Dreyerite
A valid IMA mineral species
This page kindly sponsored by Michael Krause
About Dreyerite
Formula:
Bi(VO4)
Colour:
Orange-yellow, brownish-yellow
Lustre:
Adamantine
Hardness:
2 - 3
Specific Gravity:
6.25 (Calculated)
Crystal System:
Tetragonal
Name:
Named after Gerhard Dreyer (23 June 1944, Landstuhl, Germany - 31 August 1978), Assistant Professor, Johannes Guterberg University, Mainz, Germany, who discovered the mineral.
Polymorph of:
The tetragonal polymorph of Pucherite and Clinobisvanite. The rarest of the three polymorphs of BiVO4.
Unique Identifiers
Mindat ID:
1320
Long-form identifier:
mindat:1:1:1320:4
GUID
(UUID V4):
(UUID V4):
dc7950f1-1900-49a7-875e-04062557b9ae
IMA Classification of Dreyerite
Approved
Approval year:
1978
First published:
1981
Classification of Dreyerite
8.AD.35
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
38.4.8.1
38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
21.3.12
21 : Vanadates (and vanadates with arsenate or phosphate)
3 : Vanadates of Al, rare earths, Pb, V or Bi
21 : Vanadates (and vanadates with arsenate or phosphate)
3 : Vanadates of Al, rare earths, Pb, V or Bi
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Dye | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Dreyerite
Adamantine
Transparency:
Translucent
Colour:
Orange-yellow, brownish-yellow
Streak:
Yellow
Hardness:
2 - 3 on Mohs scale
Density:
6.25 g/cm3 (Calculated)
Optical Data of Dreyerite
Type:
Uniaxial (+)
Pleochroism:
Visible
Comments:
O = bright yellow
E = brownish yellow
E = brownish yellow
Comments:
Refractive indicies > 2
Chemistry of Dreyerite
Mindat Formula:
Bi(VO4)
Elements listed:
Crystallography of Dreyerite
Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
I41/amd
Cell Parameters:
a = 7.303(3) Å, c = 6.584(3) Å
Ratio:
a:c = 1 : 0.902
Unit Cell V:
351.15 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Platy crystals to 0.5 mm.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0014769 | Dreyerite | Dreyer G, Tillmanns E (1981) Dreyerite: ein naturliches, tetragonales wismutvanadat von Hirschhorn/Pfalz Neues Jahrbuch fur Mineralogie, Monatshefte 1981 151-154 | 1981 | Hirschhorn, Pfalz, Germany | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
3.656 Å | (100) |
2.739 Å | (60) |
4.85 Å | (40) |
1.878 Å | (40) |
2.918 Å | (20) |
2.280 Å | (20) |
2.583 Å | (15) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 3a: Earth’s earliest Hadean crust | >4.50 |
9 : Lava/xenolith minerals (hornfels, sanidinite facies) | |
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere | <0.6 |
53 : Other minerals with taphonomic origins | <0.4 |
Geological Setting:
Rhyolite tuffs.
Type Occurrence of Dreyerite
General Appearance of Type Material:
Plates parallel (001), 20-50 µm thick, and up to 0.5 mm in diameter.
Place of Conservation of Type Material:
Johannes Gutenberg University, Mainz, Germany.
National Museum of Natural History (Smithsonian), Washington, D.C., USA, 159922.
National Museum of Natural History (Smithsonian), Washington, D.C., USA, 159922.
Geological Setting of Type Material:
Rhyolitic ash tuff.
Associated Minerals at Type Locality:
Reference:
Dreyer, G., Tillmanns, E. (1981): Dreyerite: natural, tetragonal bismuth vanadate from Hirschhorn/Pfalz. Neues Jahrbuch für Mineralogie, Monatshefte, 1981, 151-154.
Synonyms of Dreyerite
Other Language Names for Dreyerite
Common Associates
Related Minerals - Strunz-mindat Grouping
8.AD. | Keplerite | Ca9(Ca0.5◻0.5)Mg(PO4)7 |
8.AD. | Deynekoite | Ca9◻Fe3+(PO4)7 |
8.AD. | Mazorite | Ba3(PO4)2 |
8.AD. | Monazite-(Gd) | Gd(PO4) |
8.AD.05 | Nahpoite | Na2(PO3OH) |
8.AD.10 | Monetite | Ca(PO3OH) |
8.AD.10 | Weilite | Ca(HAsO4) |
8.AD.10 | Švenekite | Ca(H2AsO4)2 |
8.AD.15 | Archerite | (K,NH4)(H2PO4) |
8.AD.15 | Biphosphammite | NH4(H2PO4) |
8.AD.20 | Phosphammite | (NH4)2(PO3OH) |
8.AD.25 | Buchwaldite | NaCa(PO4) |
8.AD.30 | Schultenite | Pb(HAsO4) |
8.AD.35 | Chernovite-(Y) | Y(AsO4) |
8.AD.35 | Wakefieldite-(Ce) | Ce(VO4) |
8.AD.35 | Wakefieldite-(Y) | Y(VO4) |
8.AD.35 | Xenotime-(Y) | Y(PO4) |
8.AD.35 | Chernovite-(Ce) | (Ce,Y)(AsO4) |
8.AD.35 | Pretulite | Sc(PO4) |
8.AD.35 | Xenotime-(Yb) | Yb(PO4) |
8.AD.35 | Wakefieldite-(La) | La(VO4) |
8.AD.35 | Wakefieldite-(Nd) | Nd(VO4) |
8.AD.35 | Xenotime-(Gd) | Gd(PO4) |
8.AD.40 | Pucherite | Bi(VO4) |
8.AD.45 | Ximengite | Bi(PO4) |
8.AD.50 | Gasparite-(Ce) | Ce(AsO4) |
8.AD.50 | Monazite-(Ce) | Ce(PO4) |
8.AD.50 | Monazite-(La) | La(PO4) |
8.AD.50 | Monazite-(Nd) | Nd(PO4) |
8.AD.50 | Rooseveltite | Bi(AsO4) |
8.AD.50 | Cheralite | CaTh(PO4)2 |
8.AD.50 | Monazite-(Sm) | Sm(PO4) |
8.AD.50 | UM2005-35-VO:CaFePSiTh | (Th,Ca)(VO4,SiO4,PO4) |
8.AD.50 | Gasparite-(La) | La(AsO4) |
8.AD.55 | Tetrarooseveltite | Bi(AsO4) |
8.AD.60 | Chursinite | [Hg2]2+Hg2+2[AsO4]2 |
8.AD.65 | Clinobisvanite | Bi(VO4) |
8.AD.70 | Gurimite | Ba3(VO4)2 |
8.AD.75 | Picaite | NaCa[AsO3OH][AsO2(OH)2] |
Other Information
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 Dreyerite
mindat.org URL:
https://www.mindat.org/min-1320.html
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References for Dreyerite
Reference List:
Frost, Ray L., Henry, Dermot A., Weier, Matt L., Martens, Wayde (2006) Raman spectroscopy of three polymorphs of BiVO4: clinobisvanite, dreyerite and pucherite, with comparisons to (VO4)3-bearing minerals: namibite, pottsite and schumacherite. Journal of Raman Spectroscopy, 37 (7). 722-732 doi:10.1002/jrs.1499
Localities for Dreyerite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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 (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Australia | |
| Collier et al. (2002) +1 other reference |
Germany | |
| Kolitsch et al. (2005) +1 other reference |
| Dreyer +2 other references |
| Belendorff (2009) |
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Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany