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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.

"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.

Classification of Scapolite

Crystallography of Scapolite

Crystal System:

Crystallographic forms of Scapolite

Crystal Atlas:
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Scapolite no.30 - Goldschmidt (1913-1926)
Scapolite no.32 - Goldschmidt (1913-1926)
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Edge Lines | Miller Indicies | Axes

Opaque | Translucent | Transparent

Along a-axis | Along b-axis | Along c-axis | Start rotation | Stop rotation

Relationship of Scapolite to other Species

Member of:
Other Members of Group:

Other Names for Scapolite

Name in Other Languages:

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.

Scapolite in petrology

An essential component of (items highlighted in red)
Common component of (items highlighted in red)

References for Scapolite

Reference List:
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 seapolite. Can Mineral., 17, 53-61.

Neues Jahrbuch für Mineralogie, Abhandlungen (1984): 149, 309.

Pan, Y., Fleet, M.E., and Ray, G.E. (1994a) 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.

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.

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.

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 Scapolite URL:
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Localities for Scapolite

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