Hydroxycancrinite
A valid IMA mineral species
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About Hydroxycancrinite
Formula:
Na8(Al6Si6O24)(OH)2 · 2H2O
Colour:
Light blue to colourless
Lustre:
Vitreous
Hardness:
6
Specific Gravity:
2.32
Crystal System:
Hexagonal
Member of:
Name:
In allusion to its composition, being the HYDROXYl-dominant end member of the series with cancrinite.
Unique Identifiers
Mindat ID:
1990
Long-form identifier:
mindat:1:1:1990:9
IMA Classification of Hydroxycancrinite
Approved
IMA Formula:
(Na,Ca,K)8(Al6Si6O24)(OH,CO3)2·2H2O
Approval year:
1990
First published:
1992
Classification of Hydroxycancrinite
9.FB.05
9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
B : Tektosilicates with additional anions
9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
B : Tektosilicates with additional anions
76.2.5.8
76 : TECTOSILICATES Al-Si Framework
2 : Al-Si Framework Feldspathoids and related species
76 : TECTOSILICATES Al-Si Framework
2 : Al-Si Framework Feldspathoids and related species
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Hccn | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Hydroxycancrinite
Vitreous
Transparency:
Transparent
Colour:
Light blue to colourless
Streak:
White
Hardness:
6 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{1010}
{1010}
Fracture:
Irregular/Uneven
Density:
2.32(2) g/cm3 (Measured) 2.26 g/cm3 (Calculated)
Optical Data of Hydroxycancrinite
Type:
Uniaxial (-)
RI values:
nω = 1.494 nε = 1.501
Max. Birefringence:
δ = 0.007
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate (negative)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Interference Figure:
This shows the idealized uniaxial interference figure - the conoscopic
(convergent-light, Bertrand-lens-in) view, for a grain cut with the optic axis
centred and vertical. The coloured rings are isochromatics, computed with the
same physics as the Michel-Lévy bar above; the dark cross is the isogyre.
For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.
For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.
Chemistry of Hydroxycancrinite
Mindat Formula:
Na8(Al6Si6O24)(OH)2 · 2H2O
Element Weights:
Common Impurities:
K,Ca,Mg,Mn,Fe,C
Crystallography of Hydroxycancrinite
Crystal System:
Hexagonal
Class (H-M):
6 - Pyramidal
Space Group:
P63
Cell Parameters:
a = 12.740(3) Å, c = 5.182(2) Å
Ratio:
a:c = 1 : 0.407
Unit Cell V:
728.39 ų (Calculated from Unit Cell)
Z:
1
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.26 Å | (100) |
| 3.68 Å | (70) |
| 4.70 Å | (60) |
| 2.756 Å | (50) |
| 2.433 Å | (30) |
| 6.43 Å | (25) |
| 4.17 Å | (20) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Hydroxycancrinite
General Appearance of Type Material:
Massive aggregates 10-15 µm across.
Place of Conservation of Type Material:
Vernadsky Geological Museum, Moscow; A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia.
Geological Setting of Type Material:
In veins 1-5 cm wide in ultra-alkalic pegmatites.
Associated Minerals at Type Locality:
Synonyms of Hydroxycancrinite
Other Language Names for Hydroxycancrinite
Relationship of Hydroxycancrinite to other Species
Member of:
Other Members of Cancrinite Group:
| Afghanite | (Na,K)22Ca10(Si24Al24O96)(SO4)6Cl6 | Trig. 3m : P31c |
