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Prismatine

A valid IMA mineral species - grandfathered
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About PrismatineHide

Formula:
(◻,Fe,Mg)(Mg,Al,Fe)5Al4Si2(Si,Al)2(B,Si,Al)(O,OH,F)22
Colour:
Gray-green, gold brown, purplish gray, gray
Lustre:
Vitreous
Hardness:
6½ - 7
Specific Gravity:
3.341 - 3.345
Crystal System:
Orthorhombic
Name:
For the prismatic form of the crystals.
Kornerupine-Prismatine Series.

Prismatine was reintroduced as a valid species name by Grew et al. (1996) when the boron content was able to be differentiated from the boron content in kornerupine.


Unique IdentifiersHide

Mindat ID:
7252
Long-form identifier:
mindat:1:1:7252:2
GUID
(UUID V4):
46655a22-7b00-44d7-95d1-900d723bd3bd

IMA Classification of PrismatineHide

Approved, 'Grandfathered' (first described prior to 1959)
IMA status notes:
Redefined by the IMA
IMA Formula:
(Mg,Al,Fe)6Al4(Si,Al)4(B,Si,Al)(O,OH,F)22
First published:
1886
Approval history:
Redefined 1995 s.p.: Grew et al. (1996).

Classification of PrismatineHide

9.BJ.50

9 : SILICATES (Germanates)
B : Sorosilicates
J : Sorosilicates with Si3O10, Si4O11, etc. anions; cations in octahedral [6] and greater coordination

Mineral SymbolsHide

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

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference
PrmIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
PrmWhitney & Evans (2010)Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371
PrmThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of PrismatineHide

Vitreous
Transparency:
Translucent, Opaque
Colour:
Gray-green, gold brown, purplish gray, gray
Hardness:
6½ - 7 on Mohs scale
Cleavage:
Perfect
{110}
Density:
3.341 - 3.345 g/cm3 (Measured)    

Optical Data of PrismatineHide

Type:
Biaxial (-)
RI values:
nα = 1.669 - 1.671 nβ = 1.681 - 1.830 nγ = 1.682 - 1.684
2V:
Measured: 28° to 38°
Max Birefringence:
δ = 0.013
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v strong
Pleochroism:
Visible
Comments:
colourless to greenish, reddish, yellow, and yellow-brown
Comments:
sections of greater than standard thickness

Chemistry of PrismatineHide

Mindat Formula:
(◻,Fe,Mg)(Mg,Al,Fe)5Al4Si2(Si,Al)2(B,Si,Al)(O,OH,F)22

Crystallography of PrismatineHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Cmcm
Setting:
Cmcm
Cell Parameters:
a = 15.949(2) Å, b = 13.669(2) Å, c = 6.692(1) Å
Ratio:
a:b:c = 1.167 : 1 : 0.49
Unit Cell V:
1,458.90 ų (Calculated from Unit Cell)
Comment:
Prismatine 5 105M Bahnhof

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 5: Initiation of plate tectonics<3.5-2.5
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)

Type Occurrence of PrismatineHide

General Appearance of Type Material:
Unterminated prismatic crystals up to about 5-6 cm in length, distributed randomly or radially grouped.
Place of Conservation of Type Material:
'Mineralogische Schausammlung', Technische Universitat Berlin.
Geological Setting of Type Material:
Granulite-facies with oligoclase, sillimanite, garnet, and/or tourmaline.
Associated Minerals at Type Locality:
Reference:
Sauer, A. (1886) Über eine eigentümliche Granulitart als Muttergestein zweier neuer Mineralspecies). Zeitschrift der Deutschen Geologischen Gesellschaft 38, 704-705.

Other Language Names for PrismatineHide

German:Prismatin

Relationship of Prismatine to other SpeciesHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
10 photos of Prismatine associated with EnstatiteMg2Si2O6
8 photos of Prismatine associated with SillimaniteAl2(SiO4)O
8 photos of Prismatine associated with PhlogopiteKMg3(AlSi3O10)(OH)2
6 photos of Prismatine associated with TalcMg3Si4O10(OH)2
5 photos of Prismatine associated with QuartzSiO2
5 photos of Prismatine associated with BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
5 photos of Prismatine associated with AlmandineFe2+3Al2(SiO4)3
5 photos of Prismatine associated with PyriteFeS2
1 photo of Prismatine associated with RubyAl2O3

