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Stilbite-Na

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About Stilbite-NaHide

Formula:
(Na,Ca,K)6-7[Al8Si28O72] · nH2O
Colour:
White, colourless, red, light yellow, light to dark brown, cream
Lustre:
Vitreous, Pearly
Hardness:
3½ - 4
Specific Gravity:
2.1 - 2.2
Crystal System:
Monoclinic
Name:
Named in 1797 by Jean Claude de la Métherie from Greek στιλβη "stilbein", to glitter of shine, or "stilbe", a mirror, alluding to its pearly or vitreous luster. Originally, but inconsistently called zeolite in 1756 by Axel Cronstedt. Named crystalii ad centrum tendentes in 1758 by Cronstedt. In 1772, Johan Gottschalk Wallerius called this mineral zeolite selenitica lamellaris. Also in 1797, de la Métherie called this mineral zeolite nacrée. Werner (1780) called this mineral strehliger zeolith. Rene Just Haüy (1801) used the term stilbite anamorphique for a mineral now recognized as heulandite. Desmine was introduced in 1818 by Johann Friedrich August Breithaupt. Sphaerostilbite was used in 1832 by François Sulpice Beudant. Additional varietal names and synonyms have been proposed: blättricher zeolit, hypostilbite, puflerite, radiated zeolite, and syhedrite. Chemical suffixes were added by the IMA.
Zeolite Group.

Note: due to the high Na content, the monoclinic C2/m symmetry of stilbite is retained, in contrast to the chemically similar, but Na-free stellerite which is orthorhombic.



Classification of Stilbite-NaHide

Approved
9.GE.10

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
E : Chains of T10O20 Tetrahedra
Dana 7th ed.:
77.1.4.3

Physical Properties of Stilbite-NaHide

Vitreous, Pearly
Transparency:
Transparent, Translucent
Colour:
White, colourless, red, light yellow, light to dark brown, cream
Streak:
White
Hardness:
3½ - 4 on Mohs scale
Cleavage:
Perfect
Perfect on the {010}
Fracture:
Conchoidal
Density:
2.1 - 2.2 g/cm3 (Measured)    2.2 g/cm3 (Calculated)

Optical Data of Stilbite-NaHide

Type:
Biaxial (-)
RI values:
nα = 1.479 - 1.492 nβ = 1.485 - 1.500 nγ = 1.489 - 1.505
2V:
Measured: 22° to 79°, Calculated: 76° to 78°
Max Birefringence:
δ = 0.010 - 0.013
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
weak

Chemical Properties of Stilbite-NaHide

Formula:
(Na,Ca,K)6-7[Al8Si28O72] · nH2O
IMA Formula:
Na9(Si27Al9)O72 · 28H2O

Crystallography of Stilbite-NaHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Cell Parameters:
a = 13.63 Å, b = 18.17 Å, c = 11.31 Å
β = 129.166°
Ratio:
a:b:c = 0.75 : 1 : 0.622
Unit Cell V:
2 ų
Z:
1

Type Occurrence of Stilbite-NaHide

Other Language Names for Stilbite-NaHide

Relationship of Stilbite-Na to other SpeciesHide

Other Members of this group:
Barrerite(Na,K,Ca0.5)2[Al2Si7O18] · 7H2OOrth. mmm (2/m 2/m 2/m)
StelleriteCa4(Si28Al8)O72 · 28H2OOrth. mmm (2/m 2/m 2/m) : Fmmm
Stilbite-CaNaCa4[Al9Si27O72] · nH2OMon. 2/m : B2/m

Common AssociatesHide

Associated Minerals Based on Photo Data:
Heulandite subgroup7 photos of Stilbite-Na associated with Heulandite subgroup on mindat.org.
Fluorapophyllite-(K)6 photos of Stilbite-Na associated with Fluorapophyllite-(K) on mindat.org.
Barrerite1 photo of Stilbite-Na associated with Barrerite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.GE.05Clinoptilolite-CaCa3(Si30Al6)O72·20H2OMon.
9.GE.05Clinoptilolite-KK6(Si30Al6)O72·20H2OMon. 2/m
9.GE.05Clinoptilolite-NaNa6(Si30Al6)O72·20H2OMon. 2/m : B2/m
9.GE.05Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2OMon. 2/m : B2/m
9.GE.05Heulandite-K(K,Ca,Na)5(Si27Al9)O72 · 26H2OMon. 2/m : B2/m
9.GE.05Heulandite-Na(Na,Ca,K)6(Si,Al)36O72 · 22H2OMon. 2/m : B2/m
9.GE.05Heulandite-Sr(Sr,Na,Ca)5(Si27Al9)O72 · 24H2OMon. 2/m : B2/m
9.GE.05Heulandite-Ba(Ba,Ca,K)5(Si27Al9)O72 · 22H2OMon. 2/m : B2/m
9.GE.10Stilbite-CaNaCa4[Al9Si27O72] · nH2OMon. 2/m : B2/m
9.GE.15Barrerite(Na,K,Ca0.5)2[Al2Si7O18] · 7H2OOrth. mmm (2/m 2/m 2/m)
9.GE.15StelleriteCa4(Si28Al8)O72 · 28H2OOrth. mmm (2/m 2/m 2/m) : Fmmm
9.GE.20Brewsterite-Ba(Ba,Sr)[Al2Si6O16] · 5H2OMon. 2/m : P21/m
9.GE.20Brewsterite-Sr(Sr,Ba,Ca)[Al2Si6O16] · 5H2O

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.

