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Zircophyllite

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Formula:
(K,Na)
 
3
(Mn,Fe
2+
 
)
 
7
(Zr,Ti)
 
2
Si
 
8
O
 
24
(O,OH,F)
 
7
System:TriclinicColour:Black-brown
Lustre:Adamantine, VitreousHardness:4 - 4½
Member of:Astrophyllite Group
Name:Named after its chemical composition containing Zirconium and analogy to Astrophyllite (Greek φύλλον (fyllon), 'leaf', alluding to its micaceous habit).

Classification of Zircophyllite

IMA status:Approved 1971
Strunz 8th edition ID:8/G.12-70
Nickel-Strunz 10th (pending) edition ID:9.DC.05

9 : SILICATES (Germanates)
D : Inosilicates
C : Inosilicates with branched 2-periodic single chains; Si2O6 + 2SiO3 Si4O12
Dana 8th edition ID:69.1.1.5

69 : INOSILICATES Chains with Side Branches or Loops
1 : Chains with Side Branches or Loops with (P=2, and N=4, 2 branches)
Hey's CIM Ref.:17.1.26

17 : Silicates Containing other Anions
1 : Silicates with fluoride (not containing Al)
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Type Occurrence of Zircophyllite

Type Locality:Korgeredaba alkaline Massif, Sangilen Upland, Tuva Republic, Eastern-Siberian Region, Russia
Year of Discovery:1971

Physical Properties of Zircophyllite

Lustre:Adamantine, Vitreous
Colour:Black-brown
Streak:Light brown
Hardness (Mohs):4 - 4½

Crystallography of Zircophyllite

Crystal System:Triclinic

Optical Data of Zircophyllite

Type:Biaxial (-)
RI values: nα = 1.708 nβ = 1.738 nγ = 1.747
2V:Measured: 62° , Calculated: 56°
Maximum Birefringence:δ = 0.039

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:r > v weak

Chemical Properties of Zircophyllite

Formula:
(K,Na)
 
3
(Mn,Fe
2+
 
)
 
7
(Zr,Ti)
 
2
Si
 
8
O
 
24
(O,OH,F)
 
7
Simplified for copy/paste:(K,Na)3(Mn,Fe2+)7(Zr,Ti)2Si8O24(O,OH,F)7
Essential elements:K, Mn, O, Si, Zr
All elements listed in formula:F, Fe, H, K, Mn, Na, O, Si, Ti, Zr
Common Impurities:Ti,Hf,H2O

Relationship of Zircophyllite to other Species

Member of:Astrophyllite Group
Other Members of Group:

- +
Astrophyllite
(K,Na)
 
3
(Fe,Mn)
 
7
Ti
 
2
Si
 
8
O
 
24
(O,OH)
 
7
Hydroastrophyllite
(H
 
3
O,K,Ca)
 
3
(Fe,Mn)
 
5-65
Ti
 
2
Si
 
8
(O,OH)
 
31
Kupletskite
(K,Na)
 
3
(Mn,Fe)
 
7
Ti
 
2
Si
 
8
O
 
26
(OH)
 
4
F
Kupletskite-(Cs)
(Cs,K,Na)
 
3
(Mn,Fe
2+
 
)
 
7
(Ti,Nb)
 
2
Si
 
8
O
 
24
(O,OH,F)
 
7
Magnesioastrophyllite
(Na,K)
 
4
Mg
 
2
(Fe,Fe,Mn)
 
5
Ti
 
2
Si
 
8
O
 
24
(O,OH,F)
 
7
Nalivkinite
Li
 
2
Na(Fe
2+
 
,Mn
2+
 
)
 
7
Ti
 
2
Si
 
8
O
 
26
(OH)
 
4
F
Niobokupletskite
K
 
2
Na(Mn,Zn,Fe)
 
7
(Nb,Zr,Ti)
 
2
Si
 
8
O
 
26
(OH)
 
4
(O,F)
Niobophyllite
(K,Na)
 
3
(Fe,Mn)
 
6
(Nb,Ti)
 
2
Si
 
8
(O,OH,F)
 
