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⇱ Hechtsbergite: Mineral information, data and localities.

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Hechtsbergite

A valid IMA mineral species
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About HechtsbergiteHide

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Formula:
Bi2(VO4)O(OH)
Colour:
Brown
Lustre:
Adamantine
Hardness:
4½
Specific Gravity:
6.87 (Calculated)
Crystal System:
Monoclinic
Name:
Named after the Hechtsberg quarry, Germany, the type locality.

Unique IdentifiersHide

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Mindat ID:
6986
Long-form identifier:
mindat:1:1:6986:7

IMA Classification of HechtsbergiteHide

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Approved
IMA Formula:
Bi2O(VO4)(OH)
First published:
1997

Classification of HechtsbergiteHide

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8.BO.15

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
O : With only large cations, (OH, etc.):RO4 about 1:1

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
HebIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of HechtsbergiteHide

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Adamantine
Transparency:
Transparent, Translucent
Colour:
Brown
Streak:
Yellow
Hardness:
4½ on Mohs scale
Fracture:
Conchoidal
Density:
6.87 g/cm3 (Calculated)

Optical Data of HechtsbergiteHide

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Type:
Biaxial (+)
RI values:
nα = 2.26(2) nβ = 2.27 nγ = 2.30(2)
2V:
Measured: 50° (5)
Max. Birefringence:
δ = 0.040
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.

Surface Relief:
Moderate
Dispersion:
relatively strong

Chemistry of HechtsbergiteHide

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Mindat Formula:
Bi2(VO4)O(OH)
Element Weights:
Element% weight
Bi73.857 %
O16.963 %
V9.002 %
H0.178 %

Calculated from ideal end-member formula.

Crystallography of HechtsbergiteHide

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Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 6.971(1) Å, b = 7.535(1) Å, c = 10.881(1) Å
β = 107.00(1)°
Ratio:
a:b:c = 0.925 : 1 : 1.444
Unit Cell V:
546.57 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Mainly {111}, with subordinate {112}, {113}, {101}, {102}, and {302}.
Comment:
Single-crystal data.

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014896HechtsbergiteKrause W, Bernhardt H J, Blass G, Effenberger H, Graf H W (1997) Hechtsbergite, Bi2O(OH)(VO4), a new mineral from the Black Forest, Germany Neues Jahrbuch fur Mineralogie, Monatshefte 1997 271-2871997Hechtsberg quarry, Hausach, Black Forest, Germany0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:
d-spacingIntensity
4.279 Å(41)
3.267 Å(100)
3.150 Å(63)
2.734 Å(35)
2.549 Å(27)
2.133 Å(27)
2.036 Å(29)

Geological EnvironmentHide

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Paragenetic Mode(s):

Type Occurrence of HechtsbergiteHide

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General Appearance of Type Material:
Euhedral brown crystals and aggregates to 0.2 mm.
Place of Conservation of Type Material:
Institut für Mineralogie, Ruhr-Universität Bochum, Germany.
Geological Setting of Type Material:
Gneiss

Synonyms of HechtsbergiteHide

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Other Language Names for HechtsbergiteHide

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Relationship of Hechtsbergite to other SpeciesHide

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Other Members of Atelestite Group:
AtelestiteBi2(AsO4)O(OH)Mon. 2/m : P21/b
SmrkoveciteBi2(PO4)O(OH)Mon. 2/m : P21/b

Common AssociatesHide

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Associations Based on Photo Data:
9 photos of Hechtsbergite associated with ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
6 photos of Hechtsbergite associated with EulytineBi4(SiO4)3
4 photos of Hechtsbergite associated with NamibiteCu(BiO)2(VO4)(OH)
2 photos of Hechtsbergite associated with QuartzSiO2
2 photos of Hechtsbergite associated with AtelestiteBi2(AsO4)O(OH)
1 photo of Hechtsbergite associated with BeyeriteCa(BiO)2(CO3)2