References for Stilbite-NaHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Slaughter, M. (1970) Crystal structure of stilbite. American Mineralogist, 55(3-4), 387-397.
Cruciani, G., Arioli, G., Gualtieri, A., Stahl, K., Hanson, J.C. (1997) Dehydration dynamics of stilbite using synchrotron X-ray powder diffraction. American Mineralogist, 82(7-8), 729-739.
Galli, E. (1970) Refinement of the Crystal Structure of Stilbite. Acta Crystallographica: B27: 833-841
Passaglia, E., Galli, E., Leoni, L., Rossi, G. (1978) The crystal chemistry of stilbites and stellerites. Bulletin de Minéralogie, 101, 368-375.
Coombs, D.S. et.al (1998) Recommended nomenclature for zeolite minerals: report of the subcommittee on zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names. Mineralogical Magazine, 62(4), 555.

Internet Links for Stilbite-NaHide

Localities for Stilbite-NaHide

ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Australia
 
  • South Australia
    • Mt Lofty Ranges
      • South Mt Lofty Ranges (Adelaide Hills)
        • Strathalbyn
South Australian Museum collection
  • Victoria
    • Bass Coast Shire
      • Phillip Island
Germany
 
  • Lower Saxony
    • Harz
      • Bad Harzburg
Baumgärtl,U. (2014) Der Diabassteinbruch Huneberg im Oberharz. Der Aufschluss, Jg. 65, Nr. 04, Seite 240-260
India
 
  • Maharashtra
    • Aurangabad District
      • Bidkin
-various added photos - The reference of Muhammed F. Makki & Sami Makki, "Green apophyllite from Bidkin, Aurangabad, India", Mineralogical Record Vol. 39, No. 4 (July - August) 2008 pp 267-273 does not provide clarification as to the variety of Stilbite from here. I don't believe that there is a confirmed analysis of Stlbite-Na from here (Keith Compton).
Italy
 
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Omegna
- Albertini,C. (2000) : Ritrovamenti nel Rio Inferno, Brughiere di Omegna. Prima segnalazione nel granito di Baveno : uranofane-beta - Rivista Mineralogica Italiana, Milano, XXIV, 2, 88-92.
      • Ossola Valley
Tony Nikischer
  • Sardinia
    • Cagliari metropolitan city (Metropolitan City of Cagliari)
      • Pula
Pongiluppi, D. (1974) Ulteriori notizie sulle zeoliti della Sardegna. Rendiconti della Società Italiana di Mineralogia e Petrologia, 30, 2, 1201-1205; Coombs, D.S., Alberti, A., Armbruster, T., Artioli, G., Colella, C., Galli, E., Grice, J.D., Liebau, F., Mandarino, J.A., Minato, H., Nickel, E.H., Passaglia, E., Peacor, D.R., Quartieri, S., Rinaldi, R., Ross, M., Sheppard, R.A., Tillmanns, E., Vezzalini, G. (1997) Recommended nomenclature for zeolite minerals: report of the subcommittee on zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names. Canadian Mineralogist, 35, 6, 1571-1606; Preite, D. (2003) Mineraliensammel im Urlaub: Zeolithfundstellen auf Sardinien. Lapis, 28, 2, 21-30.
Pongiluppi, D. (1974) Ulteriori notizie sulle zeoliti della Sardegna. Rendiconti della Società Italiana di Mineralogia e Petrologia, 30, 2, 1201-1205; Passaglia, E., Galli, E., Leoni, L., Rossi, G. (1978) The crystal chemistry of stilbites and stellerites. Bulletin de Minéralogie, 101, 368-375; Quartieri, S., Vezzalini, G. (1987) Crystal chemistry of stilbites: structure refinements of one normal and four chemically anomalous samples. Zeolites, 7, 163-70; Coombs, D.S., Alberti, A., Armbruster, T., Artioli, G., Colella, C., Galli, E., Grice, J.D., Liebau, F., Mandarino, J.A., Minato, H., Nickel, E.H., Passaglia, E., Peacor, D.R., Quartieri, S., Rinaldi, R., Ross, M., Sheppard, R.A., Tillmanns, E., Vezzalini, G. (1997) Recommended nomenclature for zeolite minerals: report of the subcommittee on zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names. Canadian Mineralogist, 35, 6, 1571-1606; Preite, D. (2003) Mineraliensammel im Urlaub: Zeolithfundstellen auf Sardinien. Lapis, 28, 2, 21-30.
Japan
 
  • Kyushu Region
    • Fukuoka prefecture
      • Munakata
Ueno and Hanada (1982) Koubutsugaku Zasshi, 15, 259-272.
Mexico
 
  • Veracruz
    • Mun. de Tatatila
James McGasson, 2018 on Peter Megaw specimens
    • Mun. Las Vigas de Ramírez (Mun. de Profesor Rafael Ramírez)
Peter Megaw specimens, James McGlasson identifications at University of Arizona
USA
 
  • Alaska
    • Wrangell-Petersburg Borough
      • Kupreanof Island
The Canadian Mineralogist; June 1997; v. 35; no. 3; p. 691-698
  • Pennsylvania
    • Berks Co.
      • Birdsboro
        • Gickerville (Gibralter)
Rocks & Min.: 21:142-143.
    • Montgomery Co.
      • Marlborough Township
        • Perkiomenville
Rocks & Min.: 10:111; 16:136-137; 17:341; 22: 803-804.
  • Utah
    • Tooele Co.
      • Oquirrh Mts
        • Rush Valley District (Stockton District)
UGMS Bull 117 Minerals and Mineral Localities of Utah
  • Washington
    • King Co.
      • Preston
Minerals of Washington, Bart Cannon, 1975
    • Stevens Co.
      • Wellpinit
Cannon, B. (1975): Minerals of Washington, p.53
Mineral and/or Locality  
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