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Carpholite

• 
  Valgraveglia Mine (Gambatesa Mine), Reppia, Graveglia Valley, Ne, Genova Province, Liguria, Italy
  © G. Armellino

• Formula:
  Mn²⁺Al₂(Si₂O₆)(OH)₄

• System: Orthorhombic

• IMA Status: Valid (Grandfathered)

• Type Locality:
  Horní Slavkov (Schlaggenwald), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

• Dana 8th: 65.1.5.1
  
  65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
  1 : Single-Width Unbranched Chains, W=1 with chains P=2

• Hardness (Mohs): 5 - 5½

• Lustre: Silky

• Colour: Yellow