Calciborite
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About Calciborite
Formula:
Ca(B2O4)
Crystal System:
Orthorhombic
Name:
The name alludes to the composition, containing CALCIum and BORon.
Calcium Metaborate
Classification of Calciborite
Approved, 'Grandfathered' (first described prior to 1959)
5/J.02-10
6.BC.10
6 : BORATES
B : Diborates
C : Ino-diborates with triangles and/or tetrahedra
6 : BORATES
B : Diborates
C : Ino-diborates with triangles and/or tetrahedra
24.5.2.1
24 : ANHYDROUS BORATES
5 : Miscellaneous
24 : ANHYDROUS BORATES
5 : Miscellaneous
9.3.1
9 : Borates
3 : Borates of Ca and Sr
9 : Borates
3 : Borates of Ca and Sr
Optical Data of Calciborite
Type:
Biaxial (-)
RI values:
nα = 1.595 nβ = 1.654 nγ = 1.670
2V:
Measured: 54° , Calculated: 52°
Max Birefringence:
δ = 0.075

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:
Moderate
Dispersion:
r > v or r < v
Chemical Properties of Calciborite
Formula:
Ca(B2O4)
IMA Formula:
CaB2O4
Elements listed:
Crystallography of Calciborite
Crystal System:
Orthorhombic
Cell Parameters:
a = 8.38 Å, b = 13.82 Å, c = 5 Å
Ratio:
a:b:c = 0.606 : 1 : 0.362
Unit Cell V:
579.06 ų (Calculated from Unit Cell)
Type Occurrence of Calciborite
Other Language Names for Calciborite
Related Minerals - Nickel-Strunz Grouping
6.BC.15 | Vimsite | CaB2O2(OH)4 | Mon. |
6.BC.20 | Sibirskite | Ca2(HB2O5)(OH) | Mon. |
6.BC.20 | Parasibirskite | Ca2(B2O5) · H2O | Mon. |
Related Minerals - Hey's Chemical Index of Minerals Grouping
9.3.2 | Sibirskite | Ca2(HB2O5)(OH) | Mon. |
9.3.3 | Fabianite | CaB3O5OH | Mon. 2/m : P21/b |
9.3.4 | Uralborite | Ca2[B3O3(OH)5 · OB(OH)3] | Mon. |
9.3.5 | Vimsite | CaB2O2(OH)4 | Mon. |
9.3.6 | Olshanskyite | Ca2[B3O3(OH)6](OH) · 3H2O | |
9.3.7 | Frolovite | Ca[B(OH)4]2 | Tric. |
9.3.8 | Korzhinskite | Ca(B2O4) · H2O | |
9.3.9 | Tyretskite | Ca2B5O9OH · H2O | Tric. |
9.3.10 | Nifontovite | Ca3B6O6(OH)12(H2O)2 | Mon. |
9.3.12 | Inyoite | Ca(H4B3O7)(OH) · 4H2O | Mon. 2/m |
9.3.13 | Gowerite | Ca[B5O8(OH)][B(OH)3] · 3H2O | Mon. |
9.3.14 | Colemanite | Ca[B3O4(OH)3] · H2O | Mon. 2/m : P21/b |
9.3.15 | Pentahydroborite | CaB2O(OH)6 · 2H2O | Tric. |
9.3.16 | Hexahydroborite | Ca[B(OH)4]2 · 2H2O or CaB2O4 · 6H2O | Mon. 2/m : B2/b |
9.3.17 | Meyerhofferite | Ca2(H3B3O7)2 · 4H2O | Tric. 1 : P1 |
9.3.18 | Priceite | Ca2B5O7(OH)5 · H2O | Mon. 2/m : P21/b |
9.3.19 | Ginorite | Ca2B14O20(OH)6 · 5H2O | Mon. |
9.3.20 | Probertite | NaCaB5O7(OH)4 · 3H2O | Mon. 2/m |
9.3.21 | Ulexite | NaCa[B5O6(OH)6] · 5H2O | Tric. 1 : P1 |
9.3.22 | Hydroboracite | CaMg[B3O4(OH)3]2 · 3H2O | Mon. |
9.3.23 | Inderborite | CaMg(H3B3O7)2 · 8H2O | Mon. 2/m |
9.3.24 | Wardsmithite | Ca5Mg[B4O7]6 · 30H2O | Hex. |
9.3.25 | Henmilite | Ca2Cu[B(OH)4]2(OH)4 | Tric. |
9.3.26 | Strontioborite | SrB8O11(OH)4 | Mon. |
9.3.27 | Veatchite | Sr2B11O16(OH)5 · H2O | Mon. m : Bb |
9.3.28 | Veatchite-A | Sr2B11O16(OH)5 · H2O | Tric. |
9.3.29 | P-Veatchite | Sr2B11O16(OH)5 · H2O | |
9.3.30 | Balavinskite | Sr2B6O11 · 4H2O | |
9.3.31 | Tunellite | SrB6O9(OH)2 · 3H2O | Mon. 2/m : P21/b |
9.3.32 | Strontioginorite | CaSrB14O20(OH)6 · 5H2O | Mon. 2/m : P21/b |
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 Calciborite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1956): 41: 815.
American Mineralogist (1964): 49: 820.
Soviet Physics – Doklady: 15: 1003-1005.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).
Kobayashi, S., Ando, T., Kanayama, A., Tanabe, M., Kishi, S., Kusachi, I. (2014): Calciborite from the Fuka mine, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 109, 13-17.
Internet Links for Calciborite
mindat.org URL:
https://www.mindat.org/min-854.html
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Please feel free to link to this page.
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Localities for Calciborite
Locality List




All localities listed without proper references should be considered as questionable.
Japan | |
| Kobayashi, S., Ando, T., Kanayama, A., Tanabe, M., Kishi, S., Kusachi, I. (2014): Calciborite from the Fuka mine, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 109, 13-17. |
Russia (TL) | |
| [AmMin 85:1322]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow |
Novofrolovskoye B-Cu deposit, Tur'insk, Turya river, Tur'insk-Auerbakovsk ore field, Sverdlovsk Oblast, Russia