31
Sveinbergeite
Ca(Fe
2+
6
Fe
3+
 
)Ti
 
2
(Si
 
4
O
 
12
)
 
2
O
 
2
(OH)
 
5
(H
 
2
O)
 
4
Tarbagataite
(K□)Ca(Fe
2+
 
,Mn)
 
7
Ti
 
2
(Si
 
4
O
 
12
)
 
2
O
 
2
(OH)
 
5
Related Minerals - Nickel-Strunz Grouping):

- +
9.DC.05Astrophyllite
(K,Na)
 
3
(Fe,Mn)
 
7
Ti
 
2
Si
 
8
O
 
24
(O,OH)
 
7
9.DC.05Hydroastrophyllite
(H
 
3
O,K,Ca)
 
3
(Fe,Mn)
 
5-65
Ti
 
2
Si
 
8
(O,OH)
 
31
9.DC.05Kupletskite
(K,Na)
 
3
(Mn,Fe)
 
7
Ti
 
2
Si
 
8
O
 
26
(OH)
 
4
F
9.DC.05Magnesioastrophyllite
(Na,K)
 
4
Mg
 
2
(Fe,Fe,Mn)
 
5
Ti
 
2
Si
 
8
O
 
24
(O,OH,F)
 
7
9.DC.05Niobophyllite
(K,Na)
 
3
(Fe,Mn)
 
6
(Nb,Ti)
 
2
Si
 
8
(O,OH,F)
 
31
9.DC.05Kupletskite-(Cs)
(Cs,K,Na)
 
3
(Mn,Fe
2+
 
)
 
7
(Ti,Nb)
 
2
Si
 
8
O
 
24
(O,OH,F)
 
7
9.DC.05Niobokupletskite
K
 
2
Na(Mn,Zn,Fe)
 
7
(Nb,Zr,Ti)
 
2
Si
 
8
O
 
26
(OH)
 
4
(O,F)
9.DC.05Nalivkinite
Li
 
2
Na(Fe
2+
 
,Mn
2+
 
)
 
7
Ti
 
2
Si
 
8
O
 
26
(OH)
 
4
F
9.DC.05Sveinbergeite
Ca(Fe
2+
6
Fe
3+
 
)Ti
 
2
(Si
 
4
O
 
12
)
 
2
O
 
2
(OH)
 
5
(H
 
2
O)
 
4
Related Minerals - Hey's Index Grouping:

- +
17.1.1Hectorite
Na
 
0.3
(Mg,Li)
 
3
(Si
 
4
O
 
10
)(F,OH)
 
2
17.1.3Agrellite
NaCa
 
2
Si
 
4
O
 
10
F
17.1.4Fluorapophyllite-(Na)
NaCa
 
4
(Si
 
8
O
 
20
)F · 8H
 
2
O
17.1.5Fluorapophyllite-(K)
KCa
 
4
(Si
 
8
O
 
20
)(F,OH) · 8H
 
2
O
17.1.6Hydroxyapophyllite-(K)
KCa
 
4
(Si
 
8
O
 
20
)(OH,F) · 8H
 
2
O
17.1.7Hsianghualite
Ca
 
3
Li
 
2
(Be
 
3
Si
 
3
O
 
12
)F
 
2
17.1.8Leucophanite
NaCaBeSi
 
2
O
 
6
F
17.1.9Norbergite
Mg
 
3
(SiO
 
4
)(F,OH)
 
2
17.1.10Chondrodite
(Mg,Fe
2+
 
)
 
5
(SiO
 
4
)
 
2
(F,OH)
 
2
17.1.11Humite
(Mg,Fe
2+
 
)
 
7
(SiO
 
4
)
 
3
(F,OH)
 
2
17.1.12Clinohumite
Mg
 
9
(SiO
 
4
)
 
4
F
 
2
17.1.13Canasite
K
 
2
Na
 
4
Ca
 
5
(Si
 
12
O
 
30
(OH,F)
 
4
17.1.14Charoite
(K,Sr)
 
15-16
(Ca,Na)
 
32
[Si
 
6
O
 
11
(O,OH)
 
6
]
 
2
[Si
 
12
O
 
18
(O,OH)
 
