Dioptase in Quartz | green crystal cluster, rare mineral specimen from NamibiaThis remarkable Namibian specimen features dioptase completely encapsulated within clear quartz. The vivid emerald green dioptase crystals are fully enclosed by transparent quartz, giving the impression of suspended colour captured in glass. This type of inclusion is highly unusual for dioptase, as the mineral typically forms openly on matrix rather than being overgrown by quartz. The clarity of the quartz allows the internal dioptase to appear