Jervisite
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About Jervisite
Formula:
NaSc3+Si2O6
Colour:
light green
Hardness:
6
Crystal System:
Monoclinic
Member of:
Name:
Named in 1982 by M. Mellini, S. Merlino, P. Orlandi, and R. Rinaldi in honor of William Paget Jervis (15 November 1832, Belgaum , India - 18 February 1906, Turin, Italy), geologist and director of the Royal Italian Industrial Museum of Turin (Museo Industriale Italiano di Torino).
Classification of Jervisite
Approved
8/F.01-150
9.DA.25
9 : SILICATES (Germanates)
D : Inosilicates
A : Inosilicates with 2-periodic single chains, Si2O6; pyroxene family
9 : SILICATES (Germanates)
D : Inosilicates
A : Inosilicates with 2-periodic single chains, Si2O6; pyroxene family
65.1.3c.6
65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
1 : Single-Width Unbranched Chains, W=1 with chains P=2
65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
1 : Single-Width Unbranched Chains, W=1 with chains P=2
14.8.12
14 : Silicates not Containing Aluminum
8 : Silicates of Group III metals other than Al
14 : Silicates not Containing Aluminum
8 : Silicates of Group III metals other than Al
Physical Properties of Jervisite
Optical Data of Jervisite
Type:
Biaxial (-)
RI values:
nα = 1.683 nβ = 1.715 nγ = 1.724
Max Birefringence:
δ = 0.041

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
medium
Chemical Properties of Jervisite
Formula:
NaSc3+Si2O6
Elements listed:
Common Impurities:
Ti,Al,Mn
Crystallography of Jervisite
Crystal System:
Monoclinic
Cell Parameters:
a = 9.85 Å, b = 9.04 Å, c = 5.31 Å
β = 106.62°
β = 106.62°
Ratio:
a:b:c = 1.09 : 1 : 0.587
Unit Cell V:
453.07 ų (Calculated from Unit Cell)
Type Occurrence of Jervisite
Other Language Names for Jervisite
Relationship of Jervisite to other Species
Member of:
Other Members of this group:
Aegirine | NaFe3+Si2O6 | Mon. 2/m : B2/b |
Aegirine-augite | (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6 | Mon. 2/m : B2/b |
Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 | Mon. 2/m : B2/b |
Clinoenstatite | MgSiO3 | Mon. 2/m : P21/b |
Clinoferrosilite | Fe2+SiO3 | Mon. 2/m : P21/b |
Diopside | CaMgSi2O6 | Mon. 2/m : B2/b |
Esseneite | CaFe3+[AlSiO6] | Mon. 2/m : B2/b |
Hedenbergite | CaFe2+Si2O6 | Mon. 2/m : B2/b |
Jadeite | Na(Al,Fe3+)Si2O6 | Mon. |
Johannsenite | CaMn2+Si2O6 | Mon. 2/m : B2/b |
Kanoite | Mn2+(Mg,Mn2+)Si2O6 | Mon. 2/m : P21/b |
Kosmochlor | NaCrSi2O6 | Mon. |
Kushiroite | CaAl[AlSiO6] | Mon. 2/m : B2/b |
Namansilite | NaMn3+Si2O6 | Mon. |
Natalyite | NaV3+Si2O6 | Mon. |
Omphacite | (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6 | Mon. 2/m |
Petedunnite | Ca(Zn,Mn2+,Mg,Fe2+)Si2O6 | Mon. |
Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 | Mon. 2/m : P21/b |
Spodumene | LiAlSi2O6 | Mon. |
Common Associates
Associated Minerals Based on Photo Data:
Cascandite | 3 photos of Jervisite associated with Cascandite on mindat.org. |
Pumpellyite-(Fe2+) | 1 photo of Jervisite associated with Pumpellyite-(Fe2+) on mindat.org. |
Related Minerals - Nickel-Strunz Grouping
9.DA. | Protoenstatite | Mg2Si2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
