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Crystal System:
Member of:
Named in 1800 by José Bonifácio de Andrada e Silva from the Greek ζκαποζ meaning "a shaft" in allusion to the long prismatic habit of the crystals.
Series Formula:
Na4Al3Si9O24Cl to Ca4Al6Si6O24CO3
A series between Marialite and Meionite

This term generally refers to just the marialite-meionite series, not the full scapolite group, so excludes the sulphate-bearing group member silvialite. Used as a generic term when the exact chemical composition in the solid solution series has not been determined.

The meionite component increases with metamorphic grade, and typical samples of high-pressure scapolite are Ca-rich (Teertstra and Sherriff, 1996).

"Wernerite" is an intermediate member of the marialite-meionite series, which may be deserving of species status (see Dana, 8th Ed.).

May be altered into pinite.

Visit for gemological information about Scapolite.

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Pronounciation of ScapoliteHide

PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Crystallography of ScapoliteHide

Crystal System:

Crystallographic forms of ScapoliteHide

Crystal Atlas:
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Scapolite no.30 - Goldschmidt (1913-1926)
Scapolite no.32 - Goldschmidt (1913-1926)
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Synonyms of ScapoliteHide

Other Language Names for ScapoliteHide

Varieties of ScapoliteHide

PetschiteA trade name for purple scapolite from Tanzania.
WerneriteScapolite Group. Obsolete name for an intermediate member which covers the Meionite:Marialite range from Me:Ma 3:1 to 1:2.

Relationship of Scapolite to other SpeciesHide

Member of:
Other Members of this group:
MarialiteNa4Al3Si9O24ClTet. 4/m : I4/m
MeioniteCa4Al6Si6O24CO3Tet. 4/m : I4/m
Silvialite(Ca,Na)4(Al6Si6O24)(SO4,CO3)Tet. 4/m : I4/m

Common AssociatesHide

Associated Minerals Based on Photo Data:
Calcite54 photos of Scapolite associated with Calcite on
Diopside36 photos of Scapolite associated with Diopside on
Augite24 photos of Scapolite associated with Augite on
Phlogopite16 photos of Scapolite associated with Phlogopite on
Titanite14 photos of Scapolite associated with Titanite on
Albite14 photos of Scapolite associated with Albite on
Biotite13 photos of Scapolite associated with Biotite on
Tremolite12 photos of Scapolite associated with Tremolite on
Vesuvianite10 photos of Scapolite associated with Vesuvianite on
Pyroxene Group9 photos of Scapolite associated with Pyroxene Group on

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.

Scapolite in petrologyHide

References for ScapoliteHide

Reference List:
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Zeitschrift für Kristallographie (1931): 81: 110.
C. O. Ingamells and J. Gittins (1967): The stoichiometry of scapolite. Can. Mineral. 9, 214-236.
Levien, L. and Papike, J.J. (1976): Scapolite crystal chemistry: Aluminium-silicon distributions, carbonate group disorder, and thermal expansion. Amer. Mineral., 61, 864-877.
Strunz, H., Wilk, H. (1976): Violetter Skapolith von Edelsteinqualität aus Ostafrika. Aufschluss 27, 389-391 (in German).
Peterson, R.C., Donnay, G. and LePage, Y. (1979): Sulfate disorder in scapolite. Can Mineral., 17, 53-61.
Neues Jahrbuch für Mineralogie, Abhandlungen (1984): 149, 309.
Belokoneva, E. L.; Sokolova, N. V.; Urusov, V. S. (1993): Scapolite: crystal structures of marialite (Ma11) and meiorite (Me88) with space groups as functions of composition. Kristallografiya 38(1), 52-57 (in Russian)
Pan, Y., Fleet, M.E., and Ray, G.E. (1994): Scapolite in two Canadian gold deposits: Nickel Plate, British Columbia and Hemlo, Ontario. Canadian Mineralogist: 32: 825-837.
Teertstra, D.K. and Sherriff, B.L. (1996): Scapolite cell-parameter trends along the solid-solution series. American Mineralogist, 81, 169-180.
Teertstra, D.K. and Sherriff, B.L. (1997): Substitutional mechanisms, compositional trends and the end-member formulae of scapolite. Chemical Geology, 136, 233-260.
Seto, Y., Shimobayashi, N., Miyake, A. & Kitamura, M. (2004): Composition and I4/m - P42/n phase transition in scapolite solid solutions. American Mineralogist 89, 257-265.
Christy, A.G. & Gatedal, K. (2005): Extremely Pb-rich rock-forming silicates including a beryllian scapolite and associated minerals in a skarn from Långban, Värmland, Sweden. Mineralogical Magazine, 69, 995-1018.
Antao, S.M., Hassan, I. (2008) Increase in Al-Si and Na-Ca disorder with temperature in scapolite Me32.9. The Canadian Mineralogist 46, 1577-1591
Sokolova, E., Hawthorne, F.C. (2008): The crystal chemistry of the scapolite-group minerals. I. Crystal structure and long-range order. The Canadian Mineralogist 46, 1527-1554.
Hawthorne, F.C. & Sokolova, E. (2008): The crystal chemistry of the scapolite-group minerals. II. The origin of the I4/m ↹ P42/n phase transition and the nonlinear variations in chemical composition. Canadian Mineralogist 46, 1555-1575.
Anato, S.M. & Hassan, I. (2011): The structures of marialite (Me6) and meionite (Me93) in space groups P42/n and I4/m, and the absence of phase transitions in the scapolite series. Powder Diffraction 26, 119-125.
Antao, S.M. & Hassan, I. (2011): Complete Al-Si order in scapolite Me37.5, ideally Ca3Na5[Al8Si16O48]Cl(CO3), and implications for antiphase domain boundaries (APBs). Canadian Mineralogist, 49, 581-586.

Internet Links for ScapoliteHide

Localities for ScapoliteHide

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 ListShow

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