Fine-Grade Sunstone Crystals (AA Grade)
These fine-grade natural sunstone crystals exhibit fascinating aventurescence.
The spangly or glittery effect that makes sunstone so distinctive comes from tiny, reflective inclusions of metallic minerals such as hematite, goethite or copper.
Known as aventurescence, this optical phenomenon is most visible as light hits the stone at certain angles.
Oregon, USA, produces the finest gem-grade sunstone. These gemstones, which are typically transparent to translucent, occur in various colours and exhibit exceptional aventurescence. The inclusions in Oregon sunstone tend to be copper.
Lower-grade sunstone, which is used for tumbling and lapidary work, generally comes from India, Canada and Norway. These stones come from India.
Tumbled sunstone is graded based on aventurescence and colour.
These crystals are medium-sized tumbled stones, but size can vary from piece to piece.
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Sugilite
