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Cámaraite

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Fernando Cámara
Formula:
Ba3Na(Fe2+,Mn)8Ti4(Si2O7)4O4(OH,F)7
Colour:
Orange-red to brownish-red
Lustre:
Vitreous
Specific Gravity:
3.871
Crystal System:
Triclinic
Name:
Named by E. Sokolova, Y. Abdu, F.C. Hawthorne, A.V. Stepanov, B.K. Bekenova, P.E. Kotel'nikov in 2009 in honor of Fernando Cámara (24 May 1967, Melilla, Spain - ) mineralogist, crystallographer, and professor at the University of Milan. He has a special interest in Ti-silicate minerals, amphiboles, and arrojadite- and cancrinite-group minerals.
Closely related to jinshajiangite and bafertisite.


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Classification of CámaraiteHide

Approved
Approval Year:
2009
First Published:
2009

Physical Properties of CámaraiteHide

Vitreous
Transparency:
Translucent
Colour:
Orange-red to brownish-red
Comment:
Paler than bafertisite
Streak:
Pale yellow
Comment:
<5 (less than bafertisite)
Tenacity:
Brittle
Cleavage:
Perfect
{001}
Parting:
None observed
Density:
3.871 g/cm3 (Measured)    4.018 g/cm3 (Calculated)
Comment:
Measured is less than calculated because of intergrowths

Optical Data of CámaraiteHide

Type:
Biaxial (+)
Pleochroism:
Strong
Comments:
X = light brown, Y = reddish-brown, Z = yellow-brown, with Z < X < Y

Chemical Properties of CámaraiteHide

Formula:
Ba3Na(Fe2+,Mn)8Ti4(Si2O7)4O4(OH,F)7
IMA Formula:
Ba3NaFe2+8Ti4(Si2O7)4O4(OH)4F3

Crystallography of CámaraiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Cell Parameters:
a = 10.6965(7) Å, b = 21.478(2) Å, c = 21.478(2) Å
α = 99.345(1)°, β = 92.315(2)°, γ = 89.993(2)°
Ratio:
a:b:c = 0.498 : 1 : 1
Unit Cell V:
4,864.78 ų (Calculated from Unit Cell)
Twinning:
None observed
Comment:
Non-standard space group C-1.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.825 (30)
3.394 (50)
3.182 (50)
2.869 (40)
2.788 (90)
2.629 (100)
2.101 (50)
1.721 (70)

Type Occurrence of CámaraiteHide

General Appearance of Type Material:
Platey crystals to 15x8mm and star-shaped aggregates of crystals with different
orientations, on fracture surfaces as intergrowths with jinshajiangite and bafertisite.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Moscow, Russia (catalog no. 3828/1 and 3
828/2).
Associated Minerals at Type Locality:

Synonyms of CámaraiteHide

Other Language Names for CámaraiteHide

Fluorescence of CámaraiteHide

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 CámaraiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Williams, P.A., Hatert, F., Pasero, M. (2009) New minerals approved in 2009. in International Mineralogical Association, 1-34.
Sokolova, E., Abdu, Y., Hawthorne, F.C., Stepanov, A.V., Bekenova, G.K., Kotel'nikov, P.E. (2009) Cámaraite, Ba3NaTi4(Fe2+,Mn)8(Si2O7)4O4(OH,F)7. I. A new Ti-silicate mineral from the Verkhnee Espe Deposit, Akjailyautas Mountains, Kazakhstan. Mineralogical Magazine: 73: 847-854.
Cámara, F., Sokolova, E., Nieto, F. (2009) Cámaraite, Ba3NaTi4(Fe2+,Mn)8(Si2O7)4O4(OH,F)7. II. The crystal structure and crystal chemistry of a new group-II Ti-disilicate mineral. Mineralogical Magazine: 73: 855-870.
Piilonen, P.C., Poirier, G. (2010) New mineral names. American Mineralogist: 95: 1357-1361.

Internet Links for CámaraiteHide

Localities for CámaraiteHide

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.
Kazakhstan (TL)
 
  • Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya Oblast')
    • Tarbagatai Range
      • Akzhaylyautas Mts (Akzhailyautas Mts; Akjaylautas Mts; Akzhalautas Mts)
IMA Approvals - May 2009 Sokolova, E., Y. Abdu, F.C. Hawthorne, A.V. Stepanov, G.K. Bekenova, and P.E. Kotel’nikov (2009) Cámaraite, Ba3NaTi4(Fe2+,Mn)8(Si2O7)4O4(OH,F)7. I. A new Ti-silicate mineral from the Verkhnee Espe Deposit, Akjailyautas Mountains, Kazakhstan. Mineralogical Magazine, 73, 847–854.
Mineral and/or Locality  
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