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Ca2Be(OH)2Al2Si4O13 · 2.5H2O
White, pale yellow
Crystal System:
Member of:
Named after Aldo G. Roggiani, Italian science teacher who found the first specimen.
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Classification of RoggianiteHide


9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
B : Chains of single connected 4-membered rings

1 : Zeolite group - True zeolites

16 : Silicates Containing Aluminum and other Metals
10 : Aluminosilicates of Ca and alkalis

Physical Properties of RoggianiteHide

White, pale yellow

Optical Data of RoggianiteHide

Uniaxial (+)
RI values:
nω = 1.527 nε = 1.535
Max Birefringence:
δ = 0.008
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of RoggianiteHide

Ca2Be(OH)2Al2Si4O13 · 2.5H2O
IMA Formula:
Ca2BeAl2Si4O13(OH)2 · nH2O (n < 2.5)
Common Impurities:

Crystallography of RoggianiteHide

Crystal System:
Cell Parameters:
a = 18.33 Å, c = 9.16 Å
a:c = 1 : 0.5
Unit Cell V:
3,077.66 ų (Calculated from Unit Cell)

Type Occurrence of RoggianiteHide

Synonyms of RoggianiteHide

Other Language Names for RoggianiteHide

Relationship of Roggianite to other SpeciesHide

Member of:
Other Members of this group:
AlflarseniteNaCa2Be3Si4O13(OH) · 2H2OMon. 2 : P21
AmiciteK2Na2Al4Si4O16 · 5H2OMon. 2
AnalcimeNa(AlSi2O6) · H2OTric.
Barrerite(Na,K,Ca0.5)2[Al2Si7O18] · 7H2OOrth. mmm (2/m 2/m 2/m)
Bellbergite(K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al3Si3O12]6 · 30H2OHex.
BikitaiteLiAlSi2O6 · H2OTric. 1 : P1
BoggsiteCa8Na3(Si,Al)96O192 · 70H2OOrth. mmm (2/m 2/m 2/m) : Imma
Brewsterite-Ba(Ba,Sr)[Al2Si6O16] · 5H2OMon. 2/m : P21/m
Brewsterite-Sr(Sr,Ba,Ca)[Al2Si6O16] · 5H2O
Chabazite-Levyne SubgroupA subgroup of the Zeolite Group.
ChiavenniteCaMnBe2Si5O13(OH)2 · 2H2OMon. 2/m : P21/b
ClinoptiloliteNote on the distinguishing differences between clinoptilolite and heulandite (hhttp://rruff.
CowlesiteCaAl2Si3O10 · 6H2OOrth.
Dachiardite-Ca(Ca,Na2,K2)5Al10Si38O96 · 25H2OMon.
Dachiardite-Na(Na2,Ca,K2)5Al10Si38O96 · 25H2OMon.
DirenzoiteNaK6MgCa2(Al13Si47O120) · 36H2OOrth. mmm (2/m 2/m 2/m) : Pmmn
EdingtoniteBa[Al2Si3O10] · 4H2O
EpistilbiteCaAl2Si6O16 · 5H2OMon.
ErioniteThis name now refers to a group of related minerals.
Faujasite SubgroupA subgroup of the Zeolite Group.
FerrieriteZeolite Group.
FerrochiavenniteCa1-2Fe[(Si,Al,Be)5Be2O13(OH)2] · 2H2OMon. 2/m : P21/b
Flörkeite(K3Ca2Na)[Al8Si8O32] · 12H2OTric. 1 : P1
Garronite-CaNa2Ca5Al12Si20O64 · 27H2OTet. 4 2m : I4m2
