Siderite From Nikolaevskiy Mine, Dalnegorsk - Home Decor, Collectors Piece, Gift Geode although it can be polished

although it can be polished very smooth and make beautiful milky translucent jewellery

Measurement around the whole sphere 26cm

It can be opaque

When you own a piece of this crystal

Amazing Rutile With Hematite And Quartz Specimen From Novo Horizonte

Siderite From Nikolaevskiy Mine, Dalnegorsk - Home Decor, Collectors Piece, Gift Geode although it can be polishedSiderite From Nikolaevskiy Mine, Dalnegorsk Home Decor, Collectors Piece, Gift Weight 45g Size 3. 5cm by 3. 5cm Thickness 3. 5cm Siderite is a mineral composed of iron(II) carbonate. Siderite is both an iron ore and gangue mineral. Its principal economic value lies in its high iron content and the absence of process contaminants such as sulphur or phosphorous. It is part of a large group of isomorphous minerals, the calcite group carbonates, which