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Wakabayashilite

A valid IMA mineral species
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[(As,Sb)6S9][As4S5]
Colour:
Lemon-yellow to orange-yellow
Lustre:
Resinous
Hardness:
1½
Specific Gravity:
3.98
Crystal System:
Orthorhombic
Name:
Named after Yaichiro Wakabayashi (30 August 1874, Kanazawa, Ishikawa Prefecture, Japan - 1943, Tokyo, Japan), mineralogist, Mitsubishi Mining Company (Japan). The mineral was discovered in his collection.


Type Locality:
ⓘNishinomaki Mine, Kamiina District, Nagano Prefecture, Japan
This page provides mineralogical data about Wakabayashilite.


Unique Identifiers
IMA Formula:
(As,Sb)6As4S14
Approval year:
1969
First published:
1970

Classification of Wakabayashilite

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
A : With As, (Sb), S
Dana 8th ed.:
2.11.4.1

2 : SULFIDES
11 : AmBnXp, with (m+n):p = 2:3
Hey's CIM Ref.:
3.7.12

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
7 : Sulphides etc. of V, As, Sb and Bi

Mineral Symbols
Transparency:
Translucent
Comment:
Silky as fibers, resinous as single crystals
Colour:
Lemon-yellow to orange-yellow
Streak:
Orange-yellow
Hardness:
1½ onMohs scale
Tenacity:
Flexible
Cleavage:
Perfect
Density:
3.98 g/cm3 (Measured)    4.06 g/cm3 (Calculated)

Optical Data of Wakabayashilite

Crystallography of Wakabayashilite
General Appearance of Type Material:
Felt-like aggregates of fibers.
Place of Conservation of Type Material:
National Science Museum, Tokyo, Japan, MA5635.
National Museum of Natural History, Washington, D.C., USA, C252, 98012, 94600.
Associated Minerals at Type Locality:
OrpimentPyriteQuartzRealgarStibnite

Synonyms of Wakabayashilite

Other Language Names for Wakabayashilite

Common AssociatesMon. 2/m :B2/b2.FA.AnorpimentAs2S3Tric.1 :P12.FA.ParadimorphiteAs4S3Orth.mmm(2/m2/m2/m) :Pnma2.FA.05DuranusiteAs4SOrth.mmm(2/m2/m2/m) :Pmna2.FA.10DimorphiteAs4S3Orth.mmm(2/m2/m2/m) :Pnma2.FA.15bPararealgarAs4S4Mon. 2/m :P21/b2.FA.15aRealgarAs4S4Mon. 2/m2.FA.15dUM1970-18-S:AsAs4S4Mon. 2/m :B2/b2.FA.20AlacrániteAs8S9Mon. 2/m :P2/b2.FA.25UzoniteAs4S5Mon. 2/m :P21/m2.FA.30LaphamiteAs2Se3Mon. 2/m2.FA.30OrpimentAs2S3Mon. 2/m2.FA.35GetchelliteAsSbS3Mon. 2/m :P21/b2.FA.40KalgoorlieiteAs2Te3Mon. 2/m :B2/m

Other Information
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    • References for WakabayashiliteⓘLa Coipa mineOviedo et al. (1991)
    China
     
    Baogui Zhang (1985)Xianxiao (2010)Xianxiao (2010)Xianxiao (2010)
    France
     
    Johan et al. (2000)+1 other reference
    Georgia
     
    Bonazzi (2005)
    Japan (TL)
     
    Introd.Japan.Min. (1970)+2 other references
    Kyrgyzstan
     
    Kolesar et al. (1993)+2 other referencesKolesar et al. (1993)
    Malaysia
     
    Luetcke (n.d.)
    Romania
     
    A. Januszewska PXRD data / Januszewska et al. (in preparation)
    Russia
     
    Anthony et al. (1990)Mikhail Tsyganko+3 other references
    USA
     
    Castor et al. (2004)Castor et al. (2004)Castor et al. (2004)Gibbs (1985)
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