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Hydroastrophyllite

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Formula:
(H3O,K,Ca)3(Fe,Mn)5-65Ti2Si8(O,OH)31
Hardness:
3 - 4
Crystal System:
Triclinic
Astrophyllite Group.

Originally described from Sichuan Province.

Note:
Hydroastrophyllite was never approved by the CNMNC, and is thus not included in the IMA list of minerals.


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Classification of HydroastrophylliteHide

Notes:
Unnamed (probably valid)
Approval History:
Unnamed, but probably valid.
9.DC.05

9 : SILICATES (Germanates)
D : Inosilicates
C : Inosilicates with branched 2-periodic single chains; Si2O6 + 2SiO3 Si4O12
69.1.1.6

69 : INOSILICATES Chains with Side Branches or Loops
1 : Chains with Side Branches or Loops with (P=2, and N=4, 2 branches)
14.9.30

14 : Silicates not Containing Aluminum
9 : Silicates of Ti

Physical Properties of HydroastrophylliteHide

Hardness:
3 - 4 on Mohs scale

Optical Data of HydroastrophylliteHide

Type:
Biaxial (-)
RI values:
nα = 1.660 nβ = 1.720 nγ = 1.728
2V:
Measured: 40° , Calculated: 38°
Max Birefringence:
δ = 0.068
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
weak

Chemical Properties of HydroastrophylliteHide

Formula:
(H3O,K,Ca)3(Fe,Mn)5-65Ti2Si8(O,OH)31
Common Impurities:
Al,Nb,Ta,Mg,Ba,Na,F,H2O

Crystallography of HydroastrophylliteHide

Crystal System:
Triclinic
Cell Parameters:
a = 11.86 Å, b = 11.98 Å, c = 5.42 Å
α = 103.42°, β = 95.15°, γ = 112.2°
Ratio:
a:b:c = 0.99 : 1 : 0.452
Unit Cell V:
679.94 ų (Calculated from Unit Cell)

Other Language Names for HydroastrophylliteHide

Relationship of Hydroastrophyllite to other SpeciesHide

Other Members of this group:
AstrophylliteK2NaFe2+7Ti2Si8O28(OH)4FTric. 1 : P1
BulgakiteLi2(Ca,Na)Fe2+7Ti2(Si4O12)2O2(OH)4(F,O)(H2O)2Tric. 1 : P1
NalivkiniteLi2Na(Fe2+,Mn2+)7Ti2Si8O26(OH)4FTric. 1 : P1
Niobophyllite(K,Na)3(Fe,Mn)6(Nb,Ti)2Si8(O,OH,F)31Tric.
Tarbagataite(K□)Ca(Fe2+,Mn)7Ti2(Si4O12)2O2(OH)5 Tric. 1 : P1
ZircophylliteK2NaFe2+7Zr2(Si4O12)2O2(OH)4FTric.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Quartz10 photos of Hydroastrophyllite associated with Quartz on mindat.org.
Riebeckite4 photos of Hydroastrophyllite associated with Riebeckite on mindat.org.
Calcian Elpidite4 photos of Hydroastrophyllite associated with Calcian Elpidite on mindat.org.
Aegirine4 photos of Hydroastrophyllite associated with Aegirine on mindat.org.
Zircon3 photos of Hydroastrophyllite associated with Zircon on mindat.org.
Microcline3 photos of Hydroastrophyllite associated with Microcline on mindat.org.
Tarbagataite3 photos of Hydroastrophyllite associated with Tarbagataite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.DC.05AstrophylliteK2NaFe2+7Ti2Si8O28(OH)4FTric. 1 : P1
9.DC.05Kupletskite(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4FTric.
9.DC.05LobanoviteK2Na(Fe2+4Mg2Na)Ti2(Si4O12)2O2(OH)4Mon. 2/m : B2/m
9.DC.05Niobophyllite(K,Na)3(Fe,Mn)6(Nb,Ti)2Si8(O,OH,F)31Tric.
9.DC.05ZircophylliteK2NaFe2+7Zr2(Si4O12)2O2(OH)4FTric.
9.DC.05Kupletskite-(Cs)Cs2NaMn2+7Ti2(Si4O12)2O2(OH)4FTric.
9.DC.05NiobokupletskiteK2NaMn2+7(Nb,Ti)(Si4O12)2O2(OH)4(O,F)Tric. 1 : P1
9.DC.05NalivkiniteLi2Na(Fe2+,Mn2+)7Ti2Si8O26(OH)4FTric. 1 : P1
9.DC.05SveinbergeiteCa(Fe2+6Fe3+)Ti2(Si4O12)2O2(OH)5(H2O)4Tric. 1 : P1

