Rough Blue Kyanite Crystal / 2-5" AVG - 1 KILO LOT Menu Skulls Apophyllite is a silica-based mineral

Apophyllite is a silica-based mineral typically found in vesicles or crevices in volcanic rock

Its name derives from the Greek word apophyllizo

Pieces measure approximately 30 millimeters (AVERAGE SIZE)

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5 Inches) Sizes Vary

Rough Blue Kyanite Crystal / 2-5" AVG - 1 KILO LOT Menu Skulls Apophyllite is a silica-based mineralQuantity: 1 kilogram Average size range: 2 to 5 inches Kyanite is an aluminum rich crystal that forms on metamorphic rock under extremely high pressure. Its distinctive blue color comes from iron and titanium, and some pieces with trace amounts of manganese can turn orange instead.