Pyrite and Calcite after Fluorite
Approx. Dimensions: 2.5 x 2 x 1 inches
Approx. Weight: 55 grams
Locality: Nikolaevskiy Mine, Dalnegorsk, Primorskiy Kray, Russia
Includes labeled acrylic base and cube as shown in photos.
What a unique and wild specimen! Cubic fluorite dissolved away and was replaced by calcite and iridescent pyrite. The cubic structure of the fluorite was retained, but the mass of fluorite beneath was dissolved away so leave only a shell of cubes. Calcite replaced the shape of the fluorite and was joined with some colorful pyrite inside and outside of the dissolved cubes. The underside features even more pyrite, and blades of fluorescent calcite.
This small specimen holds a lot of beauty and mystery.
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Updated 5/14/2026