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About NasiniteHide

Raffaello Nasini
Na2[B5O8(OH)] · 2H2O
Crystal System:
Named in 1961 by Curzio Cipriani and Piero Vannuccini honor of Raffaello Nasini (11 August 1854, Siena, Italy – 29 March 1931, Rome, Italy), chemist at the universities of Padua and Pisa.
This page provides mineralogical data about Nasinite.

Classification of NasiniteHide


E : Pentaborates
C : Phyllo-pentaborates

5 : Pentaborates

9 : Borates
1 : Borates of the alkalis and boric acid

Optical Data of NasiniteHide

Biaxial (-)
RI values:
nα = 1.494 nβ = 1.512 nγ = 1.524
Measured: 66° , Calculated: 76°
Max Birefringence:
δ = 0.030
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of NasiniteHide

Na2[B5O8(OH)] · 2H2O
IMA Formula:
Na2B5O8(OH) · 2H2O

Crystallography of NasiniteHide

Crystal System:
Cell Parameters:
a = 11.99 Å, b = 6.52 Å, c = 11.16 Å
a:b:c = 1.839 : 1 : 1.712
Unit Cell V:
872.43 ų (Calculated from Unit Cell)

Type Occurrence of NasiniteHide

Other Language Names for NasiniteHide


Common AssociatesHide

Associated Minerals Based on Photo Data:
Biringuccite1 photo of Nasinite associated with Biringuccite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

6.EC.05BiringucciteNa2B5O8(OH) · H2OMon.
6.EC.10GoweriteCa[B5O8(OH)][B(OH)3] · 3H2OMon.
6.EC.15P-VeatchiteSr2B11O16(OH)5 · H2O
6.EC.15VeatchiteSr2B11O16(OH)5 · H2OMon. m : Bb
6.EC.20VolkovskiteKCa4[B5O8OH]4[B(OH)3]2Cl · 4H2OTric. 1 : P1
6.EC.25TuzlaiteNaCaB5O8(OH)2 · 3H2OMon. 2/m : P21/b
6.EC.35BrianroulstoniteCa3[B5O6(OH)6](OH)Cl2 · 8H2OMon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

9.1.1SassoliteH3BO3Tric. 1 : P1
9.1.4BiringucciteNa2B5O8(OH) · H2OMon.
9.1.6KerniteNa2[B4O6(OH)2] · 3H2OMon. 2/m : P2/b
9.1.7EzcurriteNa4B10O17 · 7H2OTric. 1 : P1
9.1.8TincalconiteNa2(B4O7) · 5H2OTrig. 3 2 : R3 2
9.1.9BoraxNa2(B4O5)(OH)4 · 8H2OMon. 2/m : B2/b
9.1.11SborgiteNa[B5O6(OH)4] · 3H2OMon.
9.1.12AristarainiteNa2MgB12O20 · 8H2OMon. 2/m : P21/b
9.1.13SantiteK[B5O6(OH)4] · 2H2OOrth.
9.1.14Larderellite(NH4)B5O7(OH)2 · H2OMon.
9.1.15Ammonioborite(NH4)2[B5O6(OH)4]2 · H2OMon. 2/m : B2/b
9.1.16Rhodizite(K,Cs)Al4Be4(B,Be)12O28Iso. 4 3m : P4 3m

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 NasiniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Cipriani, C. (1959) Un nuovo borato a Lardello (abs.) Rendiconti della Società Mineralogica Italiana: 15: 344. (later determined to be mixed nasinite and biringuccite)
Cipriani, C., Vannuccini, P. (1961) Hoeferite e nasinite: due nuovi borati fra i prodotti di Larderello. Parte I. Atti della Accademia Nazionale dei Lincei. Rendiconti della Classe di Scienze Fisiche, Matematiche e Naturali: 30: 74-83.
Cipriani, C., Vannuccini, P. (1961) Hoeferite e nasinite: due nuovi borati fra i prodotti di Larderello. Parte II. Atti della Accademia Nazionale dei Lincei. Rendiconti della Classe di Scienze Fisiche, Matematiche e Naturali: 30: 235-245.
Cipriani, C. (1961) A proposito del nome del borato naturale 2Na2O*5B2O3*4H2O do Lardarello. Atti accad. nazl. Lincei, Rend. classe sci. fis., mat. e nat.: 31: 141-142.
Fleischer, M. (1963) New mineral names. American Mineralogist: 48: 708-712.
International Mineralogical Association (1967) Commission on new minerals and mineral names. Mineralogical Magazine: 36: 131-136.
Corazza, E., Menchetti, S., Sabelli, C. (1975) The crystal structure of nasinite, Na2[B5O8(OH)]·2H2O. Acta Crystallographica: B31: 2405-2410.
Grew, E.S., Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Internet Links for NasiniteHide

Localities for NasiniteHide

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)
  • Tuscany
    • Pisa Province
      • Pomarance
C. Cipriani, P. Vannuccini: Atti Rend. Accad. Lincei 30:74-83 + 235-245 (1961)
Mineral and/or Locality  
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