Related Minerals - Strunz-mindat GroupingHide

9.BJ.ArsenmedaiteMn2+6 As5+Si5O18(OH)Mon. 2/m
9.BJ.05OrientiteCa8Mn3+10(SiO4)3(Si3O10)3(OH)10 · 4H2O Orth. mmm (2/m 2/m 2/m)
9.BJ.10RosenhahniteHCa3[Si3O9(OH)]Tric. 1 : P1
9.BJ.15TrabzoniteCa4(Si3O9)(OH)2Orth. mm2 : Ama2
9.BJ.20Thalénite-(Y)Y3Si3O10FMon.
9.BJ.25TiragalloiteMn2+4As5+Si3O12(OH)Mon. 2/m
9.BJ.30MedaiteMn2+6V5+Si5O18(OH)Mon. 2/m
9.BJ.35RuiziteCa2Mn3+2[Si4O11(OH)2](OH)2 · 2H2OMon. 2
9.BJ.35Taniajacoite SrCaMn3+2Si4O11(OH)4 · 2H2OTric. 1
9.BJ.35StrontioruiziteSr2Mn3+2Si4O11(OH)4 · 2H2OMon. 2 : B2
9.BJ.40Ardennite-(As)Mn2+4Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6Orth. mmm (2/m 2/m 2/m)
9.BJ.40Ardennite-(V)Mn2+4Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6Orth. mmm (2/m 2/m 2/m) : Pmmn
9.BJ.40KannaniteCa4Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6Orth. mmm (2/m 2/m 2/m) : Pmmn
9.BJ.40AlpeiteCa4Mn3+2Al2(Mn3+Mg)(SiO4)2(Si3O10)(V5+O4)(OH)6Orth. mmm (2/m 2/m 2/m) : Pmmn
9.BJ.45KilchoaniteCa6(SiO4)(Si3O10)Orth. mmm (2/m 2/m 2/m)
9.BJ.50KornerupineMg3Al6(Si,Al,B)5O21(OH)Orth. mmm (2/m 2/m 2/m) : Cmcm
9.BJ.55ZunyiteAl13Si5O20(OH,F)18ClIso. 4 3m : F4 3m
9.BJ.60HubeiteCa2Mn2+Fe3+Si4O12(OH) · 2H2OTric. 1 : P1
9.BJ.65Cassagnaite(Ca,Mn2+)4(Fe3+,Mn3+,Al)4(V3+,Mg,Al)2(Si3O10)(SiO4)2(OH,O)8Orth. mmm (2/m 2/m 2/m) : Cmcm
9.BJ.70PavlovskyiteCa8(SiO4)2(Si3O10)Orth. mmm (2/m 2/m 2/m) : Pbcn

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 PrismatineHide

References for PrismatineHide

Reference List:

Localities for PrismatineHide

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.

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.
Antarctica
 
  • Eastern Antarctica
    • Princess Elizabeth Land
      • Ingrid Christensen Coast
        • Prydz Bay
Can Min 41 (2) +2 other references
            • Stornes Peninsula
Grew et al. (2006)
Canada
 
  • Québec
    • Outaouais
      • La Vallée-de-la-Gatineau RCM
        • Lac-Sainte-Marie (Lac Ste Marie)
personal comm. Dr. E. Grew - L. Horvath +1 other reference
Germany (TL)
 
  • Saxony
    • Mittelsachsen
      • Waldheim
Sauer (1886) +3 other references
Slovakia
 
  • Košice Region
    • Rožňava District
      • Dobšiná
Pauliš P.
Sweden
 
  • Gävleborg County
    • Nordanstig
      • Hassela
prismatine from Stakholmen +2 other references
Tajikistan
 
  • Gorno-Badakhshan
    • Pyandzh River Valley
      • Kukh-i-Lal (Kukhilal; Kuhi-lal)
Grew et al. (1998)
USA
 
  • New Jersey
    • Morris County
      • Jefferson Township
        • Tierneys Corner
Canadian Mineralogist: 33 (6) +2 other references
  • New York
    • Lewis County
      • Lyonsdale
Darling +1 other reference
Zimbabwe
 
  • Mashonaland West
    • Karoi District
Grew et al. (1997)
 
矿物 and/or 产地  
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