9.DA.05 | Donpeacorite | (Mn2+,Mg)Mg[SiO3]2 | Orth. |
9.DA.05 | Enstatite | MgSiO3 | Orth. mmm (2/m 2/m 2/m) : Pbca |
9.DA.05 | Ferrosilite | FeSiO3 | Orth. mmm (2/m 2/m 2/m) : Pbca |
9.DA.10 | Clinoenstatite | MgSiO3 | Mon. 2/m : P21/b |
9.DA.10 | Clinoferrosilite | Fe2+SiO3 | Mon. 2/m : P21/b |
9.DA.10 | Kanoite | Mn2+(Mg,Mn2+)Si2O6 | Mon. 2/m : P21/b |
9.DA.10 | Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 | Mon. 2/m : P21/b |
9.DA.15 | Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 | Mon. 2/m : B2/b |
9.DA.15 | Diopside | CaMgSi2O6 | Mon. 2/m : B2/b |
9.DA.15 | Esseneite | CaFe3+[AlSiO6] | Mon. 2/m : B2/b |
9.DA.15 | Hedenbergite | CaFe2+Si2O6 | Mon. 2/m : B2/b |
9.DA.15 | Johannsenite | CaMn2+Si2O6 | Mon. 2/m : B2/b |
9.DA.15 | Petedunnite | Ca(Zn,Mn2+,Mg,Fe2+)Si2O6 | Mon. |
9.DA.15 | Davisite | CaScAlSiO6 | Mon. 2/m : B2/b |
9.DA.15 | Kushiroite | CaAl[AlSiO6] | Mon. 2/m : B2/b |
9.DA.15 | Grossmanite | CaTi3+ AlSiO6 | Mon. 2/m : B2/b |
9.DA.20 | Aegirine-augite | (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6 | Mon. 2/m : B2/b |
9.DA.20 | Omphacite | (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6 | Mon. 2/m |
9.DA.25 | Aegirine | NaFe3+Si2O6 | Mon. 2/m : B2/b |
9.DA.25 | Jadeite | Na(Al,Fe3+)Si2O6 | Mon. |
9.DA.25 | Kosmochlor | NaCrSi2O6 | Mon. |
9.DA.25 | Namansilite | NaMn3+Si2O6 | Mon. |
9.DA.25 | Natalyite | NaV3+Si2O6 | Mon. |
9.DA.30 | Spodumene | LiAlSi2O6 | Mon. |
Related Minerals - Dana Grouping (8th Ed.)
65.1.3c.1 | Jadeite | Na(Al,Fe3+)Si2O6 | Mon. |
65.1.3c.2 | Aegirine | NaFe3+Si2O6 | Mon. 2/m : B2/b |
65.1.3c.3 | Namansilite | NaMn3+Si2O6 | Mon. |
65.1.3c.4 | Kosmochlor | NaCrSi2O6 | Mon. |
65.1.3c.5 | Natalyite | NaV3+Si2O6 | Mon. |
Related Minerals - Hey's Chemical Index of Minerals Grouping
14.8.1 | Thalénite-(Y) | Y3Si3O10F | Mon. |
14.8.2 | Keiviite-(Y) | Y2Si2O7 | |
14.8.3 | Keiviite-(Yb) | Yb2Si2O7 | Mon. 2/m : B2/m |
14.8.4 | Tombarthite-(Y) | Y4(Si,H4)4O12-x(OH)4+2x | Mon. |
14.8.5 | Thortveitite | Sc2Si2O7 | Mon. |
14.8.6 | Sazhinite-(Ce) | Na2CeSi6O14•6H2O | |
14.8.7 | Monteregianite-(Y) | (Na,K)6(Y,Ca)2Si16O38 · 10H2O | Mon. 2/m |
14.8.8 | Iraqite-(La) | KCa2(La,Ce,Th)Si8O20 | Tet. |
14.8.9 | Ashcroftine-(Y) | K5Na5(Y,Ca)12Si28O70(OH)2(CO3)8 · 8H2O | Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm |
14.8.10 | Nordite-(La) | (La,Ce)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17 | |
14.8.11 | Nordite-(Ce) | (Ce,La)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17 | |
14.8.13 | Cerite-(Ce) | (Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3 | Trig. 3m : R3c |
14.8.14 | Cascandite | Ca(Sc,Fe3+)(HSi3O9) | Tric. 1 |
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 Jervisite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Ito, J., Frondel, C. (1968) Syntheses of the scandium analogues of aegirine, spodumene, andradite and melanotekite. American Mineralogist: 53: 1276-1280.
Clark, J.R., Appleman, D.E., Papike, J.J. (1969) Crystal-chemical characterization of clinopyroxenes based on eight new structure refinements. MSA Special Paper: 2: 31-50.
