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Natsukidani, Oita prefecture, Kyushu Island, Japan

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Hydrothermal quartz-clay veins cutting garnet-clinopyroxene-vesuvianite skarn.




Group 1 - Elements
  		• Bismuth1.CA.05
    Bi
    Group 2 - Sulphides and Sulfosalts
  		• Joséite-B2.DC.05
    Bi
     
    4
    		Te
     
    2
    		S
    Group 4 - Oxides and Hydroxides
  		• Quartz4.DA.05
    SiO
     
    2
    Group 5 - Nitrates and Carbonates
  		• Beyerite5.BE.35
    Ca(BiO)
     
    2
    		(CO
     
    3
    		)
     
    2
    Group 9 - Silicates
  		• Eulytine9.AD.40
    Bi
     
    4
    		[SiO
     
    4
    		]
     
    3
  		• Tremolite9.DE.10
    ☐[Ca
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
  		• Vesuvianite9.BG.35
    Ca
     
    10
    		(Mg,Fe)
     
    2
    		Al
     
    4
    		Si
     
    9
    		O
     
    34
    		(OH)
     
    4
    Unclassified Minerals
  		• 'Clay'-
  		• 'Clinopyroxene Subgroup'-
  		• 'Garnet Group'-
    X
     
    3
    		Z
     
    2
    		(TO
     
    4
    		)
     
    3
    		 (X = Ca, Fe, etc·, Z = Al, Cr, etc·, T = Si, As, V)
  		• 'Scapolite'-


    11 entries listed. 6 valid minerals.

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