GaultiteNa4Zn2Si7O18 · 5H2OOrth. mm2 : Fdd2
Gismondine-BaBa2Al4Si4O16 · 4-6H2O
Gismondine-CaCaAl2Si2O8 · 4H2O
GmeliniteIn 1997, gmelinite was split into Gmelinite-Ca, Gmelinite-Na and Gmelinite-K.
GobbinsiteNa5(Si11Al5)O32 · 11H2OOrth.
GoosecreekiteCa[Al2Si6O16] · 5H2OMon.
GottardiiteNa3Mg3Ca5Al19Si117O272 · 93H2OOrth.
Harmotome(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] · 12H2OMon. 2/m : P21/m
HeulanditeNote on the distinguishing differences between heulandite and clinoptilolite (http://rruff.
KirchhoffiteCs(BSi2O6)Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
LaumontiteCaAl2Si4O12 · 4H2OMon. 2/m : B2/m
LovdariteK2Na6Be4Si14O36 · 9H2OOrth. mm2
MaricopaitePb7Ca2(Si,Al)48O100 · 32H2OOrth.
Mazzite-Mg(Mg,K,Ca)5(Si26Al10)O72 · 28H2OHex.
Mazzite-NaNa8[Al4Si14O36]2 · 30H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
Merlinoite(K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2OOrth.
Montesommaite(K,Na)9Al9Si23O64 · 10H2OOrth.
Mordenite(Na2,Ca,K2)Al2Si10O24 · 7H2OOrth.
MutinaiteNa3Ca4Si85Al11O192 · 60H2OOrth.
NabesiteNa2BeSi4O10 · 4H2OOrth. 2 2 2 : P21 21 21
Natrolite SubgroupA subgroup of the Zeolite Group.
OffretiteKCaMg(Si13Al5)O36 · 15H2OHex. 6 m2 : P6m2
PahasapaiteLi8(Ca,Li,K)10.5Be24(PO4)24 · 38H2OIso. 2 3 : I2 3
ParthéiteCa2(Si4Al4) O15 (OH)2•4H2OMon. 2/m : B2/b
Paulingite-Ca(Ca,K,Na,Ba,◻)10 (Si, Al)42O84•34H2OIso.
Paulingite-K(K2,Ca,Na2,Ba)5[Al10Si35O90] · 45H2OIso.
Paulingite-Na(Na2,K2,Ca,Ba)5[Al10Si35O90] · 45H2OIso.
PerlialiteK9Na(Ca,Sr)[Al2Si4O12]6 · 15H2OHex.
PhillipsiteZeolite Group.
Pollucite(Cs,Na)2(Al2Si4O12) · 2H2OIso. m3m (4/m 3 2/m) : Ia3d
StelleriteCa4(Si28Al8)O72 · 28H2OOrth. mmm (2/m 2/m 2/m) : Fmmm
Stilbite-CaNaCa4[Al9Si27O72] · nH2OMon. 2/m : B2/m
Stilbite-Na(Na,Ca,K)6-7[Al8Si28O72] · nH2OMon. 2/m : B2/m
Terranovaite(Na,Ca)8(Si68Al12)O160 · 29H2OOrth.
Thomsonite-CaNaCa2[Al5Si5O20] · 6H2OOrth. mmm (2/m 2/m 2/m)
Thomsonite-SrNa(Sr,Ca)2[Al5Si5O20] · 7H2OOrth. mmm (2/m 2/m 2/m)
Tschernichite(Ca,Na2)[Al2Si4O12] · 4-8H2OTet. 4/mmm (4/m 2/m 2/m) : P4/mmm
TschörtneriteCa4(Ca,Sr,K,Ba)3Cu3[(OH)2|Al3Si3O12]4 · nH2OIso. m3m (4/m 3 2/m) : Fm3m
WairakiteCa(Al2Si4O12) · 2H2OMon. 2/m
WeinebeneiteCaBe3(PO4)2(OH)2 · 4H2OMon.
Wenkite(Ba,K)4(Ca,Na)6[(SO4)3|(Si,Al)20O39(OH)2] · 0.5H2OHex.
WillhendersoniteKCa[Al3Si3O12] · 5H2OTric.
YugawaraliteCaAl2Si6O16 · 4H2OMon.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Albite3 photos of Roggianite associated with Albite on
Hydroxylapatite1 photo of Roggianite associated with Hydroxylapatite on

