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Greenwoodite

A valid IMA mineral species
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09627380017271951083265.jpg
Greenwoodite, etc.

Wigwam deposit, Revelstoke Mining Division, British Columbia, Canada
09627380017271951083265.jpg
Greenwoodite, etc.

Wigwam deposit, Revelstoke Mining Division, British Columbia, Canada
09627380017271951083265.jpg
Greenwoodite, etc.

Wigwam deposit, Revelstoke Mining Division, British Columbia, Canada
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About GreenwooditeHide

Formula:
(Ba,V3+O)2V3+9(Fe3+,Fe2+)2Si2O22
Colour:
Black
Lustre:
Sub-Metallic, Dull
Hardness:
5
Specific Gravity:
4.81 (Calculated)
Crystal System:
Trigonal
Name:
Named in honor of Hugh J. Greenwood, Canadian mineralogist, former Professor of Mineralogy, University of British Columbia, Vancouver, Canada.
This page provides mineralogical data about Greenwoodite.


Unique IdentifiersHide

Mindat ID:
40146
Long-form identifier:
mindat:1:1:40146:3

IMA Classification of GreenwooditeHide

Classification of GreenwooditeHide

Strunz-mindat (2026):
9.AH.55

9 : SILICATES (Germanates)
A : Nesosilicates
H : Nesosilicates with CO3, SO4, PO4, etc.

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
GwdIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of GreenwooditeHide

Lustre:
Sub-Metallic, Dull
Transparency:
Opaque
Colour:
Black
Hardness:
5 on Mohs scale
Cleavage:
Perfect
{001}
Density:
4.81 g/cm3 (Calculated)

Chemistry of GreenwooditeHide

Mindat Formula:
(Ba,V3+O)2V3+9(Fe3+,Fe2+)2Si2O22
Element Weights:
Element% weight
V36.591 %
O28.092 %
Ba21.920 %
Fe8.914 %
Si4.483 %

Calculated from ideal end-member formula.
V
O
Ba
Fe
Si
Elements listed:
Ba, Fe, O, Si, V - search for minerals with similar chemistry

Crystallography of GreenwooditeHide

Crystal System:
Trigonal
Class (H-M):
3m(32/m) - Hexagonal Scalenohedral
Space Group:
P3m1
Setting:
P3m1
Cell Parameters:
a = 5.7500(6) Å, c = 14.4590(9) Å
Ratio:
a:c = 1 : 2.515
Unit Cell V:
414.00 ų (Calculated from Unit Cell)
Morphology:
A semi-prismatic to tabular habit.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0019709GreenwooditeBartholomew P R, Mancini F, Harlow G E, Deifel N, Cahill C, Bernhardt H J (2012) Greenwoodite, a new nesosilicate from British Columbia with a Ba-VOH coupled substitution and tetrahedral Fe: description and structure The Canadian Mineralogist 50 1233-12422012Wigwam deposit of Southeastern British Columbia, Canada0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits
Stage 5: Initiation of plate tectonics<3.5-2.5
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)

Type Occurrence of GreenwooditeHide

Type Locality:
ⓘ Wigwam deposit, Revelstoke Mining Division, British Columbia, Canada
General Appearance of Type Material:
Small, disseminated semi-prismatic to tabular
grains
Place of Conservation of Type Material:
American Museum of Natural History, New York, NY, catalog no. 109839
Geological Setting of Type Material:
Metamorphic mineral formed under greenschist-facies conditions
Associated Minerals at Type Locality:
'Apatite'BatisiviteCelsianGalenaPyrite
PyrrhotiteQuartzSphaleriteZoltaiite
Reference:
Bartholomew, P. R.; Mancini, F.; Harlow, G. E.; Deifel, N.; Cahill, C.; Bernhardt, H.-J. (2012) GREENWOODITE, A NEW NESOSILICATE FROM BRITISH COLUMBIA WITH A Ba-VOH COUPLED SUBSTITUTION AND TETRAHEDRAL Fe: DESCRIPTION AND STRUCTURE. The Canadian Mineralogist, 50 (5). 1233-1242 doi:10.3749/canmin.50.5.1233

Synonyms of GreenwooditeHide

Other Language Names for GreenwooditeHide

Common AssociatesHide

Associations Based on Photo Data:
1 photo of Greenwoodite associated with ZoltaiiteBaV4+2V3+12(SiO4)2O19

