SUPPORT US. We rely on your donations to survive.
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Meyerhofferite

This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About MeyerhofferiteHide

06590190015742040441835.jpg
Wilhelm Meyerhoffer
Formula:
Ca2(H3B3O7)2 · 4H2O
Colour:
Colourless, white
Lustre:
Vitreous, Silky
Hardness:
2
Specific Gravity:
2.12
Crystal System:
Triclinic
Member of:
Name:
Named in honor of Wilhelm Meyerhoffer (13 September 1864, Pinsk, Belarus – 21 April 1906, Merano, Italy), chemist at the University of Vienna and University of Berlin. He was a collaborator with J.H. van't Hoff on the composition and origin of saline minerals, and he synthesized the compound.
Inderite Group.
Occurs principally as an alteration product of Inyoite.


Classification of MeyerhofferiteHide

Approved, 'Grandfathered' (first described prior to 1959)
6.CA.30

6 : BORATES
C : Triborates
A : Neso-triborates
26.3.2.1

26 : HYDRATED BORATES CONTAINING HYDROXYL OR HALOGEN
3 : Triborates
9.3.17

9 : Borates
3 : Borates of Ca and Sr

Pronounciation of MeyerhofferiteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of MeyerhofferiteHide

Vitreous, Silky
Transparency:
Transparent, Translucent
Colour:
Colourless, white
Hardness:
Cleavage:
Perfect
On {010} perfect; {100} and {110} in traces.
Density:
2.12 g/cm3 (Measured)    2.116 g/cm3 (Calculated)

Optical Data of MeyerhofferiteHide

Type:
Biaxial (-)
RI values:
nα = 1.500 nβ = 1.535 nγ = 1.560
2V:
Measured: 78° , Calculated: 78°
Max Birefringence:
δ = 0.060
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
relatively weak

Chemical Properties of MeyerhofferiteHide

Formula:
Ca2(H3B3O7)2 · 4H2O
IMA Formula:
CaB3O3(OH)5 · H2O

Crystallography of MeyerhofferiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 6.6 Å, b = 8.33 Å, c = 6.48 Å
α = 91°, β = 101.31°, γ = 86.55°
Ratio:
a:b:c = 0.792 : 1 : 0.778
Unit Cell V:
348.70 ų (Calculated from Unit Cell)
Morphology:
Crystals elongated [001] and usually flattened (100). Fibrous. As pseudomorphs after Inyoite.

Crystallographic forms of MeyerhofferiteHide

Crystal Atlas:
Image Loading
Click on an icon to view
Meyerhofferite no.1 - Goldschmidt (1913-1926)
3d models and HTML5 code kindly provided by www.smorf.nl.

Toggle
Edge Lines | Miller Indices | Axes

Transparency
Opaque | Translucent | Transparent

View
Along a-axis | Along b-axis | Along c-axis | Start rotation | Stop rotation

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File    Best | x | y | z | a | b | c
Rotation
Stop | Start
Labels
Console Off | On | Grey | Yellow
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0005296MeyerhofferiteBurns P C, Hawthorne F C (1993) Hydrogen bonding in meyerhofferite: An X-ray and structure energy study from Mount Blanco, Death Valley, California The Canadian Mineralogist 31 305-3121993Mount Blanco, Death Valley, California, USA0293
CIF Raw Data - click here to close

Type Occurrence of MeyerhofferiteHide

Other Language Names for MeyerhofferiteHide

Relationship of Meyerhofferite to other SpeciesHide

Member of:
Other Members of this group:
InderboriteCaMg(H3B3O7)2 · 8H2OMon. 2/m
InderiteMgB3O3(OH)5 · 5H2OMon. 2/m : P21/b
InyoiteCa(H4B3O7)(OH) · 4H2OMon. 2/m
KurnakoviteMgB3O3(OH)5 · 5H2OTric. 1 : P1
SolongoiteCa2(H3B3O7)(OH)ClMon.

Common AssociatesHide

Associated Minerals Based on Photo Data:
62 photos of Meyerhofferite associated with InyoiteCa(H4B3O7)(OH) · 4H2O
7 photos of Meyerhofferite associated with ColemaniteCa[B3O4(OH)3] · H2O
2 photos of Meyerhofferite associated with Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
1 photo of Meyerhofferite associated with NobleiteCaB6O9(OH)2 · 3H2O

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.25InderboriteCaMg(H3B3O7)2 · 8H2OMon. 2/m
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) · 3H2OTric.

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) · 3H2OTric.
9.3.7FroloviteCa[B(OH)4]2Tric.
9.3.8KorzhinskiteCa(B2O4) · H2OMon. 2/m : P2/m
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
9.3.18PriceiteCa2B5O7(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.
9.3.23InderboriteCaMg(H3B3O7)2 · 8H2OMon. 2/m
9.3.24WardsmithiteCa5Mg[B4O7]6 · 30H2OHex.
9.3.25HenmiliteCa2Cu[B(OH)4]2(OH)4Tric.
9.3.26StrontioboriteSr[B8O11(OH)4]Mon. 2 : P21
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

Notes:
Readily soluble in acids.
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 MeyerhofferiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Schaller, W.T. (1914) Journal of the Washington Academy of Science: 4: 355.
Schaller, W.T. (1916) Inyoite and meyerhofferite, two new calcium borates. USGS Bull. 610: 35-55.
Palache, Charles (1938) Crystallography of meyerhofferite: American Mineralogist: 23: 644-648.
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: 356-358.
Christ, C.L. & J.R. Clark (1956), The structure of meyerhofferite 2CaO • 3B2O•7H2O, aP1 crystal, determined by the direct method of Hauptman and Karle: Acta Crystallographica: 9: 830.
Zeitschrift für Kristallographie (1960) 114: 321, 343-354.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Internet Links for MeyerhofferiteHide

Localities for MeyerhofferiteHide

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 Province
    • Los Andes department
      • Sijes
Jewel Tunnel Import specimens.
Colorado School of Mines Geology Museum specimen
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; 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.
Mexico
 
  • Sonora
    • Magdalena Municipality
      • Aguja
Garrett, D.E. (1998): Borates - Handbook of Deposits, Processing, Properties and Use. Academic Press (San Diego, London), 475 pp.; Miranda-Gasca, M. A., Gomez-Caballero, J. A., & Eastoe, C. J. (1998). Borate deposits of northern Sonora, Mexico; stratigraphy, tectonics, stable isotopes, and fluid inclusions. Economic Geology, 93(4), 510-523.
Turkey
 
  • Aydin Province
    • Çine District
  • Balikesir Province
    • Bigadiç District
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
Helvaci, C., & Alaca, O. (1991). Geology and mineralogy of the Bigadiç borate deposits and vicinity. Mineral Res. Expl. Bull, 113, 31-63.
Meixner, H. (1953): Contributions to Mineralogy and Petrology 3(6), 445-455.
Helvaci, C., & Alaca, O. (1991). Geology and mineralogy of the Bigadiç borate deposits and vicinity. Mineral Res. Expl. Bull, 113, 31-63.
      • Faraşköy (Faraş)
Erik Vercammen collection
Ex Wolfgang Schneider collection and label
      • Iskeleköy (Iskele)
Meixner, H. (1953): Contributions to Mineralogy and Petrology 3(6), 445-455.; Helvaci, C., & Alaca, O. (1991). Geology and mineralogy of the Bigadiç borate deposits and vicinity. Mineral Res. Expl. Bull, 113, 31-63.
Helvaci, C., & Alaca, O. (1991). Geology and mineralogy of the Bigadiç borate deposits and vicinity. Mineral Res. Expl. Bull, 113, 31-63.
  • Eskişehir Province
    • Seyitgazi District
      • 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.
  • Kütahya Province
    • Emet District
      • Emet Borate deposit
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; American Mineralogist; April 1979; v. 64; no. 3-4; p. 362-366
J.W. Anthony, R.A. Bideaux, K.W. Bladh, M.C. Nichols: Handbook of Mineralogy, Vol. V (2003)
USA (TL)
 
  • California
    • Inyo Co.
      • Amargosa Range
        • Black Mountains
          • Monte Blanco
Journal of the Washington Academy of Science (1914): 4: 354-356; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, 7th. ed., Volume II: 357, 359; Schaller, Waldemar Theodore (1916b), Inyoite and meyerhofferite, two new calcium borates: USGS Bulletin 610: 35; Foshag, William Frederick (1921), The origin of the colemanite deposits of California: Economic Geology: 16: 200; Foshag, William Frederick (1924a), Famous mineral localities: Furnace Creek, Death Valley, California: American Mineralogist: 9: 10; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 264.
          • Zabriskie Point
www.mineralsocal.org
      • Furnace Creek Mining District (Furnace Creek Borate Mining District)
        • Ryan
Schaller, Waldemar Theodore (1916b), Inyoite and meyerhofferite, two new calcium borates: USGS Bulletin 610: 35; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 228.
Am Min (1959) 44:911-919
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.
        • Twenty Mule Team Canyon
Erd, R.C., J.F. McAllister & H. Almond (1959), Gowerite, a new hydrous calcium borate from Death Valley, California: American Mineralogist: 44: 911-919.
    • Kern Co.
www.mineralsocal.org
Cal Div of Mines & Geology "Mineral Information Service" V. 22 N. 10 Oct 1969
          • U.S. Borax Mine (Pacific West Coast Borax; Kramer Mine; Baker Mine)
Pemberton, H. Earl, Wm. Moller, Jack Schwartz & George Masimer (1960), The minerals of Boron, California, 40 pp. (Published by the Mineral Research Soc. of California, Montebello, CA): 27; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 265; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 246.
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2020, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: December 2, 2020 12:31:20 Page generated: November 28, 2020 14:55:30
Go to top of page