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Teepleite

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About TeepleiteHide

John E. Teeple
Formula:
Na2[B(OH)4]Cl
Colour:
Colourless, white, light beige; colourless in transmitted light
Lustre:
Vitreous, Greasy, Dull
Hardness:
3 - 3½
Specific Gravity:
2.076
Crystal System:
Tetragonal
Name:
Named in honor of John Edgar Teeple (4 January 1874, Kempton, Illinois, U.S. - 28 May 1931, New York City, New York, U.S.), chemist, for his contributions to the knowledge of the mineral chemistry of Searles Lake, California. He also made significant contributions to the deciphering of Mayan glyphs.
This page provides mineralogical data about Teepleite.


Classification of TeepleiteHide

Approved, 'Grandfathered' (first described prior to 1959)
6.AC.40

6 : BORATES
A : Monoborates
C : B(O,OH)4, without and with additional anions; 1(T), 1(T)+OH, etc
25.1.4.1

25 : ANHYDROUS BORATES CONTAINING HYDROXYL OR HALOGEN
1 : Monoborates
10.1.1

10 : Borates with other anions
1 : Borates with halide

Physical Properties of TeepleiteHide

Vitreous, Greasy, Dull
Transparency:
Transparent, Translucent
Colour:
Colourless, white, light beige; colourless in transmitted light
Streak:
White
Hardness:
3 - 3½ on Mohs scale
Tenacity:
Very brittle
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
2.076 g/cm3 (Measured)    2.07 g/cm3 (Calculated)

Optical Data of TeepleiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.519 nε = 1.503
Max Birefringence:
δ = 0.016
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low

Chemical Properties of TeepleiteHide

Formula:
Na2[B(OH)4]Cl
IMA Formula:
Na2B(OH)4Cl

Crystallography of TeepleiteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P4/nmm
Cell Parameters:
a = 7.25 Å, c = 4.84 Å
Ratio:
a:c = 1 : 0.668
Unit Cell V:
254.40 ų (Calculated from Unit Cell)
Morphology:
Crystals tabular {001}. Crystals commonly rounded into cushion-shaped or lens-like forms and are often aggregated into interpenetrating groups.

Type Occurrence of TeepleiteHide

Geological Setting of Type Material:
Residual brine in a lacustrine evaporite deposit after a period of extreme dessication.
Associated Minerals at Type Locality:

Other Language Names for TeepleiteHide

German:Teepleit
Spanish:Teepleita

Related Minerals - Nickel-Strunz GroupingHide

6.AC.05SinhaliteMgAl(BO4)Orth. mmm (2/m 2/m 2/m) : Pnma
6.AC.10PseudosinhaliteMg2Al3(BO3)2(OH)O3Mon.
6.AC.15Béhierite(Ta5+,Nb5+)(BO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
6.AC.15Schiavinatoite(Nb,Ta)(BO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
6.AC.20FroloviteCa[B(OH)4]2Tric.
6.AC.25HexahydroboriteCa[B(OH)4]2 · 2H2O or CaB2O4 · 6H2OMon. 2/m : B2/b
6.AC.30HenmiliteCa2Cu[B(OH)4]2(OH)4Tric.
6.AC.35BandyliteCu[B(OH)4]ClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
6.AC.45Moydite-(Y)Y[B(OH)4](CO3)Orth. mmm (2/m 2/m 2/m) : Pbca
6.AC.50CarboboriteCa2Mg[B(OH)4]2(CO3)2 · 4H2OMon.
6.AC.55SulfoboriteMg3[B(OH)4]2(SO4)(OH,F)2Orth. mm2
6.AC.60LüneburgiteMg3[B2(OH)6](PO4)2 · 6H2OTric.
6.AC.65SeamaniteMn2+3[B(OH)4](PO4)(OH)2Orth. mmm (2/m 2/m 2/m)
6.AC.70CahniteCa2[B(OH)4](AsO4)Tet. 4 : P4

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

25.1.4.2BandyliteCu[B(OH)4]ClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

10.1.2BandyliteCu[B(OH)4]ClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
10.1.3BerboriteBe2(BO3)(OH,F) · H2OTrig.
10.1.4FluoboriteMg3(BO3)(F,OH)3Hex.
10.1.5BoraciteMg3(B7O13)ClOrth. mm2 : Pca21
10.1.6KarliteMg7(BO3)3(OH,Cl)5Orth.
10.1.7ShabyniteMg5(BO3)(OH)5(Cl,OH)2 · 4H2OMon.
10.1.8/9/10HilgarditeCa2B5O9Cl · H2OTric. 1 : P1
10.1.11SolongoiteCa2(H3B3O7)(OH)ClMon.
10.1.12HydrochlorboriteCa4B8O15Cl2 · 21H2OMon.
10.1.13EkateriniteCa2(B4O7)(Cl,OH)2 · 2H2OHex.
10.1.14VolkovskiteKCa4[B5O8OH]4[B(OH)3]2Cl · 4H2OTric. 1 : P1
10.1.15ChelkariteCaMgB2O4(Cl,OH)2 · 5H2O Or near, with Cl:OH = 3:1Orth.
10.1.16JohachidoliteCaAlB3O7Orth. mmm (2/m 2/m 2/m) : Cmma
10.1.17SatimoliteKNa2(Al5Mg2)[B12O18(OH)12](OH)6Cl4·4H2OTrig. 3m (3 2/m) : R3m
10.1.18ChambersiteMn2+3(B7O13)ClOrth. mm2 : Pca21
10.1.19Congolite(Fe2+,Mg)3(B7O13)ClTrig. 3m : R3c
10.1.20EricaiteFe2+3(B7O13)ClOrth.

Other InformationHide

Notes:
Readily soluble in water, yielding an alkaline 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 TeepleiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Teeple (1929) The Industrial Development of Searles Lake Brines, New York: 130 (artificial material).
Gale, W.A., Foshag, and Vonsen (1939), Teepleite, a new mineral from Borax Lake, California, American Mineralogy: 24: 48-52.
Fornaseri, M. (1949), La struttura cristallina della teepleite. Periodico di Mineralogia (Roma), 103-124.
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: 372-373.
Acta Crystallographica (1982): B38: 82-85.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Internet Links for TeepleiteHide

Localities for TeepleiteHide

ⓘ - 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.
Ukraine
 
  • Zhytomyr Oblast' (Zhitomir Oblast')
Lyckberg, P., Chornousenko, V. & Wilson, W. E. (2009): Volodarsk-Volynski, Zhitomir Oblast, Ukraine. Mineralogical Record, 40, 473-506.
USA (TL)
 
  • California
    • Lake Co.
      • Sulphur Creek District (Sulfur Creek District; Wilbur Springs District)
        • Clear Lake Oaks
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: 373; Bradley, W.W. (1938), Thirty-fourth report of the State Mineralogist: California Division Mines Report 34: 297; Gale, William Alexander, W.F. Foshag & Magnus Vonsen (1939), Teepleite, a new mineral from Borax Lake, California: American Mineralogist: 24: 48-52; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 359; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 261, 262.
    • San Bernardino Co.
American Mineralogist (1939): 24: 48-52; Smith, George Irving & D.V. Haines (1964), Character and distribution of nonclastic minerals in the Searles Lake evaporite deposit, California: USGS Bulletin 1181-P: 20; Pemberton, H.E. (1975): The crystal habits and forms of the minerals of Searles Lake, San Bernardino County, California. Mineralogical Record 6 (2): 80; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 261;
Mineral and/or Locality  
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