Related Minerals - Strunz-mindat GroupingHide

9.AH.Fluorbritholite-(Nd)Ca2Nd3(SiO4)3FHex. 6/m : P63/m
9.AH.05Iimoriite-(Y)Y2[SiO4][CO3]Tric. 1 : P1
9.AH.10Tundrite-(Ce)Na2Ce2Ti(SiO4)(CO3)2O2Tric. 1 : P1
9.AH.10Tundrite-(Nd)Na2(Nd,Ce)2Ti(SiO4)(CO3)2O2
9.AH.15GaluskiniteCa7(SiO4)3(CO3) Mon. 2/m : P21/b
9.AH.15SpurriteCa5(SiO4)2(CO3)Mon. 2/m : P21/b
9.AH.20TernesiteCa5(SiO4)2(SO4)Orth. mmm(2/m2/m2/m) : Pnma
9.AH.20SilicocarnotiteCa5[(SiO4)(PO4)](PO4)Orth. mmm(2/m2/m2/m) : Pnma
9.AH.25Britholite-(Ce)(Ce,Ca)5(SiO4)3OHHex. 6/m : P63/m
9.AH.25Britholite-(Y)(Y,Ca)5(SiO4)3OHHex. 6/m : P63/m
9.AH.25MattheddleitePb5(SiO4)1.5(SO4)1.5(Cl,OH)Hex. 6/m : P63/m
9.AH.25Fluorbritholite-(Ce)(Ce,Ca)5(SiO4)3FHex. 6/m : P63/m
9.AH.25FluorellestaditeCa5(SiO4)1.5(SO4)1.5FHex. 6/m : P63/m
9.AH.25Fluorbritholite-(La)Ca2La3(SiO4)3FHex. 6/m : P63/m
9.AH.25Fluorbritholite-(Y)(Y,Ca)5(SiO4)3FHex. 6/m : P63/m
9.AH.25HydroxylellestaditeCa5(SiO4)1.5(SO4)1.5(OH)Hex. 6/mmm(6/m2/m2/m) : P63/mcm
9.AH.25'Calciobritholite'(Ca,Y)5(SiO4,PO4)3(OH)
9.AH.25'Britholite-(La)'Ca2(La,Ce,Ca)3(SiO4,PO4)3(OH,F)
9.AH.25Tritomite-(Ce)Ce5(SiO4,BO4)3(OH,O)
9.AH.25Tritomite-(Y)Y5(SiO4,BO4)3(O,OH,F)
9.AH.25Fluorcalciobritholite(Ca,REE)5(SiO4,PO4)3FHex. 6/m : P63/m
9.AH.25ChlorellestaditeCa5(SiO4)1.5(SO4)1.5ClHex. 6/m : P63/m
9.AH.35DargaiteBaCa12(SiO4)4(SO4)2O3Trig. 3m(32/m) : R3m
9.AH.35NabimusaiteKCa12(SiO4)4(SO4)2O2FTrig. 3m(32/m) : R3m
9.AH.40StracheriteBaCa6(SiO4)2[(PO4)(CO3)]FTrig. 3m(32/m) : R3m
9.AH.40ZadoviteBaCa6[(SiO4)(PO4)](PO4)2FTrig. 3m : R3m
9.AH.40GazeeviteBaCa6(SiO4)2(SO4)2OTrig. 3m(32/m) : R3m
9.AH.45FlamiteCa8-x(Na,K)x(SiO4)4-x(PO4)xOrth. mm2
9.AH.50ByzantieviteBa5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O22[(OH),F]43(H2O)1.5Trig. 3 : R3
9.AH.60Kihlmanite-(Ce)Ce2TiO2(SiO4)(HCO3)2(H2O)Tric. 1 : P1
9.AH.65TsangpoiteCa5(PO4)2(SiO4)Hex.
9.AH.70'Enalite'(Th,REE,Al) [(PO4),(SiO4),(OH)]Tet.

Other InformationHide

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

Internet Links for GreenwooditeHide

References for GreenwooditeHide

Localities for GreenwooditeHide

Showing 1 localities.

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.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Canada (TL)
 
  • British Columbia
    • Revelstoke Mining Division
Williams et al. (2010) +1 other reference
Quick NavTopAbout GreenwooditeUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
 
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