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Mineral Index - C

• Chuki
  syn. of Iron

• Chuma
  syn. of Iron

• Chumbo
  syn. of Lead

• Churchillite
  syn. of Mendipite

• Churchite
  syn. of Churchite-(Y)

• Churchite-(Dy)
  Almost certainly misidentified churchite-(Y). Walenta (1995) states in his description of churchite minerals from the Black Forest: "An Seltenen Erden sind Dy, Sm, Gd und Nd vertreten, Y ist dagegen nur in sehr geringen Mengen nachweisbar. ...
  Monoclinic
  (Dy,Sm,Gd,Nd)PO₄·2H₂O

• Churchite-(Nd)
  Monoclinic
  NdPO₄·2H₂O
• Churchite-(Y)
  Monoclinic
  YPO₄·2H₂O
• Chursinite
  Monoclinic
  (Hg-Hg)_0.5Hg²⁺[AsO₄]

• Chu sa
  syn. of Cinnabar

• Chusite
  mixture of Limonite, Olivine

• Chussite
  syn. of Chusite

• Chvaleticeite
  Monoclinic
  (Mn,Mg)SO₄·6H₂O
• Chvilevaite
  Hexagonal
  Na(Cu,Fe,Zn)₂S₄

• Chyastolith
  syn. of Chiastolite

• Cianciulliite
  Monoclinic
  Mn(Mg,Mn)₂Zn₂(OH)₁₀·2-4H₂O

• Cianite
  syn. of Kyanite

• Cianochroma
  syn. of Cyanochroite

• Cianocroite
  syn. of Cyanochroite

• Cibdelophane
  syn. of Ilmenite

• Ciempozuelite
  A poorly studied material occurring as efflorescences in a mine. Perhaps a mixture with glauberite.
  ~Na₆Ca(SO₄)₄

• Ćilibar
  syn. of Amber

• Cimolia
  syn. of Cimolite

• Cimolite
  A clay from Cimolo, Greece, mentioned by Theophrastos and Pliny. The mineral is unidentifiable. Present locality name is Kimolos Island (Argentiera), Cyclade Islands (Cyclades; Kikladhes; Nomos Kikladhon), Kykládes Prefecture, Aegean Islands ...
  Al₄Si₉O₂₄·6H₂O

• Cinabre
  syn. of Cinnabar

• Cinabri
  syn. of Cinnabar

• Cinabrio
  syn. of Cinnabar

• Cinábrio
  syn. of Cinnabar

• Cinabro
  syn. of Cinnabar

• Cinnabar
  Trigonal
  HgS

• Cinnabarite (of Dana)
  syn. of Cinnabar

• Cinnaber
  syn. of Cinnabar

• Cinnamite
  syn. of Hessonite

• Cinnamon Garnet
  syn. of Hessonite

• Cinnamon Granat
  syn. of Hessonite

• Cinnamon Stone
  syn. of Hessonite

• Cinnober
  syn. of Cinnabar

• Cinoberis
  syn. of Cinnabar

• Cinobrs
  syn. of Cinnabar

• Ciplyite
  Uncertain mineral
  Ca₄SiP₄O₁₆

• Ciplyte
  syn. of Ciplyite

• Cipolin
  var. of Marble

• Ciprianiite
  Monoclinic
  Ca₄[(Th,U)(REE)]Al[]₂(Si₄B₄O₂₂)(OH,F)₂

• Circone
  syn. of Zircon

• Cire Fossile
  syn. of Ozocerite

• Cirkon
  syn. of Zircon

• Cirkonas
  syn. of Zircon

• Cirrolite
  An unconfimed species. [Dana, 1868, 579 - "Syst.Min. 5th Ed"]
  near Ca₃Al₂(PO₄)₃(OH)₃

• Citrien
  syn. of Citrine

• Citrin
  syn. of Citrine

• Citrín
  syn. of Citrine

• Citrinas
  syn. of Citrine

• Citrine
  var. of Quartz
  Trigonal

• Citrino
  syn. of Citrine

• Citrīns
  syn. of Citrine

• Citron
  syn. of Citrine

• Citron Chrysoprase
  syn. of Nickeloan Magnesite

• Clairite
  Triclinic
  (NH₄)₂Fe₃(SO₄)₄(OH)₃·3H₂O
• Claraite
  (Cu,Zn)₃[(OH)₄|CO₃] · 4H₂O
• Claringbullite
  Hexagonal
  Cu₄[(OH)₇|Cl] · nH₂O

• Clarite (of Sandberger)
  syn. of Enargite

• Clarkeite
  Trigonal
  (Na,Ca,Pb)₂U₂(O,OH)₇

• Claro Opal
  var. of Precious Opal

• Claudelite
  syn. of Claudetite

• Claudetite
  Monoclinic
  As₂O₃

• Claussenite
  syn. of Gibbsite

• Clausthalie
  syn. of Clausthalite

• Clausthalite
  Isometric
  PbSe

• Clausthalite-Galena Series
  a series between Clausthalite and Galena
  Isometric

• Clay
  A group of minerals. Many doubtful clays are probably impure Kaolinite. [Clark, 1993 - "Hey's Mineral Index"]. Other clay may be dickite or montmorillonite or smectite etc.

• Clayite (of Mellor)
  syn. of Kaolinite

• Clayite (of Taylor)
  A substance reported to contain 68.51% Pb and occurring in tetrahedrons. Probably a result of alteration.

• Clearcreekite
  Monoclinic
  (Hg-Hg)_1.5[OH|CO₃] · 2H₂O

• Clear Lake Diamonds
  var. of Quartz

• Cleavelandite
  var. of Albite