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Welinite

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Welinite

Långban, Filipstad, Värmland, Sweden
Welinite, etc.

Sjögruvan, Grythyttan, Hällefors, Västmanland, Sweden
Welinite

Sjögruvan, Grythyttan, Hällefors, Västmanland, Sweden
Welinite

Långban, Filipstad, Värmland, Sweden
Welinite, etc.

Sjögruvan, Grythyttan, Hällefors, Västmanland, Sweden
Welinite

Sjögruvan, Grythyttan, Hällefors, Västmanland, Sweden
Welinite

Långban, Filipstad, Värmland, Sweden
Welinite, etc.

Sjögruvan, Grythyttan, Hällefors, Västmanland, Sweden
Formula:
(Mn4+,W)(Mn2+,Mg)(SiO4)(O,OH)3
System:
Trigonal
Colour:
orange-red, deep red ...
Lustre:
Resinous
Hardness:
4
Name:
Named after Eric Welin (b. 1923), mineralogist and geochronologist, Swedish Museum of Natural History, Stockholm, Sweden
This page provides mineralogical data about Welinite.


Classification of Welinite

IMA status:
Approved
Approval Year:
1966
Strunz 8th ed.:
8/B.09-14
Nickel-Strunz 10th (pending) ed.:
9.AF.75

9 : SILICATES (Germanates)
A : Nesosilicates
F : Nesosilicates with additional anions; cations in [4], [5] and/or only [6] coordination
Dana 8th ed.:
52.4.1.2

52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
4 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Hey's CIM Ref.:
17.10.30

17 : Silicates Containing other Anions
10 : Silicates with sulphate, molybdate or tungstate

Physical Properties of Welinite

Lustre:
Resinous
Colour:
orange-red, deep red brown to reddish black
Streak:
pale reddish brown
Hardness (Mohs):
4
Cleavage:
Distinct/Good

Optical Data of Welinite

Type:
Uniaxial (+)
RI values:
nω = 1.864 nε = 1.880
Max Birefringence:
δ = 0.016
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Very High

Chemical Properties of Welinite

IMA Formula:
(Mn4+,W)(Mn2+,Mg)(SiO4)(O,OH)3
Elements listed in formula:
H, Mg, Mn, O, Si, W - search for minerals with similar chemistry
Common Impurities:
Fe,Sb,H2O

Crystallography of Welinite

Crystal System:
Trigonal
Class (H-M):
3 - Pyramidal
Space Group:
P3
Cell Parameters:
a = 8.15 Å, c = 4.78 Å
Ratio:
a:c = 1 : 0.587
Unit Cell Volume:
V 274.96 ų (Calculated from Unit Cell)
Comment:
Originally assumed to be P63.

