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Bearsite

• Formula:
  Be₂(AsO₄)(OH) · 4H₂O

• System: Monoclinic

• Name:
  For the chemical composition

• IMA Status: Valid (Approved)

• Type Locality:
  Bota-Burum U deposit, Lake Alakol (Lake Aaköl), Almaty Province (Almaty Oblysy; Almati Oblast'), Kazakhstan

• Dana 8th: 42.6.1.2
  
  42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
  6 : A₂(XO₄)Z_q·xH₂O

• Density: 1.8 g/cm³ to 2.0 g/cm³ (measured)
  2.199 g/cm³ (calculated)

• Colour: White