Siderite with Calcite from Dalnegorsk, Russia DS2570 rings or could be displayed upright

or could be displayed upright with the help of mineral putty (not included)

often with bright rainbow flashes or distinct stripes from color bars

known for its manganese-infused composition

It has a full polish on the front and has natural edges from the nodule on top and bottom

utilized in jewelry

Siderite with Calcite from Dalnegorsk, Russia DS2570 rings or could be displayed uprightSiderite with Calcite from Dalnegorsk, Russia Approx. Dimensions: 3x2x2. 5 inches Approx. Weight: 178 grams Locality: Nikolaevskiy Mine, Dalnegorsk, Russia Siderite with calcite specimens from Russia, specifically the renowned Nikolaevskiy Mine in Dalnegorsk, Primorsky Krai, are highly prized for their unique, often spherical, and complex, multi generational crystalline structures. These, mineral specimens from the Nikolaevskiy Mine in Dalnegorsk