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CaZrSi3O9 · H2O
4½ - 5
In allusion to its composition, with dominant calcium, and its relationship to Catapleiite.
Catapleiite Group. The calcium analogue of Catapleiite.

Classification of Calciocatapleiite

Approved, 'Grandfathered' (first described prior to 1959)

9 : SILICATES (Germanates)
C : Cyclosilicates
A : [Si3O9]6- 3-membered single rings (dreier-Einfachringe), without insular complex anions

59 : CYCLOSILICATES Three-Membered Rings
2 : Three-Membered Rings, hydrated

14 : Silicates not Containing Aluminum
10 : Silicates of Zr or Hf

Physical Properties of Calciocatapleiite

Hardness (Mohs):
4½ - 5

Optical Data of Calciocatapleiite

Uniaxial (+)
RI values:
nω = 1.603 nε = 1.639
Max Birefringence:
δ = 0.036
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of Calciocatapleiite

IMA Formula:
CaZrSi3O9 · H2O
Elements listed in formula:

Type Occurrence of Calciocatapleiite

Relationship of Calciocatapleiite to other Species

Forms a series with Catapleiite (see here)
Structurally related to group(s):
9.CA.15CatapleiiteNa2ZrSi3O9 · 2H2O
9.CA.30Bobtraillite(Na,Ca)13Sr11(Zr,Y,Nb)14Si42B6O132(OH)12 · 12H2O
14.10.7GaidonnayiteNa2ZrSi3O9 · 2H2O
14.10.8TerskiteNa4ZrSi6O16 · 2H2O
14.10.9ElpiditeNa2ZrSi6O15 · 3H2O
14.10.10HilairiteNa2ZrSi3O9 · 3H2O
14.10.11PetarasiteNa5Zr2Si6O18(Cl,OH) · 2H2O
14.10.15KostyleviteK2ZrSi3O9 · H2O
14.10.16UmbiteK2ZrSi3O9 · H2O
14.10.17ParaumbiteK3Zr2H(Si3O9)2 · 3H2O
14.10.18GeorgechaoiteKNaZrSi3O9 · 2H2O
14.10.21CalciohilairiteCaZrSi3O9 · 3H2O
14.10.22ArmstrongiteCaZrSi6O15 · 2H2O
14.10.23LemoyniteNa2CaZr2Si10O26 · 5-6H2O
14.10.24CatapleiiteNa2ZrSi3O9 · 2H2O
14.10.28PenkvilksiteNa4Ti2Si8O22 · 4H2O
14.10.31KomkoviteBaZrSi3O9 · 3H2O

Other Names for Calciocatapleiite

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.

References for Calciocatapleiite

Reference List:
Merlino, Stefano , Marco Pasero, Marco Bellezza, Dmitry Yu. Pushcharovsky, Elena R. Gobetchia, Natalia V. Zubkova, and Igor V. Pekov (2004): The crystal structure of calcium catapleiite. Canadian Mineralogist, 42, 1037-1045.

American Mineralogist: 49: 1153.

Internet Links for Calciocatapleiite URL:
Please feel free to link to this page.

Localities for Calciocatapleiite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
  • Northwest Territories
    • Mackenzie District
      • Blachford Lake alkaline complex
SHEARD, E.R., WILLIAMS-JONES, A.E., HEILIGMANN, M., PEDERSON, C. AND TRUEMAN, D.L. (2012) Controls on the concentration of zirconium, niobium, and the rare earth elements in the Thor Lake rare metal deposit, Northwest Territories, Canada. Economic Geology, 107(1), 81-104.
D. Robert Pinckston, Dorian G. W. Smith (1995) Mineralogy of the Lake zone, Thor Lake rare-metals deposit, N.W.T., Canada. Canadian Journal of Earth Sciences, 32:516-532
  • Québec & Newfoundland and Labrador
Miller (1996), Canadian Mineralogist: 34:349-371; Salvi & Williams-Jones (1995); Am.Min.: 80:1031-1040; Miller (1990), Newfoundland Dept. of Mines & Energy Geol. Sur. Report 90-1: 171-182.; Birkett, T.C., Miller, R.R., Roberts, A.C., And Mariano, A.N. (1992) Zirconium bearing minerals from the Strange Lake intrusive complex, Quebec Labrador. Canadian Mineralogist, 30, 191-205.; BIRKETT, T.C., MILLER, R.R., ROBERTS, A.C., & MARIANO, A.N. (1992) Zirconium bearing minerals from the Strange Lake intrusive complex, Quebec Labrador. Canadian Mineralogist, 30, 191-205.
  • Baranya Co.
    • Mecsek Mts
      • Hosszúhetény
collector: Csaba Papp, WDS: Viera Kollárová
  • Hovd Aimag (Khovd Aimag)
    • Altai Mts
P.M. Kartashov data
Russia (TL)
  • Eastern-Siberian Region
    • Prebaikalia (Pribaikal'e)
      • Buriatia (Buryatia)
        • Mama River Basin
          • Maigunda River
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
        • Afrikanda
Chakhmouradian A.R., Zaitsev A.N. (2002) Calcite–Amphibole–Clinopyroxene rock from the Afrikanda complex, Kola peninsula, Russia: mineralogy and a possible link to carbonatites. III. Silicate minerals. - Canadian Mineralogist, Vol.40, pp. 1347-1374.
  • Småland
    • Jönköping
      • Gränna
Thulin, H. (1996): Norra Kärr. Litiofilen 13: 17-51; Thulin, H. (2000): Norra Kärr-Några nya fynd och undersökningar. Litiofilen, 17 (2): 25-45
Thulin, H. (1996): Norra Kärr. Litiofilen 13: 17-51; Thulin, H. (2000): Norra Kärr-Några nya fynd och undersökningar. Litiofilen, 17 (2): 25-45
  • Montana
    • Meagher Co.; Chakhmouradian A.R., Mitchell R.H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114.
  • Washington
    • Okanogan Co.
      • Golden Horn Batholith
Micro Probe Volume VI Number 8
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