lustrous crystals (up to \(1
The hematite center of the rutile star is visible front and back
In addition to its aesthetic appeal
the Bursa region of Turkey
many of them with UV reactive petroleum inclusions
Siderite with Calcite from Dalnegorsk, Russia TF1830 trolleite lustrous crystals (up to \(1Siderite with Calcite from Dalnegorsk, Russia Approx. Dimensions: 4x2x2. 5 inches Approx. Weight: 168 grams Locality: Nikolaevskiy Mine, Dalnegorsk, Primorskiy Kray, 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