Type Occurrence of Welinite

Type Locality:
Långban, Filipstad, Värmland, Sweden

Relationship of Welinite to other Species

Related Minerals - Nickel-Strunz Grouping):
9.AF.05SillimaniteAl2OSiO4
9.AF.10AndalusiteAl2SiO5
9.AF.10KanonaiteMn3+AlOSiO4
9.AF.15KyaniteAl2OSiO4
9.AF.20MulliteAl4+2xSi2-2xO10-x (x~0.4)
9.AF.20KrieseliteAl2GeO4(OH)2
9.AF.23BoromulliteAl9BSi2O19
9.AF.25Yoderite(MgAl3)(MgAl)Al2O2(SiO4)4(OH)2
9.AF.30MagnesiostauroliteMg(Mg,Li)3(Al,Mg)18Si8O44(OH)4
9.AF.30StauroliteFe22+Al9Si4O23(OH)
9.AF.30ZincostauroliteZn2Al9Si4O23(OH)
9.AF.35TopazAl2SiO4F2
9.AF.40NorbergiteMg3SiO4F2
9.AF.45AlleghanyiteMn52+(SiO4)2(OH)2
9.AF.45ChondroditeMg5(SiO4)2F2
9.AF.45ReinhardbraunsiteCa5(SiO4)2(OH)2
9.AF.45KumtyubeiteCa5(SiO4)2F2
9.AF.45HydroxylchondroditeMg5(SiO4)2(OH)2
9.AF.50HumiteMg7(SiO4)3(F,OH)2
9.AF.50ManganhumiteMn72+(SiO4)3(OH)2
9.AF.50Unnamed (Ca-analogue of Humite)Ca7(SiO4)4F2
9.AF.55ClinohumiteMg9(SiO4)4F2
9.AF.55SonoliteMn92+(SiO4)4(OH)2
9.AF.55HydroxylclinohumiteMg9(SiO4)4(OH)2
9.AF.60LeucophoeniciteMn72+(SiO4)3(OH)2
9.AF.65RibbeiteMn52+(SiO4)2(OH)2
9.AF.70JerrygibbsiteMn92+(SiO4)4(OH)2
9.AF.75FranciscaniteMn62+V5+(SiO4)2(O,OH)6
9.AF.75ÖrebroiteMn62+(Fe3+,Sb5+)2(SiO4)2(O,OH)6
9.AF.80EllenbergeriteMg6(Mg,Ti,Zr,◻)2(Al,Mg)6Si8O28(OH)10
9.AF.85ChloritoidFe2+Al2OSiO4(OH)2
9.AF.85MagnesiochloritoidMgAl2O(SiO4)(OH)2
9.AF.85OttréliteMn2+Al2O(SiO4)(OH)2
9.AF.90PoldervaartiteCa(Ca,Mn)(SiO3OH)(OH)
9.AF.90OlmiiteCaMnSiO3(OH)2
Related Minerals - Hey's Index Grouping:
17.10.1NoseanNa8(Si6Al6)O24(SO4) · H2O
17.10.2PitiglianoiteK2Na6(Si6Al6)O24(SO4) · 2H2O
17.10.3VishneviteNa8(Al6Si6)O24(SO4) · 2H2O
17.10.4HaüyneNa3Ca(Si3Al3)O12(SO4)
17.10.5LiottiteNa16Ca8Si18Al18O72(SO4)5Cl4
17.10.6Latiumite(Ca,K)4(Si,Al)5O11(SO4,CO3)
17.10.7TuscaniteKCa6(Si,Al)10O22(SO4,CO3)2(OH) · H2O
17.10.8MicrosommiteNa4K2Ca2(SO4)(Si6Al6O24)Cl2
17.10.9DelhayeliteK7Na3Ca5Al2Si14O38F4Cl2
17.10.10HydrodelhayeliteKCa2(Si7Al)O17(OH)2 · 6H2O
17.10.11Davyne(Na,K)6Ca2(Si6Al6)O24Cl3(SO4)0.5
17.10.12AfghaniteNa22Ca10(Si24Al24)O96(SO4)6Cl6
17.10.13Franzinite(Na,K)30Ca10(Si30Al30)O120(SO4)10 · 2H2O
17.10.14GiuseppettiteNa42K16Ca6Si48Al48O192(SO4)10Cl2 · 5H2O
17.10.15Sacrofanite(Na,Ca)9(Si,Al)12O24(OH,SO4,CO3,Cl)4 · nH2O
17.10.16ChessexiteNa4Ca2Mg3Al8(SiO4)2(SO4)10(OH)10 · 40H2O
17.10.17InneliteBa4Ti2Na(NaCa)Ti(Si2O7)2[(SO4)(PO4)]O2[O(OH)]
17.10.18ThaumasiteCa3Si(OH)6(SO4)(CO3) · 12H2O
17.10.19Ellestadite
17.10.20Ellestadite-(Cl)Ca10(SiO4)3(SO4)3Cl2
17.10.21HydroxylellestaditeCa5(SiO4)1.5(SO4)1.5(OH)
17.10.22FluorellestaditeCa5(SiO4)1.5(SO4)1.5F
17.10.23MattheddleitePb10(SiO4)3(SO4)3Cl2
17.10.24QueititeZn2Pb4(SiO4)(Si2O7)(SO4)
17.10.25RoeblingiteCa6Mn2+Pb2(Si3O9)2(SO4)2(OH)2 · 4H2O
17.10.26YoshimuraiteBa4Mn42+Ti2(Si2O7)2(PO4)2O2(OH)2
17.10.27KegelitePb4Al2Si4O10(SO4)(CO3)2(OH)4
17.10.28WenkiteBa4Ca6(Si,Al)20O41(OH)2(SO4)3 · H2O
17.10.29MacquartiteCu2Pb7(CrO4)4(SiO4)2(OH)2

Other Names for Welinite

Synonyms:

IMA1966-002

Name in Other Languages:
German:Welinit
Spanish:Welinita

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Welinite

Reference List:
Arkiv för Mineralogi och Geologi (1967): 4: 407-411.

American Mineralogist (1968): 53: 1064.

American Mineralogist (1986): 71: 1522-1526.

Internet Links for Welinite

mindat.org URL:
https://www.mindat.org/min-4264.html
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    • Localities for Welinite

    This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    France
     
    • Occitanie
      • Hautes-Pyrénées
    		 Le Règne Minéral 47: 5-21
          • Nabias
          • Vielle-Aure
    		Ragu, A. (1994): Helvite from the French Pyrénées as evidence for granite-related hydrothermal activity. Canadian Mineralogist 32, 111-120.; DE ASCENCAO GUEDES R., TIXADOR Y., CASTERET A. & GOUJOU JC. (2002) La mine de Coustou, Vielle-Aure, Hautes-Pyrénées. Le Règne Minéral, 47, 23-31. (in french)
      • Lozère
        • La Canourgue
          • Auxillac
    		BRGM (1981) - Fiche BSS 08625X4003/GT
    Japan
     
    • Kyushu Region
      • Kumamoto Prefecture
        • Itsuki
    		Mem. Fac. Sci., Ehime University, 6 (2000), 1-7.
    Sweden (TL)
     
    • Värmland
      • Filipstad
    		Arkiv Min.Geol.(1967) 4, 407-411; Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
    • Västmanland
      • Hällefors
        • Grythyttan
    		Holtstam, D. (2001): W and V mineralization in Långban-type Fe-Mn deposits: Epigenetic or Syngenetic? Geologiske Föreningen i Stockholm Förhandlingar 123: 29-33; Moore, P. B. (1967). Welinite, a new mineral from LAngban. Arkiv fOr Mineralogi och Geologi, 4, 407-411.
    Mineral and/or Locality  
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