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and cubic cleavage
The specimen has several large tabular crystal plates with glossy faces
Approximate Weight of 1 Piece: 21g
replacing or filling the internal spaces while preserving the bone texture
chemical conditions allow malachite (Cu₂CO₃(OH)₂) and chrysocolla (hydrated copper silicate) to form side by side
Amethyst - Butterfly Geode on Stand - Statement Specimen barite with quartz and cubic cleavageMined from: Ametista do Sul, Rio Grande do Sul, Brazil Description: This one of a kind amethyst butterfly geode mounted on a stand from Brazil features two matched amethyst geode halves set in a butterfly shape on a black metal stand. The interior shows pale lavender to medium purple crystal growth, with deeper purple toward the inner pockets and lighter quartz around the outer edges. Each wing has a natural grey green outer rind and a solid, natural
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