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Fluorcanasite

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Formula:
K3Na3Ca5Si12O30F4 · H2O
Colour:
Purple
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
2.68
Crystal System:
Monoclinic
Name:
For canasite and its fluorine content.
Canasite group


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Classification of FluorcanasiteHide

Approved
Approval Year:
2007
9.DG.80

9 : SILICATES (Germanates)
D : Inosilicates
G : Inosilicates with 3-periodic single and multiple chains

Physical Properties of FluorcanasiteHide

Vitreous
Transparency:
Transparent
Colour:
Purple
Streak:
White
Hardness:
Tenacity:
Brittle
Cleavage:
Perfect
eminent on the pseudoprism formed by planes {100} and {201}; perfect cleavage are parallel to {001}.
Parting:
parting is parallel to {001}.
Fracture:
Hackly, Step-Like
Comment:
Fracture hackly along axis b and stepped along directions a and c;
Density:
2.68(2) g/cm3 (Measured)    2.69 g/cm3 (Calculated)

Optical Data of FluorcanasiteHide

Type:
Biaxial (+)
RI values:
nα = 1.538(1) nβ = 1.546(1) nγ = 1.549(1)
2V:
Measured: 60° (2), Calculated: 63°
Max Birefringence:
δ = 0.011
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
medium, r > v
Pleochroism:
Strong
Comments:
Nm is purple; Ng is lilac; and Np is amber-yellow.

Chemical Properties of FluorcanasiteHide

Formula:
K3Na3Ca5Si12O30F4 · H2O

Crystallography of FluorcanasiteHide

Crystal System:
Monoclinic
Class (H-M):
m - Domatic
Space Group:
Bm
Setting:
Cm
Cell Parameters:
a = 18.846(4) Å, b = 7.242(1) Å, c = 12.65(2) Å
β = 111.84°
Ratio:
a:b:c = 2.602 : 1 : 1.747
Unit Cell V:
1,602.59 ų (Calculated from Unit Cell)
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.872(31)
4.724(20)
4.711(25)
4.204(40)
3.012(22)
2.915(100)
2.357(30)
2.310(23)
(

Type Occurrence of FluorcanasiteHide

General Appearance of Type Material:
short columnar crystals up to 0.2–0.3 × 1–2 mm in size and as intergrowths of these crystals up to 2–3 mm in size
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, where it is designated as canasite-61128
Geological Setting of Type Material:
hyperalkaline pegmatite
Associated Minerals at Type Locality:

