Cassiterite Mineral Specimen from Panasqueira Mine, Portugal hematoid quartz sphere 70mm Natural raw condition Preserves the

Natural raw condition Preserves the original exterior and naturally weathered appearance

Display as a centrepiece in any fine mineral collection or museum cabinet

offering a clear view into the complex mineral makeup of this extraordinary stone

but Mango Quartz guides and supports you through this process

Cassiterite Mineral Specimen from Panasqueira Mine, Portugal hematoid quartz sphere 70mm Natural raw condition Preserves theCassiterite is a tin oxide mineral with the chemical formula SnO, the primary ore of tin. Its dominant element, Tin (Sn), has an atomic number of 50 on the periodic table. Cassiterite crystallises in the tetragonal system and often appears as lustrous prismatic or pyramidal crystals, ranging in colour from deep brown to black, sometimes with golden or reddish hues in gem quality specimens. This piece comes from the world famous Panasqueira Mine in