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Aegirine

• 
  Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
  © 2003 John H. Betts

• Formula:
  NaFe³⁺Si₂O₆

• System: Monoclinic

• Name:
  Named after Aegir, a Scandinavian god of the sea.

• IMA Status: Valid (Approved)

• Type Localities:
  Rundemyr, Øvre Eiker, Buskerud, Norway

  ---

  Låven (Skådön; Lamö; Lamanskjaer), Langesundsfjorden, Larvik, Vestfold, Norway

• Dana 8th: 65.1.3c.2
  
  65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
  1 : Single-Width Unbranched Chains, W=1 with chains P=2

• Strunz 9th:
  9.DA.25
  
  9 : SILICATES (Germanates)
  D : Inosilicates
  A : Inosilicates with 2-periodic single chains, Si2O6; pyroxene family

• Hardness (Mohs): 6

• Density: 3.5 g/cm³ to 3.6 g/cm³ (measured)
  3.576 g/cm³ (calculated)

• Lustre: Vitreous

• Diapheny: Transparent,Opaque

• Diapheny: brittle

• Colour: Dark green to greenish black, reddish brown, black

• Streak: Pale yellowish grey