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

69.1.1.1AstrophylliteK2NaFe2+7Ti2Si8O28(OH)4FTric. 1 : P1
69.1.1.2Kupletskite(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4FTric.
69.1.1.3Kupletskite-(Cs)Cs2NaMn2+7Ti2(Si4O12)2O2(OH)4FTric.
69.1.1.4Niobophyllite(K,Na)3(Fe,Mn)6(Nb,Ti)2Si8(O,OH,F)31Tric.
69.1.1.5ZircophylliteK2NaFe2+7Zr2(Si4O12)2O2(OH)4FTric.
69.1.1.5NalivkiniteLi2Na(Fe2+,Mn2+)7Ti2Si8O26(OH)4FTric. 1 : P1
69.1.1.6SveinbergeiteCa(Fe2+6Fe3+)Ti2(Si4O12)2O2(OH)5(H2O)4Tric. 1 : P1
69.1.1.7LobanoviteK2Na(Fe2+4Mg2Na)Ti2(Si4O12)2O2(OH)4Mon. 2/m : B2/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.9.1NatisiteNa2Ti(SiO4)OTet.
14.9.2LorenzeniteNa2Ti2(Si2O6)O3Orth. mmm (2/m 2/m 2/m) : Pbcn
14.9.3LintisiteLiNa3Ti2(Si2O6)2O2 · 2H2OMon.
14.9.4DavaniteK2TiSi6O15Tric.
14.9.5KazakoviteNa6Mn2+Ti(Si6O18)Trig.
14.9.6TitaniteCaTi(SiO4)OMon. 2/m : P21/b
14.9.7OhmiliteSr3(Ti,Fe3+)(Si4O12)(O,OH) · 2-3H2OMon.
14.9.8Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2Mon.
14.9.9BenitoiteBaTi(Si3O9)Hex. 6 m2 : P62c
14.9.10BatisiteBaNaNaTi2(Si4O12)O2Orth.
14.9.11FresnoiteBa2Ti(Si2O7)OTet.
14.9.12Joaquinite-(Ce)NaBa2Ce2FeTi2[Si4O12]2O2(OH,F) · H2OMon. 2 : B2
14.9.13Orthojoaquinite-(Ce)NaBa2Ce2FeTi2[Si4O12]2O2(O,OH) · H2O
14.9.14StrontiojoaquiniteSr2Ba2(Na,Fe)2Ti2[Si4O12]2O2(O,OH)2 · H2OMon.
14.9.15Bario-orthojoaquinite(Ba,Sr)4Fe2Ti2[Si4O12]2O2 · H2OOrth.
14.9.16Strontio-orthojoaquinite(Na,Fe)2Sr2Ba2Ti2[Si4O12]2O2(O,OH)2 · H2OOrth.
14.9.17BafertisiteBa2Fe2+4Ti2(Si2O7)2O2(OH)2F2Tric.
14.9.18HejtmaniteBa2(Mn2+,Fe2+)4Ti2(Si2O7)2O2(OH)2F2Tric. 1
14.9.19Delindeite(Na,K)2(Ba,Ca)2(Ti,Fe,Al)3(Si2O7)2O2(OH)2 · 2H2OMon.
14.9.20Barytolamprophyllite(Ba,Na)2(Na,Ti,Fe3+)4Ti2(Si2O7)2O(OH,F)Mon.
14.9.21Trimounsite-(Y)Y2Ti2(SiO4)O5Mon.
14.9.22Perrierite-(Ce)Ce4MgFe3+2Ti2(Si2O7)2O8
14.9.23Chevkinite(Ce,Ca,Th)4(Fe,Mn)2(Ti,Fe)3[Si2O7]2O8
14.9.24Strontiochevkinite(Sr,La,Ce,Ca)4Fe2+(Ti,Zr)2Ti2(Si2O7)2O8Mon.
14.9.25TisinaliteNa3H3(Mn,Ca,Fe)TiSi6(O,OH)18 · 2H2OTrig.
14.9.26NeptuniteNa2KLiFe2+2Ti2Si8O24Mon. m : Bb
14.9.27ManganoneptuniteNa2KLiMn2+2Ti2Si8O24Mon.
14.9.28Kupletskite(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4FTric.
14.9.29AstrophylliteK2NaFe2+7Ti2Si8O28(OH)4FTric. 1 : P1
14.9.31LobanoviteK2Na(Fe2+4Mg2Na)Ti2(Si4O12)2O2(OH)4Mon. 2/m : B2/m
14.9.32BaratoviteKCa7(Ti,Zr)2Li3Si12O36F2Mon.
14.9.34AenigmatiteNa2Fe2+5Ti(Si6O18)O2Tric. 1 : P1
14.9.35SchorlomiteCa3(Ti,Fe3+)2((Si,Fe3+)O4)3Iso.
14.9.36TinaksiteK2Na(Ca,Mn2+)2Ti[O|Si7O18(OH)]Tric.
14.9.37Janhaugite(Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2Mon. 2/m : P21/m
14.9.38KoashviteNa6(Ca,Mn)(Ti,Fe)Si6O18 · H2OOrth.