Hawthorne, F.C., Grundy, H.D. (1973) Refinement of the crystal structure of NaScSi2O6. Acta Crystallographica: B29: 2615-2616.
Mellini, M., Merlino, S., Orlandi, P., Rinaldi, R. (1982) Cascandite and jervisite, two new scandium silicates from Baveno, Italy. American Mineralogist: 67: 599-603. http://www.minsocam.org/ammin/AM67/AM67_599.pdf
Ohashi, H., Osawa, T., Sato, A. (1994) NaScSi2O6. Acta Crystallographica: C50: 838-840.
Merlino, S., Orlandi, P. (2006): Jervisite, NaScSi2O6: a new occurrence, chemical data and crystal structure. Periodico di Mineralogia: 75: 201-220. http://www.dst.uniroma1.it/riviste/permin/testi/V75/20.pdf
Gramaccioli, C. M., Campostrini, I., & Orlandi, P. (2004). Scandium minerals in the miaroles of granite at Baveno, Italy. European Journal of Mineralogy, 16(6), 951-956.
Morimoto, N. (1988). Nomenclature of pyroxenes. Mineralogy and Petrology, 39(1), 55-76. https://rruff.info/uploads/MM52_535.pdf
Ferraris, G., & Ciriotti, M. (2003). From anorthite to vesuvianite: an excursion through the minerals first discovered in Italy. Episodes, 26(3), 256-258. http://www.ferraris-prarolo.com/pdf/2003/EpisodesSept2003-256.pdf
Gramenitskiy, E. N., & Shchekina, T. I. THE EXPERIMENTAL INVESTIGATION OF SCANDIUM BEHAVIOR IN FLUORINE-BEARING MELTS. http://www.pcmedic.web.ru/conf/khitariada/1-2003/informbul-1_2003/magm-25e.pdf
Internet Links for Jervisite
mindat.org URL:
https://www.mindat.org/min-2093.html
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Localities for Jervisite
Locality List




All localities listed without proper references should be considered as questionable.
Canada | |
| Potter, E. G. and Mitchell, R.H. (2005): Mineralogy of the Deadhorse Creek volcaniclastic breccia complex, northwestern Ontario, Canada. Contributions to Mineralogy and Petrology, 150 (2): 212-229 |
Italy | |
| Grill, E. (1935): I minerali del granito di Baveno, la fayalite. Periodico di Mineralogia, 129-133. - Gallitelli, P. (1936): Le miche del granito di Baveno. . Periodico di Mineralogia, 61-76 - Pagliani, G. (1948): Le Zeoliti del granito di Baveno. Periodico di Mineralogia, 175-188. - Ravagnani, D. (1974): I giacimenti uraniferi italiani - Gruppo Mineralogico Lombardo - Museo Civico di Storia Naturale di Milano, Ed., Milano, 188 pp. - min. Rec. 14 (3), 157-168 - Am. Min. 83, 1330-1334 (1998) - Am. Min. 84, 782-789 (1999). - Guastoni, A. & Pezzotta, F. (2004): Kristiansenite a Baveno, second ritrovamento Mondiale della specie. Rivista Mineralogica Italiana, 4/2004, 247-251. - Guastoni, A., Demartin, F., Pezzotta, F. (2004): Sekaninaite delle pegmatiti granitiche di Feriolo e Baveno (VB). Atti della Società Italiana di Scienze Naturali e del Museo Civico di Storia Naturale di Milano, 145, 59-68. - Mineralogist americano (2005) 90, 1442-1452. |
Mellini M., Merlino S., Orlandi P., Rinaldi R.(1982): Cascandite and jervisite, two new scandium silicates from Baveno, Italy. Am. Mineral., 67, 599-603. and Mineralogical Record 14 (3), 157-168; Merlino, S. & Orlandi, P. (2006): Jervisite, NaScSi2O6: a new occurrence, chemical data and crystal structure. Periodico di Mineralogia, 75, 201-220. | |
| Lapis, 13 (9), 29-33+42. |
Mellini, M., Merlino, S., Orlandi, P., Rinaldi, R. (1982): Cascandite and jervisite, two new scandium silicates from Baveno, Italy. American Mineralogist, 67, 599-603. |
Seula mine, Mount Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy