Mineralogy Database

Turquoise Mineral Data

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General Turquoise Information

Help on Chemical  Formula: Chemical Formula: CuAl6(PO4)4(OH)8•4(H2O)
Help on Composition: Composition: Molecular Weight = 813.44 gm
   Aluminum    19.90 %  Al   37.60 % Al2O3
   Copper       7.81 %  Cu    9.78 % CuO
   Phosphorus  15.23 %  P    34.90 % P2O5
   Hydrogen     1.98 %  H    17.72 % H2O
   Oxygen      55.07 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CuAl6(PO4)4(OH)8•4(H2O)
Help on Environment: Environment: Secondary mineral found in copper deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) Prehistoric
Help on Locality: Locality: Nishapur Deposit, Iran Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after Turkey (from where it was brought to Europe).
Help on Name Pronunciation: Name Pronunciation: Turquoise + Pronunciation Say TURQUOISE
Help on Synonym: Synonym: Callaite
  ICSD 21062
  PDF 6-214