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David F. Wiser
Yellowish white, pink-brown, light red
Specific Gravity:
3.42 (Calculated)
Crystal System:
Named by Haidinger in 1845 for David Friedrich Wiser (1802, Switzerland - 21 March 1878, Zurich, Switzerland), iron trader and mineralogical chemist, who had discovered the mineral in 1842. He was able to retire from his profession at the age of 38 and spent the rest of his life focused on minerals. He built what was likely the finest collection of Swiss minerals in the 19th century, and was awarded an honorary Ph.D. from Zurich University.
This page provides mineralogical data about Wiserite.

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Classification of WiseriteHide

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

B : Diborates
A : Neso-diborates with double triangles B2(O,OH)5; 2(2D); 2(2D) + OH, etc.

1 : Miscellaneous

9 : Borates
7 : Borates of Mn

Physical Properties of WiseriteHide

Yellowish white, pink-brown, light red
2½ on Mohs scale
3.42 g/cm3 (Calculated)

Optical Data of WiseriteHide

Uniaxial (-)
RI values:
nω = 1.751 - 1.760 nε = 1.700 - 1.717
Max Birefringence:
δ = 0.051
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of WiseriteHide

IMA Formula:
Mn2+14(B2O5)4(OH)8 · (Si,Mg)(O,OH)4Cl
Common Impurities:

Crystallography of WiseriteHide

Crystal System:
Cell Parameters:
a = 20.19 Å, c = 2.81 Å
a:c = 1 : 0.139
Unit Cell V:
1,145.46 ų (Calculated from Unit Cell)
Fibrous, asbestiform masses

Type Occurrence of WiseriteHide

General Appearance of Type Material:
Fibrous masses, intimately intergrown with sussexite
Geological Setting of Type Material:
In veins of rhodochrosite-hausmannite ore
Associated Minerals at Type Locality:

Other Language Names for WiseriteHide


Common AssociatesHide

Associated Minerals Based on Photo Data:
Galaxite4 photos of Wiserite associated with Galaxite on
Jacobsite4 photos of Wiserite associated with Jacobsite on
Sussexite2 photos of Wiserite associated with Sussexite on

Related Minerals - Nickel-Strunz GroupingHide

6.BA.15SussexiteMn2+BO2(OH)Orth. 2 2 2 : P21 21 2

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

9.7.4SussexiteMn2+BO2(OH)Orth. 2 2 2 : P21 21 2
9.7.9BlatteriteSb5+(Mn3+,Fe3+)9(Mn2+,Mg)35(BO3)16O32Orth. mmm (2/m 2/m 2/m) : Pnnm
9.7.10TusioniteMn2+Sn4+[BO3]2Trig. 3 : R3

Other InformationHide

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 WiseriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Wiser, D.F. (1842) Über die in den Eisen - Gruben am Gonzen bei Sargans im Kanton St. Gallen vorkommenden Mineralien, nebst einigen Bemerkungen vermischten Inhaltes. Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefakten-Kunde: 1842: 505-527.
Haidinger, W. (1845) Zweite Klasse: Geogenide. I. Ordnung. Haloide. Wiserit.. in Handbuch der Bestimmenden Mineralogie, Bei Braumüller and Seidel (Wien): 492-498.
Epprecht, W.T. (1946) Beitr. Geol. Schweiz., Geotecn. Ser. Lief.: 24.
Epprecht, W.T. (1946) Schweizerische mineralogische und petrographische Mitteilungen, Frauenfeld: 26: 19.
Epprecht, W.T. (1946) Eisen- und Manganhydroxyde. in Die Eisen- und Manganerze des Gonzen, Aschmann & Scheller AG., Buchdruckerei zur Froschau (Zürich (Schweiz)): 24-29.
Fleischer, M. (1947) New mineral names. American Mineralogist: 32: 483-485.
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: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 245.
Epprecht, W.T., Schaller, W.T., Vlisidis, A.C. (1959) Über Wiserit, Sussexit und ein weiteres Mineral aus den Manganerzen vom Gonzen (bei Sargans). Schweizerische Mineralogische und Petrographische Mitteilungen: 39: 85-104.
Fleischer, M. (1960) New mineral names. American Mineralogist: 45: 252-258.
Pertlik, F., Dunn, P.J. (1989) Crystal structure of wiserite. American Mineralogist: 74: 1351-1354.
Dunn, P.J., Francis, C.A., Ramik, R.A., Nelen, J.A., Innes, J. (1989) Wiserite, an occurrence at the Kombat mine in Namibia, and new data. American Mineralogist: 74: 1374-1376.
Dunn, P.J. (1991) Rare minerals of the Kombat mine. The Mineralogical Record: 22: 421-425.
Strunz, H. (1997) Classification of borate minerals. European Journal of Mineralogy: 9(1): 225-232.
Stalder, H.A., Wagner, A., Graeser, S., Stuker, P. (1998) Mineralienlexikon der Schweiz. Verlag Wepf & Co. (Basel): p. 430.
Grew, E.S., Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).
Roth, P. (2007) Wiserite. in Minerals first discovered in Switzerland and minerals named after Swiss individuals, Kristallografik Verlag (Achberg Germany): 156-157.

Internet Links for WiseriteHide

Localities for WiseriteHide

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.
  • Honshu Island
    • Chubu Region
      • Fukui Prefecture
        • Mikata-kaminaka-gun
          • Wakasa-cho
加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.
    • Kanto Region
      • Gunma Prefecture
        • Kiryuu City
加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.
加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.
        • Midori City
          • Seta
加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.
加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.
      • Saitama Prefecture
        • Chichibu City
          • Urayama
K. Nishikubo, T. Yamada, A. Harada, M. Takizawa, K. Tange, Y. Kosuge, R. Miyawaki, and S. Matsubara (2005) "Rambergite from the Hirogawara mine, Urayama, Chichibu City, Saitama Prefecture, Japan"
      • Tochigi Prefecture
Fukuoka, M. (1981) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 24, #4, 207-252.; 加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.
加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.
        • Kanuma City
Akira Kato (undated manuscript): Country rock and Minerals of the Kaso mine, Kanuma City, Tochigi Prefecture. (in japanese); 加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.
      • Tokyo Metropolis
        • Nishi-Tama-gun
          • Okutama-cho
加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.
photo in: Koubutsu Doshikai (2017) Kanto-to Shuhen-no Koubutsu (279pp).
    • Kinki Region
      • Kyoto Prefecture
        • Kyoto City
          • Ukyou-ku
加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.
      • Shiga prefecture
        • Gamou-gun
Am Min 74: pp 1374-1376; Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
  • Otjozondjupa Region
    • Grootfontein District
      • Kombat
Dunn, P.J. (1991), Rare minerals of the Kombat Mine, Mineralogical Record: 22(6): 421-425. American Mineralogist: 74: 1374-1376.
Switzerland (TL)
  • St Gallen
    • Alvier Group
      • Sargans
Haidinger, W. (1845) : Handb. bestimm. Min.: 493; 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: 245.
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