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Fluor-tsilaisite

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Formula:
Na(Mn2+)3Al6(Si6O18)(BO3)3(OH)3F
Colour:
Greenish yellow
Lustre:
Vitreous
Hardness:
7
Specific Gravity:
3.134 (Calculated)
Crystal System:
Trigonal
Name:
For being the F analogue of tsilaisite.
The F analogue of tsilaisite.
Related to tsilaisite through the substitution WF ↔ W(OH) and with fluor-elbaite through the substitution Y(Al + Li) ↔ 2YMn2+, and appears to be a stepwise intermediate during tourmaline evolution from tsilaisite to fluor-elbaite.


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Classification of Fluor-tsilaisiteHide

Approved
Approval Year:
2012

Physical Properties of Fluor-tsilaisiteHide

Vitreous
Colour:
Greenish yellow
Streak:
White
Hardness:
Comment:
~7
Fracture:
Sub-Conchoidal
Density:
3.134 g/cm3 (Calculated)

Optical Data of Fluor-tsilaisiteHide

Type:
Uniaxial (-)
Pleochroism:
Visible
Comments:
In plane-polarized light, O = pale greenish yellow and E = very pale greenish yellow

Chemical Properties of Fluor-tsilaisiteHide

Formula:
Na(Mn2+)3Al6(Si6O18)(BO3)3(OH)3F
IMA Formula:
NaMn2+3Al6(Si6O18)(BO3)3(OH)3F

Crystallography of Fluor-tsilaisiteHide

Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3m
Cell Parameters:
a = 15.9398(6) Å, c = 7.1363(3) Å
Ratio:
a:c = 1 : 0.448
Unit Cell V:
1570.25 ų
Z:
3

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.339 (34)
4.212 (57)
3.985 (74)
3.455 (58)
2.945 (57)
2.575 (100)
2.036 (36)
1.915 (29)

Type Occurrence of Fluor-tsilaisiteHide

Place of Conservation of Type Material:
Type material is deposited in the collections of the Museo di Scienze della Terra, settore Mineralogico Petrografico ‘‘Carlo Lorenzo Garavelli’’, Campus Universitario, Bari, Italy, catalogue number NM16.
Geological Setting of Type Material:
In an aplitic dyke of a LCT-type granite pegmatite
Associated Minerals at Type Locality:

Synonyms of Fluor-tsilaisiteHide

Relationship of Fluor-tsilaisite to other SpeciesHide

Other Members of this group:
AdachiiteCaFe3Al6(Si5AlO18)(BO3)3(OH)3(OH)Trig. 3m : R3m
BosiiteNaFe3+3(Al4Mg2)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
Chromium-draviteNa(Mg3)Cr3+6(Si6O18)(BO3)3(OH)3(OH)Trig.
Chromo-alumino-povondraiteNa(Cr3)(Al4Mg2)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
DarrellhenryiteNa(LiAl2)Al6(BO3)3Si6O18(OH)3O Trig. 3m : R3m
DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
Fluor-buergeriteNa(Fe3+3)Al6(Si6O18)(BO3)3O3FTrig. 3m : R3m
Fluor-draviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Fluor-elbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Fluor-feruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3F
Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Fluor-schorlNa(Fe2+3)Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Fluor-uviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Foitite(□,Na)(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3OHTrig. 3m : R3m
LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
LucchesiiteCaFe2+3 Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
Luinaite-(OH)Na(Fe2+)3Al6(Si6O18)(BO3)3(OH)3(OH)Mon. m : Bm
Magnesio-foitite(□,Na)(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)Trig.
MaruyamaiteK(MgAl2)(Al5Mg)(BO3)3(Si6O18)(OH)3OTrig. 3m : R3m
OleniteNa(Al3)Al6(Si6O18)(BO3)3O3(OH)Trig.
Oxy-chromium-draviteNa(Cr)3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O Trig. 3m : R3m
Oxy-draviteNa(MgAl2)MgAl5(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
Oxy-foitite□(Fe2+Al2)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m (3 2/m) : R3m
Oxy-rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3O
Oxy-schorlNa(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
Oxy-uviteCaMg3Al6(Si6O18)(BO3)3(OH)3O
Oxy-vanadium-draviteNa(V)3(V4Mg2)Si6O18(BO3)3(OH)3OTrig. 3m : R3m
PovondraiteNaFe3+3(Mg2Fe3+4)(Si6O18)(BO3)3(OH)3OTrig.
Rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
SchorlNa(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
TsilaisiteNa(Mn2+)3Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
UM2000-64-SiO:BFeHKMgK, Mg, Fe, Si, B, O, H
Unnamed (Pb-dominant Tourmaline)(Pb,Na)(Li,Al)3Al6(Si6O18)(BO3)3(OH)3(F,OH)
Uvite SeriesCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)Trig. 3m : R3m
Vanadio-oxy-chromium-draviteNa(V)3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O Trig. 3m : R3m
Vanadio-oxy-draviteNaV3(Al4Mg2)(Si6O18)(BO3)3(OH)3OTrig. 3m

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.

References for Fluor-tsilaisiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bosi, F., Andreozzi, G.B., Agros, G. and Scandale, E. (2012) Fluor-tsilaisite, IMA 2012-044. CNMNC Newsletter No. 14, October 2012, page 1287; Mineralogical Magazine, 76, 1281-1288.
Bosi, F., Andreozzi, G.B., Agrosì, G. and Scandale (2015): Fluor-tsilaisite, NaMn3Al6(Si6O18)(BO3)3(OH)3F, a new tourmaline from San Piero in Campo (Elba, Italy) and new data on tsilaisitic tourmaline from the holotype specimen locality. Mineralogical Magazine. 79, 89-101

Internet Links for Fluor-tsilaisiteHide

Localities for Fluor-tsilaisiteHide

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.
Italy
 
  • Lombardy
    • Sondrio Province
      • Valchiavenna
        • Novate Mezzola
Guastoni, A., Pozzi, G., Secco, L., Schiazza, M., Pennacchioni, G., Fioretti, A. M., & Nestola, F. (2016). Monazite-(Ce) and Xenotime-(Y) From An Lct, NYF Tertiary Pegmatite Field: Evidence From A Regional Study In the Central Alps (Italy and Switzerland). The Canadian Mineralogist, 54(4), 863-877.
  • Tuscany
    • Livorno Province
      • Elba Island
        • Campo nell'Elba
          • San Piero in Campo
Bosi, F., Andreozzi, G.B., Agros, G. and Scandale, E. (2012) Fluor-tsilaisite, IMA 2012-044. CNMNC Newsletter No. 14, October 2012, page 1287; Mineralogical Magazine, 76, 1281-1288; Bosi, F., Andreozzi, G.B., Agrosì, G. and Scandale (2015): Fluor-tsilaisite, NaMn3Al6(Si6O18)(BO3)3(OH)3F, a new tourmaline from San Piero in Campo (Elba, Italy) and new data on tsilaisitic tourmaline from the holotype specimen locality. Mineralogical Magazine. 79, 89-101
Mineral and/or Locality  
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