Related Minerals - Strunz-mindat GroupingHide

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8.BO.AriegilatiteBaCa12(SiO4)4(PO4)2F2OTrig. 3m(32/m) : R3m
8.BO.AravaiteBa2Ca18(SiO4)6(PO4)3(CO3)F3OTrig. 3m(32/m) : R3m
8.BO.TheuerdankiteAg3AsO4Iso. 43m : P43n
8.BO.05NacaphiteNa2Ca(PO4)FMon. 2/m : P21/b
8.BO.10PetitjeaniteBi3(PO4)2O(OH)Tric. 1 : P1
8.BO.10SchumacheriteBi3(VO4)2O(OH)Tric. 1 : P1
8.BO.10PreisingeriteBi3(AsO4)2O(OH)Tric. 1 : P1
8.BO.15SmrkoveciteBi2(PO4)O(OH)Mon. 2/m : P21/b
8.BO.15AtelestiteBi2(AsO4)O(OH)Mon. 2/m : P21/b
8.BO.20SahlinitePb14(AsO4)2O9Cl4Mon. 2/m : B2/b
8.BO.20KombatitePb14(VO4)2O9Cl4Mon. 2/m : B2/b
8.BO.25HeneuiteCaMg5(CO3)(PO4)3(OH)Tric. 1 : P1
8.BO.30NefedoviteNa5Ca4(PO4)4FTric.
8.BO.35Kuznetsovite[Hg2]2+Hg2+[AsO4]ClIso. 23 : P213
8.BO.40Artsmithite[Hg2]2+2Al(PO4)1.74(OH)1.78Mon. 2/m : B2/b
8.BO.45SchlegeliteBi7(AsO4)3(MoO4)2O4Orth. mmm(2/m2/m2/m)
8.BO.50Hereroite[Pb32(O,◻)21](AsO4)2[(Si,As,V,Mo)O4]2Cl10Mon. 2/m : B2/b
8.BO.50Erikjonssonite(Pb32O21)[(V,Si,Mo,As)O4]4Cl9Mon. 2/m : B2/b
8.BO.55Rudabányaite(Ag2Hg2)(AsO4)ClIso. 43m : F43c
8.BO.60SegerstromiteCa3(As5+O4)2[As3+(OH)3]2Iso. 23 : I213
8.BO.65WiklunditePb2(Mn2+,Zn)3(Fe3+,Mn2+)2(Mn2+,Mg)19(As3+O3)2[(Si,As5+)O4]6(OH)18Cl6Trig. 3m(32/m) : R3c

Fluorescence of HechtsbergiteHide

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Not fluorescent

Other InformationHide

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Notes:
Soluble in dilute HCl
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for HechtsbergiteHide

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mindat.org URL:
https://www.mindat.org/min-6986.html
Please feel free to link to this page.

References for HechtsbergiteHide

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Reference List:

Localities for HechtsbergiteHide

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Showing 8 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 👁 Image
symbol to view information about a locality. The 👁 Image
symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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👁 Image
- This locality has map coordinates listed. 👁 Image
- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species. 👁 Image
- 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Australia
  • Victoria
    • Towong Shire
      • Dartmouth
        • Morass Creek gorge
Museum Victoria collection
Brazil
  • Minas Gerais
    • Conceição do Mato Dentro
      • São José de Brejaúba
Burns et al. (2000)
Czech Republic
  • Karlovy Vary Region
    • Sokolov District
      • Březová
Řídkošil et al. (1996)
Germany (TL)
  • Baden-Württemberg
    • Freiburg Region
      • Ortenaukreis
        • Hausach
          • Hausach
Krause et al. (1997) +1 other reference
        • Oberwolfach
50. (in German) +1 other reference
  • Bavaria
    • Upper Palatinate
      • Neustadt an der Waldnaab District
        • Windischeschenbach
          • Oberbaumühle
Schwarzmeier et al. (2015) +2 other references
Japan
  • Fukuoka Prefecture
    • Fukuoka City
Uehara et al. (2013)
Spain
  • Andalusia
    • Córdoba
      • Cardeña
        • Azuel
Calvo Rebollar et al. (2022)
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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