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Inderborite

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Formula:
CaMg(H3B3O7)2 · 8H2O
Colour:
Colourless to white
Lustre:
Vitreous
Hardness:
Specific Gravity:
2
Crystal System:
Monoclinic
Member of:
Name:
After the type locality, INDER Lake, Kazakhstan, plus in allusion to its composition, being a BORate.
Hide all sections | Show all sections

Classification of InderboriteHide

Approved, 'Grandfathered' (first described prior to 1959)
6.CA.25

6 : BORATES
C : Triborates
A : Neso-triborates
26.3.1.2

26 : HYDRATED BORATES CONTAINING HYDROXYL OR HALOGEN
3 : Triborates
9.3.23

9 : Borates
3 : Borates of Ca and Sr

Physical Properties of InderboriteHide

Vitreous
Transparency:
Transparent
Colour:
Colourless to white
Streak:
White
Hardness:
3½ on Mohs scale
Cleavage:
Distinct/Good
On {100} good.
Fracture:
Conchoidal
Density:
2 g/cm3 (Measured)    

Optical Data of InderboriteHide

Type:
Biaxial (-)
RI values:
nα = 1.482 nβ = 1.512 nγ = 1.530
2V:
Measured: 77° , Calculated: 74°
Max Birefringence:
δ = 0.048
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
none

Chemical Properties of InderboriteHide

Formula:
CaMg(H3B3O7)2 · 8H2O
IMA Formula:
CaMg[B3O3(OH)5]2 · 6H2O

Crystallography of InderboriteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 12.13 Å, b = 7.43 Å, c = 19.23 Å
β = 90.29°
Ratio:
a:b:c = 1.633 : 1 : 2.588
Unit Cell V:
1,733.10 ų (Calculated from Unit Cell)
Morphology:
Crystals to 2 cm. Coarsely crystalline aggregates.

Type Occurrence of InderboriteHide

Synonyms of InderboriteHide

Other Language Names for InderboriteHide

Relationship of Inderborite to other SpeciesHide

Member of:
Other Members of this group:
InderiteMgB3O3(OH)5 · 5H2OMon. 2/m : P21/b
InyoiteCa(H4B3O7)(OH) · 4H2OMon. 2/m
KurnakoviteMgB3O3(OH)5 · 5H2OTric. 1 : P1
MeyerhofferiteCa2(H3B3O7)2 · 4H2OTric. 1 : P1
SolongoiteCa2(H3B3O7)(OH)ClMon.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Realgar1 photo of Inderborite associated with Realgar on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

6.CA.10AmeghiniteNa(H4B3O7)Mon.
6.CA.15InderiteMgB3O3(OH)5 · 5H2OMon. 2/m : P21/b
6.CA.20KurnakoviteMgB3O3(OH)5 · 5H2OTric. 1 : P1
6.CA.30MeyerhofferiteCa2(H3B3O7)2 · 4H2OTric. 1 : P1
6.CA.35InyoiteCa(H4B3O7)(OH) · 4H2OMon. 2/m
6.CA.40SolongoiteCa2(H3B3O7)(OH)ClMon.
6.CA.45Peprossiite-(Ce)(Ce,La)(Al3O)2/3B4O10Hex. 6 m2 : P62m
6.CA.50NifontoviteCa3B6O6(OH)12(H2O)2Mon.
6.CA.55OlshanskyiteCa2[B3O3(OH)6](OH) · 3H2O

Related Minerals - Dana Grouping (8th Ed.)Hide

26.3.1.1InyoiteCa(H4B3O7)(OH) · 4H2OMon. 2/m
26.3.1.3InderiteMgB3O3(OH)5 · 5H2OMon. 2/m : P21/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