Related Minerals - Nickel-Strunz GroupingHide

9.GB.05AnalcimeNa(AlSi2O6) · H2OTric.
9.GB.05LithositeK6Al4Si8O25 · 2H2OMon.
9.GB.05LeuciteK(AlSi2O6)Tet. 4/m : I41/a
9.GB.05Pollucite(Cs,Na)2(Al2Si4O12) · 2H2OIso. m3m (4/m 3 2/m) : Ia3d
9.GB.05WairakiteCa(Al2Si4O12) · 2H2OMon. 2/m
9.GB.05KirchhoffiteCs(BSi2O6)Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
9.GB.10LaumontiteCaAl2Si4O12 · 4H2OMon. 2/m : B2/m
9.GB.15YugawaraliteCaAl2Si6O16 · 4H2OMon.
9.GB.25GoosecreekiteCa[Al2Si6O16] · 5H2OMon.
9.GB.30Montesommaite(K,Na)9Al9Si23O64 · 10H2OOrth.
9.GB.35ParthéiteCa2(Si4Al4) O15 (OH)2•4H2OMon. 2/m : B2/b

Related Minerals - Dana Grouping (8th Ed.)Hide · 4H2OMon.[Al2Si6O16] · 5H2OMon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

16.10.4Thomsonite-CaNaCa2[Al5Si5O20] · 6H2OOrth. mmm (2/m 2/m 2/m)
16.10.5Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2OOrth.
16.10.6MesoliteNa2Ca2Si9Al6O30 · 8H2OOrth. mm2 : Fdd2
16.10.8Garronite-CaNa2Ca5Al12Si20O64 · 27H2OTet. 4 2m : I4m2
16.10.9BoggsiteCa8Na3(Si,Al)96O192 · 70H2OOrth. mmm (2/m 2/m 2/m) : Imma
16.10.10Herschelite(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2OTrig.
16.10.12Fedorite(Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2OTric. 1 : P1
16.10.13WillhendersoniteKCa[Al3Si3O12] · 5H2OTric.
16.10.14Barrerite(Na,K,Ca0.5)2[Al2Si7O18] · 7H2OOrth. mmm (2/m 2/m 2/m)
16.10.15Mordenite(Na2,Ca,K2)Al2Si10O24 · 7H2OOrth.
16.10.16Reyerite(Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2OTrig.
16.10.20GobbinsiteNa5(Si11Al5)O32 · 11H2OOrth.
16.10.23OffretiteKCaMg(Si13Al5)O36 · 15H2OHex. 6 m2 : P6m2
16.10.24PerlialiteK9Na(Ca,Sr)[Al2Si4O12]6 · 15H2OHex.
16.10.27Sodium Dachiardite(Na2,Ca,K2)4-5Al8Si40O96 · 26H2O
16.10.28Mazzite-Mg(Mg,K,Ca)5(Si26Al10)O72 · 28H2OHex.

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 RoggianiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Passaglia E. (1969): Roggianite, a new silicate mineral. Clay Minerals, 8, 107-111.
Gard, J.A. (1969): An electron microscope and diffraction study of roggianite. Clay Minerals, 8, 112-113.
Passaglia, E. & Vezzalini, G. (1969): Roggianite: revised chemical formula and zeolitic properties. Mineralogical Magazine, 52, 201-206.
Gard, J.A. (1970): Studio per microscopia elettronica e per difrattometria della roggianite. Ceramica Informazione, 45.
Laghi, G.F. (1970): Le rocce che accompagnano la pegmatite a roggianite della Val Vigezzo (Novara).
L’Illustrazione Ossolana, 12, 97-100.
Boscardin, M. (1972): Roggianite un nuovo minerale. Notiziario del Gruppo Mineralogico Lombardo, 1972, 7.
Vezzalini, G. & Mattioli, V. (1979): Secondo ritrovamento della roggianite. Periodico di Mineralogia, 48, 15-20.
Galli, E. (1980): The crystal structure of roggianite, a zeolite-like silicate. Proceedings of the 5th International Conference Zeolites, Heyden, London, 205-213.
Passaglia, E. (1980): Nuovi silicati descritti dai ricercatori dell'Istituto di Mineralogia dell'Università di Modena: roggianite. Rivista Mineralogica Italiana, 1980, 16-19.
Galli, E. (1983): The crystal structure of roggianite, a zeolite-like silicate. Mineralnotes, 1983, 1-5.
Mattioli, V. (1987): Notizie sulla roggianite. Rivista Mineralogica Italiana, 1987, 93-95.
Passaglia, E. & Vezzalini, G. (1988): Roggianite: revised chemical formula and zeollite properties. Mineralogical Magazine, 52, 201-206.
Giuseppetti, G., Mazzi, F., Tadini, C. & Galli, E. (1991): The revised crystal structure of roggianite: Ca2[Be(OH)2Al2Si4O13]<2.5H2O. Neues Jahrbuch für Mineralogie, Monatschefte (1991): 307-314.

