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Bottinoite

• 
  Hendre Felen Mine, Ysbyty Ystwyth, Ceredigion (Dyfed; Cardiganshire), Wales, UK
  © Steve Rust

• Formula:
  Ni²⁺[Sb(OH)₆]₂ · 6H₂O

• System: Trigonal

• Name:
  For the type locality.

• IMA Status: Valid (Approved)
  Approved 1991

• Type Locality:
  Bottino Mine, Stazzema, Apuan Alps, Lucca Province, Tuscany, Italy

• Dana 8th: 6.3.9.1
  
  6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
  3 : X(OH)₃

• Hardness (Mohs): 3½

• Density: 2.83 g/cm³ (measured)
  2.81 g/cm³ (calculated)

• Lustre: Vitreous

• Diapheny: Transparent

• Diapheny: brittle

• Colour: Pale blue to pale blue-green

• Streak: Very light blue