Calciohilairite
A valid IMA mineral species
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About Calciohilairite
Formula:
CaZr[SiO3]3 · 3H2O
Colour:
White to pale blue
Lustre:
Vitreous
Hardness:
4
Specific Gravity:
2.68
Crystal System:
Trigonal
Member of:
Name:
For its chemical composition and relationship to hilairite
Unique Identifiers
Mindat ID:
831
Long-form identifier:
mindat:1:1:831:8
GUID
(UUID V4):
(UUID V4):
b75e196c-e676-476a-8efe-249dc6cfb598
IMA Classification of Calciohilairite
Approved
IMA Formula:
CaZrSi3O9 · 3H2O
First published:
1988
Classification of Calciohilairite
9.DM.10
9 : SILICATES (Germanates)
D : Inosilicates
M : Inosilicates with 6-periodic single chains
9 : SILICATES (Germanates)
D : Inosilicates
M : Inosilicates with 6-periodic single chains
59.2.3.2
59 : CYCLOSILICATES Three-Membered Rings
2 : Three-Membered Rings, hydrated
59 : CYCLOSILICATES Three-Membered Rings
2 : Three-Membered Rings, hydrated
14.10.21
14 : Silicates not Containing Aluminum
10 : Silicates of Zr or Hf
14 : Silicates not Containing Aluminum
10 : Silicates of Zr or Hf
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Chlr | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Calciohilairite
Vitreous
Transparency:
Translucent
Colour:
White to pale blue
Hardness:
4 on Mohs scale
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
2.68(2) g/cm3 (Measured)
Comment:
Floatation
Optical Data of Calciohilairite
Type:
Uniaxial (-)
RI values:
nω = 1.622(1) nε = 1.619(1)
Max Birefringence:
δ = 0.003
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Chemistry of Calciohilairite
Mindat Formula:
CaZr[SiO3]3 · 3H2O
Common Impurities:
Na,Cu,Al,Fe,Ti
Crystallography of Calciohilairite
Crystal System:
Trigonal
Class (H-M):
3 2 - Trapezohedral
Space Group:
R3 2
Cell Parameters:
a = 20.870(4) Å, c = 16.002(4) Å
Ratio:
a:c = 1 : 0.767
Unit Cell V:
6,036.01 Ă
Âł (Calculated from Unit Cell)
Z:
24
Morphology:
Two trigonal prisms {11-20}, {2-1-10} and two rhombohedrons {10-12} and {00-12}.
Twinning:
None observed
Crystal Structure
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2x2x2 | 3x3x3 | 4x4x4
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0012381 | Calciohilairite | Pushcharovsky D Y, Pekov I V, Pasero M, Gobechiya E R, Merlino S, Zubkova N V (2002) Crystal structure of cation-deficient calciohilairite and possible mechanisms of decationization in mixed-framework minerals Crystallography Reports 47 748-752 | 2002 | Lovozero massif, Kola Peninsula, Russia | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
5.231 Ă | (100) |
3.013 Ă | (30) |
3.137 Ă | (20) |
5.993 Ă | (12) |
2.607 Ă | (9) |
2.900 Ă | (7) |
3.197 Ă | (6) |
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 Calciohilairite
General Appearance of Type Material:
White to pale blue unaltered and altered crystals, to 2 mm.
Place of Conservation of Type Material:
National Museum of Natural History, Smithsonian Institution, Washington, D.C. (NMNH no. 161901 and 162182).
Russell C. Boggs collection (no. T990 to T996).
Russell C. Boggs collection (no. T990 to T996).
Geological Setting of Type Material:
Miarolitic cavities in peralkaline granite.
Associated Minerals at Type Locality:
Reference:
Boggs, R.C. (1988) Calciohilairite: CaZrSi3O9âą3H2O The calcium analogue of hilairite from the Golden Horn batholith, Northern Cascades, Washington. American Mineralogist: 73: 1191-1194.
