Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Brandholzite

This page is currently not sponsored. Click here to sponsor this page.
Big Photo

Krížnica, Pernek, Malacky Co., Bratislava Region, Slovakia
© Martin Števko

Show Brandholzite Photos (8)



Formula:
Mg[Sb(OH)
 
6
]
 
2
 · 6H
 
2
O
System:TrigonalColour:Colourless
Lustre:VitreousHardness:2 - 3
Name:Named after the type locality - the former mining district of Brandholz-Goldkronach, Fichtelgebirge, Germany.
This page provides mineralogical data about Brandholzite.

Classification of Brandholzite

IMA status:Approved 1998
Strunz 8th edition ID:4/F.04-15
Nickel-Strunz 10th (pending) edition ID:4.FH.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
H : Hydroxides with H2O +- (OH); insular octahedra
mindat.org URL:http://www.mindat.org/min-7046.html
Please feel free to link to this page.

Type Occurrence of Brandholzite

Type Locality:Brandholz - Goldkronach District, Fichtelgebirge, Franconia, Bavaria, Germany

Physical Properties of Brandholzite

Lustre:Vitreous
Colour:Colourless
Hardness (Mohs):2 - 3

Crystallography of Brandholzite

Crystal System:Trigonal
Class (H-M):3 - Pyramidal
Space Group:P3
Cell Parameters:a = 16.119Å, c = 9.868Å
Ratio:a:c = 1 : 0.612
Unit Cell Volume:V 2,220.42 ų (Calculated from Unit Cell)

Optical Data of Brandholzite

Type:Uniaxial (-)
RI values: nω = 1.570 nε = 1.569
Maximum Birefringence:δ = 0.001

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low

Chemical Properties of Brandholzite

Formula:
Mg[Sb(OH)
 
6
]
 
2
 · 6H
 
2
O
Essential elements:H, Mg, O, Sb
All elements listed in formula:H, Mg, O, Sb

Relationship of Brandholzite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.FH.05Bottinoite
Ni
2+
 
[Sb(OH)
 
6
]
 
2
 · 6H
 
2
O

Other Names for Brandholzite

Synonyms:
IMA1998-017
Other Languages:
German:Brandholzit
Russian:Брандхольцит
Spanish:Brandholzita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Brandholzite

Reference List:

- +
Friedrich, A., Wildner, M. and Tillmanns, E. (1998): Strukturuntersuchung und Kristallchemie des neuen Minerals Mg(H2O)6[Sb(OH)6]2 sowie einiger isotyper synthetischer Antimonate MeII(H2O,NH3)6[Sb(OH)6]2 (MeII = Mg, Co, Cu). Mitt. Österr. Mineral. Ges.143, 276-278.

Friedrich, A., Wildner, M., Tillmanns, E. & Merz, P. L. (2000): Crystal chemistry of the new mineral brandholzite, Mg(H2O)6[Sb(OH)6]2, and of the synthetic analogues M2+(H2O)6[Sb(OH)6]2 (M2+ = Mg, Co). American Mineralogist: 85, 593-599.

Friedrich, A., Mazzi, F., Wildner, M. & Tillmanns, E. (2003): Isotypism of Co(H2O)6[Sb(OH)6]2 with brandholzite and bottinoite. American Mineralogist 88, 462-463.

Sejkora, J., Ozdín, D., Ďuďa, R. (2010): The supergene mineral association with brandholzite from Pernek, Malé Karpaty Mountains, Slovak Republic. Journal of Geosciences, 55, 149-160. [http://www.jgeosci.org/content/jgeosci.064_2010_2_sejkora.pdf]

Internet Links for Brandholzite

Search Engines:
  • Look for Brandholzite on Google
  • Look for Brandholzite images on Google
    • External Links:
  • Look for Brandholzite on Webmineral
  • Look for Brandholzite on Athena Mineralogy
  • Look for Brandholzite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Brandholzite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • webminerals
  • Search for minerals at Heliodor
  • Buy RARE Minerals from Rocks of Africa
  • Search for - Brandholzite - on e-Rocks Mineral Sales & Auctions
  • Fine Minerals from Weinrich Minerals, Inc.
  • Fabre Minerals - search for Brandholzite specimens
  • SpiriferMinerals.com - high quality low prices
  • Rare and Unusual minerals at Mineralogical Research Company
  • Search for Brandholzite from all mineral dealers at minfind.com
  • Find Brandholzite on www.crystalclassics.co.uk
  • Top quality minerals from Kristalle of California
  • Edwards Minerals - Fine Specimens
    • Jobs:
  • Mining & Geology Jobs

    • Localities for Brandholzite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? 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.
    Germany
     
    • Bavaria
      • Franconia
        • Fichtelgebirge
    		[Mitt.d.Österr.Min.Ges.(1998) 143, 276-278; MinRec 32:210]
    Meier, S. (1995). Mineralfundstellen im Fichtelgebirge. Eigenverlag, Marktredwitz, 220 p.
    Luxembourg
     
    • Goesdorf commune
      • Goesdorf
    		Bakker, R. and Kolitsch, U. (2010): Die Antimon-Grube von Goesdorf in Luxemburg: das weltweit dritte Vorkommen von Brandholzit. Lapis 35 (6), 30; 43-45; 70. (in German); [Filella M., Philippo S., Belzile N., Chen Y. and Quentel F. (2009) Natural attenuation processes applying to antimony: A study in the abandoned antimony mine in Goesdorf, Luxembourg - Science of the total environment (in press)]
    Slovakia
     
    • Bratislava Region
      • Malacky Co.
        • Pernek
    		Frost, R. L., Čejka, J., Sejkora, J., Ozdín, D., Bahfenne, S., Keeffe, E. C. (2009): Raman spectroscopic study of the antimonite mineral brandholzite Mg[Sb2(OH)12]•6H2O. J. Raman Spectroscopy, 40, 11, 1907-1910. Sejkora S., Ozdín D., Vitáloš J., Tuček P., Ďuďa R., 2004: Schafarzikit von Pernek, Revier Pezinok (Slowakei). Lapis, 29, 12, 27-36.; Sejkora, J., Ozdín, D., Ďuďa, R. (2010): The supergene mineral association with brandholzite from Pernek, Malé Karpaty Mountains, Slovak Republic. Journal of Geosciences, 55 149-160.
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: 28th Aug 2011 06:45:41
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds