Help|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery


This page is currently not sponsored. Click here to sponsor this page.
MgB3O3(OH)5 · 5H2O
Colourless, white, pink; ...
Vitreous, Greasy, Pearly, Dull
Member of:
After the type locality, the Inder Lake, Kazakhstan.
Dimorph of:

Classification of Inderite

Approved, 'Grandfathered' (first described prior to 1959)

C : Triborates
A : Neso-triborates

3 : Triborates

9 : Borates
2 : Borates of Be and Mg

Physical Properties of Inderite

Vitreous, Greasy, Pearly, Dull
Diaphaneity (Transparency):
Transparent, Translucent
Pearly on cleavages.
Colourless, white, pink; colourless in transmitted light
Hardness (Mohs):
On {010} perfect; on {110} good.
1.8 g/cm3 (Measured)    1.794 g/cm3 (Calculated)

Optical Data of Inderite

Biaxial (+)
RI values:
nα = 1.488 nβ = 1.491 nγ = 1.505
Measured: 37° , Calculated: 52°
Max Birefringence:
δ = 0.017
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
weak r > v

Chemical Properties of Inderite

MgB3O3(OH)5 · 5H2O
Elements listed in formula:

Crystallography of Inderite

Crystal System:
Class (H-M):
2/m - Prismatic
Space Group:
Cell Parameters:
a = 12.025 Å, b = 13.1145(13) Å, c = 6.8221(3) Å
β = 104.49°
a:b:c = 0.917 : 1 : 0.52
Unit Cell Volume:
V 1,041.64 ų (Calculated from Unit Cell)
Crystals tabular with two pinacoidal cleavages (California); acicular, in reniform nodular aggregates (Inder Lake); prismatic (artificial).
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Occurrences of Inderite

Type Occurrence of Inderite

Associated Minerals at Type Locality:

Relationship of Inderite to other Species

Member of:
Other Members of Group:
InderboriteCaMg(H3B3O7)2 · 8H2O
InyoiteCa(H4B3O7)(OH) · 4H2O
KurnakoviteMgB3O3(OH)5 · 5H2O
MeyerhofferiteCa2(H3B3O7)2 · 4H2O
6.CA.20KurnakoviteMgB3O3(OH)5 · 5H2O
6.CA.25InderboriteCaMg(H3B3O7)2 · 8H2O
6.CA.30MeyerhofferiteCa2(H3B3O7)2 · 4H2O
6.CA.35InyoiteCa(H4B3O7)(OH) · 4H2O
6.CA.55OlshanskyiteCa2[B3O3(OH)6](OH) · 3H2O
9.2.6AksaiteMg[B6O7(OH)6] · 2H2O
9.2.7WightmaniteMg5(BO3)O(OH)5 · 2H2O
9.2.9KurnakoviteMgB3O3(OH)5 · 5H2O
9.2.10HalurgiteMg2[B4O7]2 · 5H2O
9.2.12HungchaoiteMg(B4O7) · 9H2O
9.2.13AdmontiteMgB6O10 · 7H2O
9.2.14McallisteriteMg2[B6O7(OH)6]2 · 9H2O
9.2.15RivadaviteNa6Mg[B6O7(OH)6]4 · 10H2O
9.2.17IquiqueiteK3Na4Mg(CrO4)B24O39(OH) · 12H2O

Other Names for Inderite

Name in Other Languages:

Other Information

IR Spectrum:
Boron Open Pit material [cm-1]: 3625, 3580, 3470s, 3435s, 3360s, 3260s, 3060sh, 2940sh, 1705sh, 1685, 1650w, 1449, 1405s, 1350s, 1280, 1260sh, 1179, 1134, 1047s, 999s, 870s, 802, 748, 675sh, 657, 620sh, 583, 568, 487w, 347w
Other Information:
Insoluble in water. Readily soluble in warm, dilute 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 Inderite

Reference List:
Boldyreva and Egorova (1937) Mat. Centr. Sc. Geol. Prosp. Inst. U.S.S.R. Gen. Ser., no. 2.

Boldyreva (1937) Mineralogicheskoe Obshchestvo, Leningrad, Zapiski: 66: 651.

Feigelson, Grushvitsky, and Korobochkina (1939) Comptes rendus de l’académie des sciences de l’U.R.S.S.: 22: 242.

Nikolaev and Chelishcheva (1940) Comptes rendus de l’académie des sciences de l’U.R.S.S.: 28: 127.

Heinrich (1946) American Mineralogist: 31: 71.

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: 360-361.

Frondel, C., et al (1956), Lesserite, a new borate mineral, American Mineralogist: 41: 927-928.

Rumanova, I.M. and Ashirov, A. (1964) The determination of the crystal structure of inderite. Soviet Physics-Crystallography: 8: 414-428.

Acta Crystallographica (1976): B32: 1329-1333.

Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Anthony, J.W., Bideaux, R.A., Bladh, K.W., and Nichols, M.C. (2003) Handbook of Mineralogy, Volume V. Borates, Carbonates, Sulfates. Mineral Data Publishing, Tucson, AZ, 813pp.: 323.

Chukanov, N.V. (2014): Infrared spectra of mineral species: Extended library. Springer (Springer Geochemistry/Mineralogy), vol. 1, Dordrecht, 1726 pp.

Internet Links for Inderite URL:
Please feel free to link to this page.

Localities for Inderite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
  • Salta
    • Los Andes department
      • Salar del Hombre Muerto
Alonso, R. N. (1999). On the origin of La Puna borates. Acta geológica hispánica, 34(2), 141-166.; CAHIT HELVACI & RICARDO N. ALONSO (2000) Borate Deposits of Turkey and Argentina; A Summary and Geological Comparison. Turkish Journal of Earth Sciences, 9:1-27.
      • 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
  • Qinghai Province
    • Haixi Autonomous Prefecture
      • Da Qaidam Co. (Dachaidan Co.)
Shaoxiu Yang (1991): Journal of Lake Sciences 3(1), 1-10; Garrett, D.E. (1998): Borates: Handbook of deposits, processing, properties, and use. Academic Press (San Diego, London), 491 pp.; Zheng, M. P., Qi, W., & Yuan, H. R. (2005). Characteristics of salt lake boron deposits and magnesium borate deposits of the Qinghai-Tibet Plateau, China. In Mineral Deposit Research: Meeting the Global Challenge (pp. 1123-1125). Springer Berlin Heidelberg.
Xiyu Zheng (1994): Journal of Lake Sciences 6(3), 267-275
  • Tibet Autonomous Region
    • Ngari Prefecture
      • Gê'gyai Co. (Geji Co.)
Xiyu Zheng and Shengsong Yu (1981): Scientia Geographica Sinica 1(1), 66-76; Mianping Zheng and Wengao Liu (1982): Geological Review 28(3), 263-266; Shaoxiu Yang (1991): Journal of Lake Sciences 3(1), 1-10; Xiyu Zheng (1994): Journal of Lake Sciences 6(3), 267-275; Xifang Liu and Mianping Zheng (2010): Acta Geologica Sinica 89(11), 1601-1612; Mianping Zheng and Xifang Liu (2010): Acta Geologica Sinica 84(11), 1585-1600
  • Piedmont
    • Torino Province
      • Canavese District
        • Léssolo
          • Cálea
M.E. Ciriotti (2006) EDX probed
  • Atyrau Province (Atyrau Oblysy; Atyrau Oblast')
    • Atyrau (Gur'yev)
World of Stones #1; Evseev, A. A. (1995) Kazaknstan and Middle Asia. A brief Mineralogical Guide. World of Stone 8:24-30; Pekov, I. V. & Abramov, D. V. (1993): Boron deposit of the Inder and its minerals. World of Stones, 1, 23-30.
        • Mt Kzyl-tau
Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
  • Eastern-Siberian Region
    • Sakha Republic (Saha Republic; Yakutia)
      • Polar Yakutia
        • Dogdo River Basin
          • Tas-Khayakhtakh Range
  • 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;; Baysal, O. (1972) : A mineralogical study and genesis of Sarıkaya (Kırka) borate deposits. Hacettepe University, Ankara.
  • California
    • Inyo Co.
      • Furnace Creek District (Furnace Creek Borate District; Death Valley Area Borate Deposits; Ryan area)
        • Ryan
Erd, R.C., J.F. McAllister, and A.C. Vlisidis (1970) Wardsmithite 5CaO • MgO •12B2O3 •30H2O, a new borate mineral from the Death Valley region, California. American Mineralogist: 55: 349-357; Erd, R.C., J.F. McAllister, and G.D. Eberlein (1979) New data on hungchaoite, the second world occurrence, Death Valley region, California. American Mineralogist: 64: 369-375; Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols.
    • Kern Co.
      • Kramer District (Kramer Borate District)
Frondel, Clifford & V. Morgen (1956), Inderite and gerstleyite from the Kramer borate district, Kern County, California: American Mineralogist: 41: 839-843; Frondel, Clifford, V. Morgan & J.L.T. Waugh (1956), Lesserite, a new borate mineral American Mineralogist: 41: 927-928; Schaller, Waldemar Theodore & Mary Emma Mrose (1960), The naming of the hydrous magnesium borate minerals from Boron, California – a preliminary note: American Mineralogist: 45: 732-734; Rumanova, I.M. and Ashirov, A. (1964) The determination of the crystal structure of inderite. Soviet Physics-Crystallography: 8: 414-428; Bowser, C.J. (1965a), Geochemistry and petrology of the sodium borates in the non-marine evaporative environment: Unpublished Ph.. dissertation, University of California, Los Angeles, 307 pp.: 49-50; Morgan, V. and Erd, R.C. (1969) Minerals of the Kramer borate district, California California Division of Mines and Geology Mineral Information Service: 22(9&10): 150-152; Razmanova, .P., Rumanova, I.M., and Belov, N.V. (1970) Crystal structure of kurnakovite Mg2B6O11•15H2O = 2Mg[B3O3(OH)5]•5H2O. Soviet Physics, Doklady: 14: 1139; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 240.
Minerals Notes and News (1948), Inderite discovered at Boron: Mineral Notes & News Bulletin 127: 12; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 227-228.
American Mineralogist 41 (1956), 839-843
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 227-228.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 228.
Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2017, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: August 17, 2017 14:46:57 Page generated: July 4, 2017 05:45:54
Go to top of page