| Alloriite | (Na,Ca,K)26Ca4(Al6Si6O24)4(SO4)6Cl6 | Trig. 3m : P31c |
| Balliranoite | (Na,K)6Ca2(Si6Al6O24)Cl2(CO3) | Hex. 6 : P63 |
| Betzite | Na6Ca2(Al6Si6O24)Cl4 | Hex. 6 : P63 |
| Biachellaite | (Na,Ca,K)8(Al6Si6O24)(SO4)2(OH)0.5 · H2O | Trig. 3 : P3 |
| Bystrite | (Na,K)7Ca(Al6Si6O24)(S5)Cl | Trig. 3m : P31c |
| Cancrinite | (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O | Hex. 6 : P63 |
| Cancrisilite | Na7(Al5Si7O24)(CO3) · 3H2O | Hex. 6mm : P63mc |
| Carbobystrite | Na8(Al6Si6O24)(CO3) · 3.5H2O | Trig. 3m : P31c |
| Davyne | (Na,K)6Ca2(Al6Si6O24)(Cl2,SO4)2 | Hex. 6/m : P63/m |
| Depmeierite | Na8(Al6Si6O24)(PO4,CO3)1-x · 3H2O (x<0.5) | Hex. 6 : P63 |
| Fantappièite | [Na82.5Ca33K16.5](Si99Al99O396)(SO4)33 · 4H2O | Trig. 3 : R3 |
| Farneseite | (Na,Ca,K)56(Al6Si6O24)7(SO4)12 · 6H2O | Hex. 6/m : P63/m |
| Franzinite | (Na,K)6Ca2(Al6Si6O24)(SO4)2 · 0.5H2O | Hex. |
| Giuseppettite | (Na,K,Ca)7-8(Al6Si6O24)(SO4,Cl)1-2 | Trig. 3m : P31c |
| Kircherite | Na5Ca2K(Al6Si6O24)(SO4)2 · 0.33H2O | Trig. 32 : R32 |
| Kyanoxalite | Na7(Al6-xSi6+xO24)(C2O4)0.5+x · 5H2O (0 < x < 0.5) | Hex. 6 : P63 |
| Liottite | (Na,K)16Ca8(Al6Si6O24)3(SO4)5Cl4 | Hex. 6 : P6 |
| Marinellite | (Na,K)42Ca6(Al6Si6O24)6(SO4)8Cl2 · 3H2O | Trig. 3m : P31c |
| Microsommite | Na4K2Ca2(Al6Si6O24)(SO4)Cl2 | Hex. 622 : P6322 |
| Pitiglianoite | Na6K2(Al6Si6O24)(SO4) · 2H2O | Hex. 6 : P63 |
| Quadridavyne | (Na,K)6Ca2(Al6Si6O24)Cl4 | Hex. 6/m : P63/m |
| Sacrofanite | (Na61K19Ca32)(Si84Al84O336)(SO4)26Cl2F6 · 2H2O | Hex. |
| Steudelite | Na3(K17Ca7)Ca4(Al24Si24O96)(SO3)6F6 · 4H2O | Hex. 6m2 : P62c |
| Sulfhydrylbystrite | Na5K2Ca[Al6Si6O24](S5)2(SH) | Trig. 3m : P31c |
| Tounkite | (Na,Ca,K)8(Si6Al6)O24(SO4)2Cl · 0.5H2O | Hex. 622 : P6222 |
| 'UM2004-48-SiO:AlClCaNaS' | (Na,Ca)8(Si6Al6)O24(SO4)1.7Cl1.3 | |
| 'UM2009-23-SiO:AlCCaClHKNaS' | (Na,Ca)24K10[(Si,Al)60O120](SO4)5.6Cl1.5(CO3)0.4 · 11H2O | Trig. 3 : P3 |
| Vishnevite | (Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O | Hex. 6 : P63 |
Common Associates
Associations Based on Photo Data:
| 1 photo of Hydroxycancrinite associated with Steenstrupine-(Ce) | Na14Mn2+2Fe3+2Ce6Zr(Si6O18)2(PO4)6(PO3OH)(OH)2 · 2H2O |
Related Minerals - Strunz-mindat Grouping
| 9.FB. | Perchukite-(Y) | PbYAsSi2O8 |
| 9.FB. | Åsgruvanite-(Ce) | Ce16Ca5Al(SiO4)6(AsO3)8(CO3)2Cl4F3(OH)2 |
| 9.FB. | Steudelite | Na3(K17Ca7)Ca4(Al24Si24O96)(SO3)6F6 · 4H2O |
| 9.FB. | Wenlanzhangite-(Y) | Y2V3+2V4+2(SiO4)2O4(OH)4 |
| 9.FB. | Slyudyankaite | Na28Ca4(Si24Al24O96)(SO4)6(S6)1/3(CO2) · 2H2O |
| 9.FB. | Bolotinaite | (Na7◻)(Al6Si6O24)F · 4H2O |
| 9.FB. | Sapozhnikovite | Na8(Al6Si6O24)(HS)2 |
| 9.FB. | Betzite | Na6Ca2(Al6Si6O24)Cl4 |
| 9.FB.05 | Quadridavyne | (Na,K)6Ca2(Al6Si6O24)Cl4 |
| 9.FB.05 | Sulfhydrylbystrite | Na5K2Ca[Al6Si6O24](S5)2(SH) |
| 9.FB.05 | Marinellite | (Na,K)42Ca6(Al6Si6O24)6(SO4)8Cl2 · 3H2O |
| 9.FB.05 | Afghanite | (Na,K)22Ca10(Si24Al24O96)(SO4)6Cl6 |
| 9.FB.05 | Bystrite | (Na,K)7Ca(Al6Si6O24)(S5)Cl |
| 9.FB.05 | Franzinite | (Na,K)6Ca2(Al6Si6O24)(SO4)2 · 0.5H2O |
| 9.FB.05 | Kyanoxalite | Na7(Al6-xSi6+xO24)(C2O4)0.5+x · 5H2O (0 < x < 0.5) |
| 9.FB.05 | Vishnevite | (Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O |
| 9.FB.05 | Farneseite | (Na,Ca,K)56(Al6Si6O24)7(SO4)12 · 6H2O |
