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Carboborite

• Formula:
  Ca₂Mg[B(OH)₄]₂(CO₃)₂ · 4H₂O

• System: Monoclinic

• Name:
  Named in allusion to the composition, containing the essential anionic chemical components, CARBOnate and BORate.

• IMA Status: Valid (Approved)

• Type Locality:
  Haixi Autonomous Prefecture, Qinghai (Chinghai) Province, China

• Dana 8th: 27.1.1.1
  
  27 : COMPOUND BORATES
  1 : Miscellaneous

• Hardness (Mohs): 2