Synonyms of FluorcanasiteHide

Other Language Names for FluorcanasiteHide

Related Minerals - Nickel-Strunz GroupingHide

9.DG.05BustamiteCaMn2+(Si2O6)Tric. 1 : P1
9.DG.05FerrobustamiteCaFe2+(Si2O6)Tric.
9.DG.05PectoliteNaCa2Si3O8(OH)Tric. 1 : P1
9.DG.05SeranditeNaMn2+2Si3O8(OH)Tric. 1 : P1
9.DG.05WollastoniteCaSiO3Tric. 1 : P1
9.DG.05Wollastonite-1ACaSiO3Tric.
9.DG.07CascanditeCa(Sc,Fe3+)(HSi3O9)Tric.
9.DG.08Plombièrite[Ca4Si6O16(OH)2 · 2H2O]·(Ca·5H2O)Orth.
9.DG.10Clinotobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)Mon.
9.DG.10RiversideiteCa5(HSi3O9)2 · 2H2OOrth.
9.DG.10Tobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)Orth.
9.DG.15FoshagiteCa4(Si3O9)(OH)2Tric.
9.DG.20JenniteCa9(Si3O9)2(OH)8 · 8H2OTric.
9.DG.25ParaumbiteK3Zr2H(Si3O9)2 · nH2OOrth.
9.DG.25UmbiteK2(Zr,Ti)Si3O9 · H2OOrth.
9.DG.30SørenseniteNa4SnBe2Si6O16(OH)4Mon. 2/m : B2/b
9.DG.35XonotliteCa6(Si6O17)(OH)2Mon. 2/m
9.DG.40HillebranditeCa2(SiO3)(OH)2Orth. mmm (2/m 2/m 2/m) : Cmcm
9.DG.45ZoriteNa8(Ti,Nb)5(Si6O17)2(OH,O)5 · 14H2OOrth.
9.DG.45ChivruaiiteCa4(Ti,Nb)5(Si6O17)2(OH,O)5 · 13-14H2OOrth. mmm (2/m 2/m 2/m) : Cmmm
9.DG.50Haineaultite(Na,Ca)5Ca(Ti,Nb)5(Si6O17)2(OH,F)8 · 5H2OOrth. 2 2 2 : C2 2 2
9.DG.55EpididymiteNa2Be2Si6O15 · H2OOrth. mmm (2/m 2/m 2/m) : Pnma
9.DG.60EudidymiteNa2Be2Si6O15 · H2OMon. 2/m : B2/b
9.DG.65ElpiditeNa2ZrSi6O15 · 3H2OOrth.
9.DG.70Fenaksite(K,Na)4(Fe,Mn)2(Si4O10)2(OH,F)Tric.
9.DG.70LitidioniteCuNaKSi4O10Tric.
9.DG.70ManaksiteKNaMnSi4O10Tric.
9.DG.75TinaksiteK2Na(Ca,Mn2+)2Ti[O|Si7O18(OH)]Tric.
9.DG.75TokkoiteK2Ca4[Si7O18(OH)](OH,F)Tric.
9.DG.75SenkevichiteCsKNaCa2Ti[O|Si7O18(OH)]Tric. 1 : P1
9.DG.80CanasiteK3Na3Ca5Si12O30(OH)4
9.DG.85MiseriteK1.5-x(Ca,Y,REE)5(Si6O15)(Si2O7)(OH,F)2 · yH2OTric.
9.DG.90FrankameniteK3Na3Ca5(Si12O30)(F,OH)4 · H2OTric.
9.DG.92Charoite(K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4 · ~3H2OMon. 2/m : P21/m
9.DG.95YuksporiteK4(Ca,Na)14(Sr,Ba)2(◻,Mn,Fe)(Ti,Nb)4(O,OH)4(Si6O17)2(Si2O7)3(H2O,OH)3Orth.
9.DG.97Eveslogite(Na,K,Ca,Sr,Ba)48 [(Ti,Nb,Mn,Fe2+)12Si48O144(OH)12](F,OH,Cl)14Mon. 2/m : P2/m

Fluorescence of FluorcanasiteHide

Other InformationHide

Notes:
slowly decomposes in 50% HCl, HNO3, and H2SO4 with retention of the silicate structural framework.
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 FluorcanasiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Khomyakov A P, Nechelyustov G N, Krivokoneva G K, Rastsvetaeva R K, Rozenberg K A, Rozhdestvenskay I V (2009) Fluorcanasite, K3Na3Ca5Si12O30(F,OH)4·H2O - a new mineral from Khibiny Alkaline Massif (Kola Peninsula, Russia) and new data on canasite. Zapiski Rossiiskogo Mineralogicheskogo Obshchetstva 138, issue 2, 52-66
Khomyakov A P, Nechelyustov G N, Krivokoneva G K, Rastsvetaeva R K, Rozenberg K A, Rozhdestvenskaya I V (2009) Fluorcanasite, K3Na3Ca5Si12O30(F,OH)4·H2O, a new mineral species from the Khibiny Alkaline Pluton, Kola Peninsula, Russian, and new data on canasite. Geology of Ore Deposits 51, 757-76

Internet Links for FluorcanasiteHide

Localities for FluorcanasiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Russia (TL)
 
  • Northern Region
    • Murmanskaya Oblast'
      • Khibiny Massif
Khomyakov A P, Nechelyustov G N, Krivokoneva G K, Rastsvetaeva R K, Rozenberg K A, Rozhdestvenskay I V (2009) Fluorcanasite, K3Na3Ca5Si12O30(F,OH)4·H2O - a new mineral from Khibiny Alkaline Massif (Kola Peninsula, Russia) and new data on canasite. Zapiski Rossiiskogo Mineralogicheskogo Obshchetstva 138, issue 2, 52-66
Mineral and/or Locality  
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