| 9.FB.05 | Alloriite | (Na,Ca,K)26Ca4(Al6Si6O24)4(SO4)6Cl6 |
| 9.FB.05 | Liottite | (Na,K)16Ca8(Al6Si6O24)3(SO4)5Cl4 |
| 9.FB.05 | Depmeierite | Na8(Al6Si6O24)(PO4,CO3)1-x · 3H2O (x<0.5) |
| 9.FB.05 | Biachellaite | (Na,Ca,K)8(Al6Si6O24)(SO4)2(OH)0.5 · H2O |
| 9.FB.05 | Cancrinite | (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O |
| 9.FB.05 | Cancrisilite | Na7(Al5Si7O24)(CO3) · 3H2O |
| 9.FB.05 | Fantappièite | [Na82.5Ca33K16.5](Si99Al99O396)(SO4)33 · 4H2O |
| 9.FB.05 | Carbobystrite | Na8(Al6Si6O24)(CO3) · 3.5H2O |
| 9.FB.05 | Microsommite | Na4K2Ca2(Al6Si6O24)(SO4)Cl2 |
| 9.FB.05 | Pitiglianoite | Na6K2(Al6Si6O24)(SO4) · 2H2O |
| 9.FB.05 | Tounkite | (Na,Ca,K)8(Si6Al6)O24(SO4)2Cl · 0.5H2O |
| 9.FB.05 | Balliranoite | (Na,K)6Ca2(Si6Al6O24)Cl2(CO3) |
| 9.FB.05 | Giuseppettite | (Na,K,Ca)7-8(Al6Si6O24)(SO4,Cl)1-2 |
| 9.FB.05 | Sacrofanite | (Na61K19Ca32)(Si84Al84O336)(SO4)26Cl2F6 · 2H2O |
| 9.FB.05 | Kircherite | Na5Ca2K(Al6Si6O24)(SO4)2 · 0.33H2O |
| 9.FB.05 | Davyne | (Na,K)6Ca2(Al6Si6O24)(Cl2,SO4)2 |
| 9.FB.10 | Haüyne | Na3Ca(Si3Al3)O12(SO4) |
| 9.FB.10 | Lazurite | Na7Ca(Al6Si6O24)(SO4)(S3) · H2O |
| 9.FB.10 | Danalite | Be3Fe2+4(SiO4)3S |
| 9.FB.10 | Helvine | Be3Mn2+4(SiO4)3S |
| 9.FB.10 | Kamaishilite | Ca2(Al2SiO6)(OH)2 |
| 9.FB.10 | Sodalite | Na4(Si3Al3)O12Cl |
| 9.FB.10 | Nosean | Na8(Al6Si6O24)(SO4) · H2O |
| 9.FB.10 | Genthelvite | Be3Zn4(SiO4)3S |
| 9.FB.10 | Bicchulite | Ca2(Al2SiO6)(OH)2 |
| 9.FB.10 | Tsaregorodtsevite | (N(CH3)4)(AlSi5O12) |
| 9.FB.10 | Vladimirivanovite | Na6Ca2(Al6Si6O24)(SO4,S3,S2,Cl)2 · H2O |
| 9.FB.10 | Tugtupite | (BeAlSi)Na4(SiO4)3Cl |
| 9.FB.15 | Marialite | Na4Al3Si9O24Cl |
| 9.FB.15 | Meionite | Ca4Al6Si6O24CO3 |
| 9.FB.15 | Silvialite | (Ca,Na)4(Al6Si6O24)(SO4,CO3) |
Fluorescence of Hydroxycancrinite
Not fluorescent.
Other Information
Notes:
Dissolves easily at room temperature in HCl, HNO3, and H2SO4, with slight effervescence.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Hydroxycancrinite
mindat.org URL:
https://www.mindat.org/min-1990.html
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References for Hydroxycancrinite
Reference List:
Khomyakov, A. P., Nadezhina, T. N., Rastsevtaeva, R. K., Pobedimskaya, E. A. (1992) Hydroxycancrinite Na8[Al6Si6O24](OH)2·2H2O: a new mineral. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva, 121 (1) 100-105
Jambor, John L., Vanko, David A. (1993) New Mineral Names. American Mineralogist, 78 (11-12) 1314-1319
Pekov, I. V., Olysych, L. V., Chukanov, N. V., Zubkova, N. V., Pushcharovsky, D. Y., Van, K. V., Giester, G., Tillmanns, E. (2011) Crystal chemistry of cancrinite-group minerals with an AB-type framework: A review and new data. I. Chemical and structural variations. The Canadian Mineralogist, 49 (5) 1129-1150 doi:10.3749/canmin.49.5.1129
Localities for Hydroxycancrinite
Showing 2 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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).
All localities listed without proper references should be considered as questionable.
Russia | |
| Pekov (2000) +1 other reference |
| Khomyakov et al. (1992) +2 other references |
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Umbozero North quarry, Alluaiv Mountain, Lovozersky District, Murmansk Oblast, Russia