12
]
 
2
[Si
 
17
O
 
25
(O,OH)
 
18
]
 
2
(OH,F)
 
4
· ~3H
 
2
O
17.1.15Cuspidine
Ca
 
4
(Si
 
2
O
 
7
)(F,OH)
 
2
17.1.16Bultfonteinite
Ca
 
2
(HSiO
 
4
)F · H
 
2
O
17.1.17Zeophyllite
Ca
 
13
(Si
 
10
O
 
28
)F
 
10
· 6H
 
2
O
17.1.18Rowlandite-(Y)
(Y,Ce)
 
4
Fe
2+
 
(Si
 
2
O
 
7
)
 
2
F
 
2
(?)
17.1.19Yuksporite
(K,Ba)NaCa
 
2
(Si,Ti)
 
4
O
 
11
(F,OH) · H
 
2
O
17.1.20Yftisite-(Y)
(Y,Dy,Er)
 
4
(Ti,Sn)(SiO
 
4
)
 
2
O(F,OH)
 
6
17.1.21Mosandrite
(◻,Ca,Na)
 
3
(Ca,REE)
 
4
Ti(Si
 
2
O
 
7
)
 
2
[H
 
2
O,OH,F]
 
4
· H
 
2
O
17.1.22Hiortdahlite
(Ca,Na)
 
3
(Zr,Ti)(Si
 
2
O
 
7
)(O,OH,F)
 
2
17.1.23Burpalite
Na
 
2
CaZr(Si
 
2
O
 
7
)F
 
2
17.1.24Seidozerite
Na
 
8
Mn
2+
2
Zr
 
3
Ti
 
3
(Si
 
2
O
 
7
)
 
4
O
 
4
F
 
4
17.1.25Thorosteenstrupine
CaMnThSi
 
4
O
 
11
(OH)F · 6H
 
2
O
17.1.27Jinshajiangite
BaNaFe
2+
4
Ti
 
2
(Si
 
2
O
 
7
)
 
2
O
 
2
(OH)
 
2
F
17.1.28Rosenbuschite
(Ca,Na)
 
3
(Zr,Ti)(Si
 
2
O
 
7
)OF
17.1.29Narsarsukite
Na
 
4
(Ti,Fe)
 
2
[Si
 
8
O
 
20
](O,OH,F)
 
2
17.1.30Sonolite
Mn
2+
9
(SiO
 
4
)
 
4
(OH,F)
 
2

Other Names for Zircophyllite

Synonyms:
IMA1971-047
Other Languages:
German:Zircophyllit
Spanish:Zircophyllita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Zircophyllite

Reference List:

- +
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1972): 101: 459-463.

American Mineralogist (1973): 58: 967.

Canadian Mineralogist (2003): 41: 1-26.

Internet Links for Zircophyllite

Search Engines:
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  • External Links:
  • Look for Zircophyllite on Webmineral
  • Look for Zircophyllite on Athena Mineralogy
  • Look for Zircophyllite on Wikipedia
  • Look for Zircophyllite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Zircophyllite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
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  • Localities for Zircophyllite

    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Canada
     
    • Québec
      • Montérégie
        • La Vallée-du-Richelieu RCM
          • Mont Saint-Hilaire
    PIILONEN, P.C. (2001) Crystal chemistry, Mössbauer spectroscopy and paragenesis of astrophyllite group minerals from over and undersaturated alkaline rocks. Unpublished Ph. D. Thesis, Ottawa-Carleton Geoscience Centre, University of Ottawa, Canada. 523 p.
    Portugal
     
    • Azores District
      • San Miguel Island
    Russia
     
    • Eastern-Siberian Region
      • Tuva Republic
        • Sangilen Upland
    ZVMO,(1972) 101, 459-463; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    South Africa
     
    • North West Province
      • Western Bushveld Complex
    R. Liferovich - L. Horváth p.c. (2004)
    USA
     
    • Arkansas
      • Hot Spring Co.
        • Magnet Cove
    H. Barwood - unpublished (2010)
      • Pulaski Co.
        • Little Rock
          • Granite Mountain area
    Henry Barwood - unpublished (2010)
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