Specific gravity: 7.31
Hardness: 1½ to 2
Solubility: Dissolves in acids and bases.
Abundance: Earth’s crust: 2.3 parts per million by weight, 0.4 parts per million by moles. Solar system: 9 parts per billion by weight, 0.1 parts per billion by moles (ChC)
Melting point: 231.928oC
Boiling point: 2620oC
Placer deposits rarely
Native tin occurs rarely as greyish metallic grains and nuggets to 1 cm in some placers,
kimberlite pipes or seafloor spreading zones
In compounds tin is usually divalent, Sn2+ or tetravalent Sn4+ (ChC).
Associated minerals include platinum, gold, copper, sorosite and cassiterite (HOM).
At Oued Berkou, Algeria, native tin occurs in greisen (Dana).
At Oban, Australia, native tin occurs in placer sands (Dana, Webmin).
At Beaverlodge, Canada, native tin occurs in calcite as discrete grains (Webmin).
Tin-bearing minerals include:
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