallel to the principal cleavage-plane. These inclusions give the stone an appearance something like that of aventurine, hence sunstone is known also as…
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