Internet Links for RoggianiteHide

Localities for RoggianiteHide

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 ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - 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.
Italy (TL)
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Ossola Valley
        • Vigezzo Valley
          • Druogno
            • Orcesco
Mattioli V. (1987) - Novità mineralogiche in Val d'Ossola - Rivista Mineralogica Italiana, Milano, fasc. 1, pp.1-11
          • Trontano
            • Pizzo Marcio
Mattioli, V. (1979 a): I minerali di Pizzo Marcio in Valle Vigezzo. Riv. Mineral. Ital., 3 [1, serie 2], 2 (2-1979), 30-36; Mattioli, V. (1979 b): Minerali Ossolani. Ed. Arti Grafiche Medesi, Milano, 268 pp.; Vezzalini, G., Mattioli, V. (1979): Secondo ritrovamento della roggianite. Per. Mineral., 48, 15-20; Mattioli, V. (1987 b): Notizie sulla roggianite. Riv. Mineral. Ital., 11, 2 (2-1987), 93-95; Giuseppetti, G., Mazzi, F., Tadini, C., and Galli, E. 1991. The revised crystal structure of roggianite: Ca2[Be(OH)2Al2Si4O13]<2.5H2O. Neues Jahrb, Mineral., Monatsh., 1991, 307-314; Appiani, R., Cini, V., Gentile, P., Mattioli, V., Preite, D., Vignola, P. (1995): Val Vigezzo - I minerali delle albititi. Ed. Linea Due S.r.l., Marnate (Varese), 90 pp.; Guastoni, A., Diella, V., Pezzotta, F., Demartin, F. (2007): Vigezzite and associated Nb-Ta oxides of emerald pegmatitic deposits of Vigezzo Valley (Western Alps, Italy). Crystallization Processes in Granitic Pegmatites - International Meeting. Cavoli, Elba Island, Italy, 23rd-29th May 2005. Abstracts;; Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" di Alba, Ed., Alba, 607 pp.; Guastoni, A. (2012): LCT (lithium, cesium, tantalum) and NYF (niobium, yttrium, fluorine) pegmatites in the Central Alps. Proxies of exhumation history of the Alpine nappe stack in the Lepontine Dome. Ph.D. Thesis. University of Padova, Dept. of Geosciences, 159 pp.; Boscardin, M., Mattioli, V., Rocchetti, I. (2013): Minerali della Valle Vigezzo. Litotipografia Alcione, Lavis (Trento), 229 pp.
Appiani, R., Cini, V., Gentile, P., Mattioli, V., Preite, D., Vignola, P. (1995): Val Vigezzo - I minerali delle albititi. Ed. Linea Due S.r.l., Marnate (Varese), 90 pp.; Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" di Alba, Ed., Alba, 607 pp.; Boscardin, M., Mattioli, V., Rocchetti, I. (2013): Minerali della Valle Vigezzo. Litotipografia Alcione, Lavis (Trento), 229 pp.
Heys Mineral Index 3rd ed.
    • Middle Urals
      • Sverdlovskaya Oblast'
        • Ekaterinburg (Sverdlovsk)
          • Malyshevo
            • Izumrudnye Kopi area
              • Malyshevskoe deposit (Mariinskoe)
Avdonin V.N., Polenov Yu.A. (2004) Essays on Uralian minerals, - UGGA press, p. 419 (in Rus.).
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