Synonyms of Calciohilairite
Other Language Names for Calciohilairite
Relationship of Calciohilairite to other Species
Member of:
Other Members of this group:
Hilairite | Na2Zr[SiO3]3 · 3H2O | Trig. 3 2 : R3 2 |
Komkovite | BaZr[Si3O9] · 3H2O | Trig. 3 2 : R3 2 |
Pyatenkoite-(Y) | Na5YTi[SiO3]6 · 6H2O | Trig. 3 2 : R3 2 |
Sazykinaite-(Y) | Na5YZr[SiO3]6 · 6H2O | Trig. 3 2 : R3 2 |
Common Associates
Associated Minerals Based on Photo Data:
13 photos of Calciohilairite associated with Kuzmenkoite-Mn | K2Mn2+(Ti,Nb)4(Si4O12)2(OH,O)4 · 5-6H2O |
6 photos of Calciohilairite associated with Chamosite | (Fe2+)5Al(Si,Al)4O10(OH,O)8 |
5 photos of Calciohilairite associated with Quartz | SiO2 |
3 photos of Calciohilairite associated with Albite | Na(AlSi3O8) |
3 photos of Calciohilairite associated with Microcline | K(AlSi3O8) |
2 photos of Calciohilairite associated with Annite | KFe2+3(AlSi3O10)(OH)2 |
1 photo of Calciohilairite associated with Zircon | Zr(SiO4) |
1 photo of Calciohilairite associated with Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
1 photo of Calciohilairite associated with Labuntsovite-Mn | Na4K4(Ba,K)2Mn2+(Ti,Nb)8(Si4O12)4(O,OH)8 · 10-12H2O |
Related Minerals - Strunz-mindat Grouping
9.DM. | Kesebolite-(Ce) | CeCa2Mn(AsO4)(SiO3)3 |
9.DM. | Plumbogaidonnayite | PbZrSi3O9 · 2H2O |
9.DM.05 | Stokesite | CaSn[Si3O9] · 2H2O |
9.DM.10 | Hilairite | Na2Zr[SiO3]3 · 3H2O |
9.DM.10 | Komkovite | BaZr[Si3O9] · 3H2O |
9.DM.10 | Sazykinaite-(Y) | Na5YZr[SiO3]6 · 6H2O |
9.DM.10 | Pyatenkoite-(Y) | Na5YTi[SiO3]6 · 6H2O |
9.DM.15 | Gaidonnayite | Na2Zr(Si3O9) · 2H2O |
9.DM.15 | Georgechaoite | NaKZr[Si3O9] · 2H2O |
9.DM.20 | Chkalovite | Na2BeSi2O6 |
9.DM.25 | Vlasovite | Na2ZrSi4O11 |
9.DM.30 | Revdite | Na16Si16O27(OH)26 · 28H2O |
9.DM.35 | Scheuchzerite | Na(Mn,Mg,Zn)9[VSi9O28(OH)](OH)3 |
9.DM.40 | Hydroterskite | Na2ZrSi6O12(OH)6 |
9.DM.40 | Terskite | Na4ZrSi6O16 · 2H2O |
Fluorescence of Calciohilairite
Not fluorescent
Other Information
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 Calciohilairite
mindat.org URL:
https://www.mindat.org/min-831.html
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References for Calciohilairite
Reference List:
Salvi, Stefano, Williams-Jones, Anthony E. (1995) Zirconosilicate phase relations in the Strange Lake (Lac Brisson) Pluton, Quebec-Labrador, Canada. American Mineralogist, 80 (9) 1031-1040 doi:10.2138/am-1995-9-1019
Localities for Calciohilairite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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).
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 (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Canada | |
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Birkett, T. C., Miller, R. R., Roberts, A. C., Mariano, A. N. (1992) Zirconium bearing minerals from the Strange Lake intrusive complex, Quebec Labrador. The Canadian Mineralogist, 30 (1) 191-205 | |
Norway | |
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Portugal | |
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Russia | |
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USA | |
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Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada