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Pinnoite

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About PinnoiteHide

Johann F. H. Pinno
Formula:
Mg[B2O(OH)6]
Colour:
Yellow to yellow-green; yellow in transmitted light
Lustre:
Vitreous
Hardness:
Specific Gravity:
2.27
Crystal System:
Tetragonal
Name:
Named in honor of Johann Friedrich Hermann Pinno (16 March 1831, Kleinkamsdorf, Prussia, German Empire - 6 September 1902, Berlin-Charlottenburg, German Empire), Chief Councillor of Mines, Halle, Germany.
This page provides mineralogical data about Pinnoite.


Classification of PinnoiteHide

Approved, 'Grandfathered' (first described prior to 1959)
First Published:
1884
6.BB.05

6 : BORATES
B : Diborates
B : Neso-diborates with double tetrahedra B2O(OH)6; 2(2T)
25.2.3.1

25 : ANHYDROUS BORATES CONTAINING HYDROXYL OR HALOGEN
2 : Diborates
9.2.8

9 : Borates
2 : Borates of Be and Mg

Physical Properties of PinnoiteHide

Vitreous
Transparency:
Translucent
Colour:
Yellow to yellow-green; yellow in transmitted light
Hardness:
3½ on Mohs scale
Fracture:
Irregular/Uneven
Density:
2.27 g/cm3 (Measured)    2.29 g/cm3 (Calculated)

Optical Data of PinnoiteHide

Type:
Uniaxial (+)
RI values:
nω = 1.565 nε = 1.575
Max Birefringence:
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low

Chemical Properties of PinnoiteHide

Formula:
Mg[B2O(OH)6]
IMA Formula:
MgB2O(OH)6

Crystallography of PinnoiteHide

Crystal System:
Tetragonal
Class (H-M):
4/m - Dipyramidal
Space Group:
P42/m
Cell Parameters:
a = 7.617 Å, c = 8.19 Å
Ratio:
a:c = 1 : 1.075
Unit Cell V:
475.17 ų (Calculated from Unit Cell)
Morphology:
Crystals short prismatic [001], rare. Commonly crystalline, fine-granular to faintly fibrous. Nodules with radiated fibrous structure and a crystalline surface.

Type Occurrence of PinnoiteHide

Geological Setting of Type Material:
Upper Kainite layers of a salt deposit.
Associated Minerals at Type Locality:
Reference:
Staute, H. (1884) Pinnoit, ein neues Borat von Stassfurt. Berichte der Deutschen Chemischen Gesellschaft: 17: 1584-1586.

Other Language Names for PinnoiteHide

German:Pinnoit
Simplified Chinese:柱硼镁石
Spanish:Pinnoita
Traditional Chinese:柱硼鎂石

Related Minerals - Nickel-Strunz GroupingHide

6.BB.10PentahydroboriteCaB2O(OH)6 · 2H2OTric.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

9.2.1HambergiteBe2(BO3)(OH)Orth. mmm (2/m 2/m 2/m) : Pbca
9.2.2SuaniteMg2[B2O5]Mon.
9.2.3KotoiteMg3[BO3]2Orth. mmm (2/m 2/m 2/m) : Pnnm
9.2.4SzaibélyiteMgBO2(OH)Mon.
9.2.5PreobrazhenskiteMg3B11O15(OH)9Orth.
9.2.6AksaiteMg[B6O7(OH)6] · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
9.2.7WightmaniteMg5(BO3)O(OH)5 · 2H2OMon.
9.2.9KurnakoviteMgB3O3(OH)5 · 5H2OTric. 1 : P1
9.2.10HalurgiteMg2[B4O7]2 · 5H2OMon.
9.2.11InderiteMgB3O3(OH)5 · 5H2OMon. 2/m : P21/b
9.2.12HungchaoiteMg(B4O7) · 9H2OTric. 1
9.2.13AdmontiteMgB6O10 · 7H2OMon.
9.2.14McallisteriteMg2[B6O7(OH)6]2 · 9H2OTrig. 3m (3 2/m) : R3c
9.2.15RivadaviteNa6Mg[B6O7(OH)6]4 · 10H2OMon. 2/m : P21/m
9.2.16KaliboriteKMg2H[B6O8(OH)5]2(H2O)4Mon. 2/m : B2/b
9.2.17IquiqueiteK3Na4Mg(CrO4)B24O39(OH) · 12H2OHex.

Other InformationHide

Notes:
Soluble in dilute acids. Dissolves in boiling water with the formation of an alkaline solution with a flocculent precipitate which re-dissolves upon cooling of the solution.
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 PinnoiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Staute, H. (1884) Pinnoit, ein neues Borat von Stassfurt. Berichte der Deutschen Chemischen Gesellschaft: 17: 1584-1586.
Luedecke (1885) Zeitschrift für Naturwissenschaften, Halle: 58: 645.
Boeke (1910) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 531.
Goldschmidt, V. (1920) Atlas der Krystallformen. 9 volumes, atlas, and text, vol. 6: 155.
Stadler, H.P. (1947) The Cell Dimensions and Space-Group of Pinnoite. Mineralogical Magazine: 28: 26-28.
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: 334-335.
Paton, F., MacDonald, S.G.G. (1957) The crystal structure of pinnoite. Acta Crystallographica: 10: 653-656.
Krogh-Moe, J. (1967) A note on the structure of pinnoite. Acta Crystallographica: 23: 500-501.
Genkina, E.A., Malinovskii, Y.A. (1983) Refinement of the structure of pinnoite: Location of hydrogen atoms. Soviet Physics - Crystallography (Krystallografiya): 28: 475-477.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).
Strunz, H. (1997) Classification of borate minerals. European Journal of Mineralogy: 9: 225-232.

Internet Links for PinnoiteHide

Localities for PinnoiteHide

ⓘ - 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
Alonso, R. N. (1999). On the origin of La Puna borates. Acta geológica hispánica, 34(2), 141-166.
China
 
Kezao Chen (1992): Quaternary Sciences 3(8), 193-202
  • Qinghai Province
    • Haixi Autonomous Prefecture
      • Da Qaidam Co. (Dachaidan Co.)
Keqin Cai and Ziqiang Qian (1982): Acta Mineralogica Sinica 2(4), 290-295; 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.; Qingzhong Wang, Yingkai Xiao, Chonggeng Zhang, Haizhen Wei, and Zhiqi Zhao (2001): Bulletin of Mineralogy, Petrology and Geochemistry 20(4), 344-366; 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.
Dapeng Sun (1991): Journal of Mineralogy and Petrology 12(4), 57-65; Shaoxiu Yang (1991): Journal of Lake Sciences 3(1), 1-10; Xiyu Zheng (1994): Journal of Lake Sciences 6(3), 267-275; Garrett, D.E. (1998): Borates: Handbook of deposits, processing, properties, and use. Academic Press (San Diego, London), 491 pp.; Qingzhong Wang, Yingkai Xiao, Chonggeng Zhang, Haizhen Wei, and Zhiqi Zhao (2001): Bulletin of Mineralogy, Petrology and Geochemistry 20(4), 344-366
  • 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; Zheng Xiyu (1984): Chinese Journal of Oceanology and Limnology 2(2), 218-226; Shaoxiu Yang (1991): Journal of Lake Sciences 3(1), 1-10; Xiyu Zheng (1994): Journal of Lake Sciences 6(3), 267-275; Qingzhong Wang, Yingkai Xiao, Chonggeng Zhang, Haizhen Wei, and Zhiqi Zhao (2001): Bulletin of Mineralogy, Petrology and Geochemistry 20(4), 344-366; Xifang Liu and Mianping Zheng (2010): Acta Geologica Sinica 89(11), 1601-1612
Xifang Liu and Mianping Zheng (2010): Acta Geologica Sinica 89(11), 1601-1612
  • Xinjiang Autonomous Region
    • Wulumuqi Prefecture (Ürümqi Prefecture; Ürümchi Prefecture)
      • Dabancheng District
        • Dabancheng salt lakes
Bingxiao Li (1992): Journal of Lake Sciences 4(1), 48-55
Germany
 
  • Saxony-Anhalt
    • Stassfurt Potash deposit
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: 334.
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: 368.
Milch, L. (1891): Über ein neues krystallisiertes Borat von Stassfurt.- Z. Kryst. 18, 478-480; 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: 334-335.
Luedecke, O. (1891): Über Heintzit, ein neues Borat von Leopoldshall.- Z. Kryst. 18, 481-485; 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: 334, 368.
Kazakhstan
 
  • Aktobe
    • Aksai Valley
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
  • Atyrau
    • 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.
Russia
 
  • Irkutsk Oblast
    • Zheleznogorsk (Korshunikha)
Mazurov, M.P., Grishina, S.N., Istomin, V.E., and Titov, A.T. (2007): Geology of Ore Deposits 49(4), 271-284.; Mazurov et al (2007) Geology of Ore Deposits, 49, 271–284.
USA
 
  • California
    • Inyo Co.
      • Death Valley
Econ Geol (1996) 91:622-635
Mineral and/or Locality  
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