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Mineral Index - Y

• Yafsoanite
  Isometric
  Ca₃Zn₃[TeO₆]₂
• Yagiite
  Hexagonal
  (Na,K)₃Mg₄(Al,Mg)₆(Si,Al)₂₄O₆₀

• Yagite
  syn. of Yagiite

• Yakhontovite
  Monoclinic
  (Ca,Na)_0.5(Cu,Fe,Mg)₂Si₄O₁₀(OH)₂·3H₂O
• Yakovenchukite-(Y)
  Orthorhombic
  K₃NaCaY₂[Si₁₂O₃₀] · 4H₂O

• Yakut
  syn. of Ruby

• Yakutite
  var. of Diamond

• Yalck
  syn. of Talc

• Yamaguchilite
  var. of Zircon

• Yamaguchilith
  syn. of Yamaguchilite

• Yamatoite
  Discredited member of Garnet Group. Resubmitted as IMA 2009-026. Originally reported from Yamato mine, Amami-Oshima Island, Kagoshima Prefecture, Nansei Archipelago, Japan.
  Isometric
  (Mn²⁺,Ca)₃(V³⁺,Al)₂[SiO₄]₃

• Yamazuchilith
  syn. of Yamaguchilite

• Yanit
  syn. of Celadonite, Nontronite

• Yanolite
  syn. of Axinite Group

• Yanolithe
  syn. of Axinite Group

• Yanomamite
  Orthorhombic
  InAsO₄·2H₂O

• Yanshainshynite
  var. of Thorite
  Fe(OH)-rich variety

• Yanshynshite
  syn. of Yanshainshynite

• Yanshyshite
  syn. of Yanshainshynite

• Yanthosiderite
  syn. of Goethite

• Yanzhongite
  syn. of Kotulskite

• Yaqui Onyx
  syn. of Limestone Onyx

• Yarlongite
  Hexagonal
  Cr₄Fe₄NiC₄
• Yaroslavite
  Orthorhombic
  Ca₃Al₂F₁₀(OH)₂·H₂O

• Yarroshite
  syn. of Mg-bearing Melanterite

• Yarrowite
  Trigonal
  Cu₉S₈

• Yarvi
  syn. of Copper

• Yava Onyx
  syn. of Limestone Onyx

• Yavapaiite
  Monoclinic
  KFe(SO₄)₂

• Yavapaiite Group
  group name

• Yazganite
  Monoclinic
  NaFe³⁺₂(Mg,Mn²⁺)[AsO₄]₃ · H₂O
• Yeatmanite
  Triclinic
  Mn²⁺₇Zn₈Sb⁵⁺₂[O₃|SiO₄]₄
• Yecoraite
  Fe³⁺₃(BiO)₅(Te⁴⁺O₃)(Te⁶⁺O₆)₂ · 9H₂O
• Yedlinite
  Trigonal
  Pb₆(Cl,OH)₆Cr ³⁺(OH,O)₈
• Ye'elimite
  Isometric
  Ca₄Al₆[O₁₂|SO₄]
• Yegorovite
  Monoclinic
  Na₄[Si₄O₈(OH)₄]·7H₂O

• Yellow Arsenic
  syn. of Orpiment

• Yellow Copper
  syn. of Chalcopyrite

• Yellow Copperas
  syn. of Copiapite

• Yellow Copper Ore
  syn. of Chalcopyrite

• Yellow earthy cobalt
  An arsenate of Co and Fe. May be a mixture of Erythrite and Pitticite.

• Yellow Jade
  syn. of Serpentine Group

• Yellow Lead Ore
  syn. of Wulfenite

• Yellow Leadspar
  syn. of Wulfenite

• Yellow Ochre
  syn. of Limonite

• Yellow Pyrite
  syn. of Chalcopyrite

• Yellow Ratsbane
  syn. of Orpiment

• Yellow Spar
  syn. of Baryte

• Yellow Tellurium
  syn. of Sylvanite

• Yenerite
  syn. of Boulangerite

• Yenite
  syn. of Ilvaite

• Yeremeyevite
  syn. of Jeremejevite

• Yəşəm
  syn. of Jasper

• Yeşim
  syn. of Jade

• Yeso
  syn. of Gypsum

• Yftisite
  syn. of Yftisite-(Y)

• Yftisite-(Y)
  Originally reported from Verkhnee Espe Massif, Tarbagatai Range, Semipalatinsk Oblysy (Semipalatinsk [Semipalatinskaya] Oblast'), Kazakhstan and El'ozero REE occurrence, Western Keivy Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, ...
  (Y,Dy,Er)₄(Ti,Sn)O(SiO₄)₂(F,OH)₆

• Yiarn
  syn. of Iron

• Yimengite
  Hexagonal
  K(Cr,Ti,Fe,Mg)₁₂O₁₉
• Yingjiangite
  Orthorhombic
  K₂Ca(UO₂)₇(PO₄)₄(OH)₆ · 6H₂O
• Yixunite
  Isometric
  Pt₃In
• Yoderite
  Monoclinic
  Mg(Al,Fe³⁺)₃[O|OH|(SiO₄)₂]
• Yofortierite
  Monoclinic
  Mn₅Si₈O₂₀(OH)₂·8-9H₂O

• Yokosukaite
  syn. of Nsutite

• Yoshimuraite
  Triclinic
  Ba₂Mn₂TiOSi₂O₇(PO₄)(OH)
• Yoshiokaite
  Trigonal
  (Ca,Na)[Al(Al,Si)O₄]

• Youngite
  Of doubtful homogeneity, containing S, Pb, Zn, Fe, and Mn.

• Yowah Nut
  var. of Boulder Opal

• Ypoléime
  syn. of Pseudomalachite

• Yster
  syn. of Iron

• Ytterbite
  syn. of Gadolinite-(Y)

• Yttergranat
  syn. of Andradite

• Ytterspath
  syn. of Xenotime-(Y)

• Yttersten
  syn. of Gadolinite-(Y)

• Yttria fluatée
  syn. of Yttrocerite