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 HydroastrophylliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
X-Ray Laboratory, Hubei Geologic College (1974): The crystal chemistry of astrophyllite group minerals. Scientia Geologica Sinica 1974(1), 18-33 (in Chinese with English abstract). [American Mineralogist: 60, 736-737 (abstract)]
Voloshin A.V., Lyalina L.M., Ovchinnikov N.O., Savchenko E.E., Bogdanova A.N. (2004) Hydroastrophyllite and Mossbauer spectroscopy of astrophyllite group minerals from silexites of Western Keivy, Kola peninsula. Geokhimiya, no. 10, 1-6 (in Russian).

Internet Links for HydroastrophylliteHide

Localities for HydroastrophylliteHide

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.
China
 
X-Ray Laboratory, Hubei Geologic College (1974): Scientia Geologica Sinica 1974(1), 18-33.
Kazakhstan
 
  • Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya Oblast')
    • Tarbagatai Range
      • Akzhaylyautas Mts (Akzhailyautas Mts; Akjaylautas Mts; Akzhalautas Mts)
Pavel M. Kartashov
Mongolia
 
  • Gobi Desert
    • Khan Bogdo Massif (Khan-Bogdinskii)
Reiner Mielke
Norway
 
  • Vestfold
    • Sandefjord
      • Vesterøya
Berge, S. A. & Andersen, F. (2002): Mineralforekomster i Sandefjordområdet. Bergverksmuseets Skrift 20, 50-59
Russia
 
  • Northern Region
    • Murmanskaya Oblast'
      • Belye Tundry Massif
Voloshin, A.V., Lyalina, L.M., Savchenko, Ye.E., Selivanova, E.A. [Волошин А.В., Лялина Л.М., Савченко Е.Э., Селиванова Е.А.] (2005): Intragranite rare-metal pegmatites of the alkaline granite formation of the Kola Peninsula. Quartz-zircon pseudomorphs [Внутригранитные редкометалльные пегматиты щелочногранитовой формации Кольского полуострова. Кварц-цирконовые псевдоморфозы]. Zapiski RMO [Записки РМО], 134, 4, 98-107; Lyalina, L.M., Selivanova, E.A., Savchenko, Ye.E., Zozulya, D.R., Kadyrova, G.I. (2014): Minerals of the gadolinite-(Y)–hingganite-(Y) series in the alkali granite pegmatites of the Kola Peninsula. Geology of Ore Deposits, 56, 675-684.
      • Keivy Mountains
- Voloshin A.V., Lyalina L.M., Ovchinnikov N.O., Savchenko E.E., Bogdanova A.N. (2004) Hydroastrophyllite and Mossbauer spectroscopy of astrophyllite group minerals from silexites of Western Keivy, Kola peninsula, - Geokhimiya, №10, c. 1-6 (in Russ.).
www.koeln.netsurf.de/~w.steffens/khib.htm
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