9.3.1CalciboriteCa(B2O4)Orth.
9.3.2SibirskiteCa2(HB2O5)(OH)Mon.
9.3.3FabianiteCaB3O5OHMon. 2/m : P21/b
9.3.4UralboriteCa2[B3O3(OH)5 · OB(OH)3]Mon.
9.3.5VimsiteCaB2O2(OH)4Mon.
9.3.6OlshanskyiteCa2[B3O3(OH)6](OH) · 3H2O
9.3.7FroloviteCa[B(OH)4]2Tric.
9.3.8KorzhinskiteCa(B2O4) · H2O
9.3.9TyretskiteCa2B5O9OH · H2OTric.
9.3.10NifontoviteCa3B6O6(OH)12(H2O)2Mon.
9.3.12InyoiteCa(H4B3O7)(OH) · 4H2OMon. 2/m
9.3.13GoweriteCa[B5O8(OH)][B(OH)3] · 3H2OMon.
9.3.14ColemaniteCa[B3O4(OH)3] · H2OMon. 2/m : P21/b
9.3.15PentahydroboriteCaB2O(OH)6 · 2H2OTric.
9.3.16HexahydroboriteCa[B(OH)4]2 · 2H2O or CaB2O4 · 6H2OMon. 2/m : B2/b
9.3.17MeyerhofferiteCa2(H3B3O7)2 · 4H2OTric. 1 : P1
9.3.18PriceiteCa2B5O7(OH)5 · H2OMon. 2/m : P21/b
9.3.19GinoriteCa2B14O20(OH)6 · 5H2OMon.
9.3.20ProbertiteNaCaB5O7(OH)4 · 3H2OMon. 2/m
9.3.21UlexiteNaCa[B5O6(OH)6] · 5H2OTric. 1 : P1
9.3.22HydroboraciteCaMg[B3O4(OH)3]2 · 3H2OMon.
9.3.24WardsmithiteCa5Mg[B4O7]6 · 30H2OHex.
9.3.25HenmiliteCa2Cu[B(OH)4]2(OH)4Tric.
9.3.26StrontioboriteSrB8O11(OH)4Mon.
9.3.27VeatchiteSr2B11O16(OH)5 · H2OMon. m : Bb
9.3.28Veatchite-ASr2B11O16(OH)5 · H2OTric.
9.3.29 P-VeatchiteSr2B11O16(OH)5 · H2O
9.3.30 BalavinskiteSr2B6O11 · 4H2O
9.3.31TunelliteSrB6O9(OH)2 · 3H2OMon. 2/m : P21/b
9.3.32StrontioginoriteCaSrB14O20(OH)6 · 5H2OMon. 2/m : P21/b

Other InformationHide

IR Spectrum:
Inder material [cm-1]: 3655, 3550, 3495, 3420s, 3355s, 3240sh, 3100sh, 1650, 1462, 1423s, 1344, 1294w, 1220sh, 1203, 1100sh, 1064s, 1020sh, 961s, 867s, 814w, 759, 729, 643w, 600w, 530, 445, 410sh
Notes:
Slowly soluble in cold water. Rapidly soluble in hot HCl.
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 InderboriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Gorshov (1941) Comptes rendus de l’académie des sciences de l’U.R.S.S., n.s.: 33: 254.
Ikornikova and Godlevsky (1941) Comptes rendus de l’académie des sciences de l’U.R.S.S., n.s.: 33: 257 (as Metahydroboracite).
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 355-356.
Canadian Mineralogist (1994): 32: 533-539.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).
Chukanov, N.V. (2014): Infrared spectra of mineral species: Extended library. Springer (Springer Geochemistry/Mineralogy), vol. 1, Dordrecht, 1726 pp.

Internet Links for InderboriteHide

Localities for InderboriteHide

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.
Argentina
 
  • Salta
    • Los Andes department
      • Sijes
Galliski, M.A., Cooper, M.A., Márquez-Zavalía, M.F., and Hawthorne, F.C. (2010) Alfredstelznerite: a new calcium borate hydrate from Santa Rosa mine, Salta, northwestern Argentina. Canadian Mineralogist, 48, 123-128
Kazakhstan
 
  • Atyrau Province (Atyrau Oblysy; Atyrau Oblast')
    • Atyrau (Gur'yev)
[Clark, 1993 - "Hey's Mineral Index", p322]; Pekov, I. V. & Abramov, D. V. (1993): Boron deposit of the Inder and its minerals. World of Stones, 1, 23-30.
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Turkey
 
  • Central Anatolia Region
    • Eskişehir Province
      • Kirka
CAHIT HELVACI & RICARDO N. ALONSO (2000) Borate Deposits of Turkey and Argentina; A Summary and Geological Comparison. Turkish Journal of Earth Sciences, Vol. 9, 2000, pp. 1-27; http://www.mineralienatlas.de/lexikon/index.php/T%FCrkei/Eskisehir/Kirka/Sarikaya; Baysal, O. (1972) : A mineralogical study and genesis of Sarıkaya (Kırka) borate deposits. Hacettepe University, Ankara.
Mineral and/or Locality  
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