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Caryochroite

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Hazelnuts - Kάρυον
Formula:
(Na,Sr)3(Fe3+,Mg)10[(O,OH)9|Ti2Si12O37] · (H2O,O,OH)17
Colour:
hazel-brown
Lustre:
Waxy, Dull
Hardness:
Specific Gravity:
2.99
Crystal System:
Monoclinic
Name:
From the Greek κάρυον, "a hazelnut", and χρώσις, "colouring", referring to its colour.
Related to nafertisite.


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Classification of CaryochroiteHide

Approved
Approval Year:
2005
9.HA.65

9 : SILICATES (Germanates)
H : Unclassified silicates
A : With Alkali and Alkali-earth Elements
56.2.10.6

56 : SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
2 : Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination

Physical Properties of CaryochroiteHide

Waxy, Dull
Transparency:
Opaque
Colour:
hazel-brown
Streak:
pale brownish yellow
Hardness:
2½ on Mohs scale
Hardness Data:
Measured
Cleavage:
Distinct/Good
{001}
Parting:
none
Fracture:
Conchoidal
Density:
2.99(5) g/cm3 (Measured)    3.076 g/cm3 (Calculated)

Chemical Properties of CaryochroiteHide

Formula:
(Na,Sr)3(Fe3+,Mg)10[(O,OH)9|Ti2Si12O37] · (H2O,O,OH)17
IMA Formula:
(Na,Sr)3(Fe3+,Mg)10Ti2Si12O37(H2O,O,OH)17

Crystallography of CaryochroiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 16.47 Å, b = 5.303 Å, c = 24.39 Å
β = 93.5°
Ratio:
a:b:c = 3.106 : 1 : 4.599
Unit Cell V:
2,126.26 ų (Calculated from Unit Cell)
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
14.1 (20)
13.3 (30)
12.1 (100)
4.38 (10)
2.692 (12)
2.631 (13)

Type Occurrence of CaryochroiteHide

Synonyms of CaryochroiteHide

Other Language Names for CaryochroiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Elpidite7 photos of Caryochroite associated with Elpidite on mindat.org.
Pyrite5 photos of Caryochroite associated with Pyrite on mindat.org.
Bitumen2 photos of Caryochroite associated with Bitumen on mindat.org.
Albite2 photos of Caryochroite associated with Albite on mindat.org.
Natrolite1 photo of Caryochroite associated with Natrolite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.HA.05ErtixiiteNa2Si4O9
9.HA.10KenyaiteNa2Si22O41(OH)8 · 6H2OMon.
9.HA.20WawayandaiteCa6Mn2BBe9Si6O23(OH,Cl)15Mon.
9.HA.25MagbasiteKBaFe3+Mg7Si8O22(OH)2F6Orth. mmm (2/m 2/m 2/m) : Cmma
9.HA.30AfanasyevaiteCa8[Si2O7]OCl2
9.HA.40IgumnoviteCa3Al2(SiO4)2Cl4Iso.
9.HA.50RudenkoiteSr3(Al3.5Si3.5)O10(OH,O)8Cl2 · H2OMon.
9.HA.55FoshallasiteCa3[Si2O7] · 3H2O(?)
9.HA.60NagelschmidtiteCa7(SiO4)2(PO4)2Hex. 6 : P61
9.HA.70JuaniteCa10Mg4Al2Si11O39 · 4H2O or near
9.HA.75TacharaniteCa12Al2Si18O33 (OH)36Mon.
9.HA.80OyeliteCa10Si8B2O29 · 12.5H2OOrth.
9.HA.85DenisoviteK14+x(Ca,Na,Mn,Fe)48[Si60O162]F16(Ox,OH4−x)·2H2OMon.
9.HA.90Tiettaite(Na,K)17FeTiSi16O29(OH)30 · 2H2OOrth. mmm (2/m 2/m 2/m) : Cmcm

Related Minerals - Dana Grouping (8th Ed.)Hide

56.2.10.1MelanotekitePb2Fe3+2(Si2O7)O2Orth.
56.2.10.2KentrolitePb2Mn3+2(Si2O7)O2Orth. mmm (2/m 2/m 2/m) : Pbcm
56.2.10.6Nechelyustovite(Ba,Sr,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(O,H2O,F)2 · 4.5H2OMon. 2/m : B2/m
56.2.10.7Bykovaite(Ba,Na,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(H2O,F,OH)2 · 3.5H2OMon. 2/m

Fluorescence of CaryochroiteHide

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 CaryochroiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kartashov, P.M., Ferraris, G., Soboleva, S.V., Chukanov, N.V. (2006): Caryochroite, a new heterophyllosilicate mineral species related to nafertisite from the Lovozero massif (Kola Peninsula, Russia). Canadian Mineralogist, 44, 1331-1339

Internet Links for CaryochroiteHide

Localities for CaryochroiteHide

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'
      • Lovozero Massif
        • Alluaiv Mt
Kartashov P.M., Ferraris G., Soboleva S.V., Chukanov N.V. (2006): Caryochroite, a new heterophyllosilicate mineral species related to nafertisite from the Lovozero massif (Kola Peninsula, Russia). Canadian Mineralogist, 44, 1331-1339
Mineral and/or Locality  
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