Gottlobite
A valid IMA mineral species
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About Gottlobite
Formula:
CaMg(VO4)(OH)
Colour:
Orange to orange-brown
Lustre:
Adamantine, Vitreous
Hardness:
4½
Specific Gravity:
3.46 (Calculated)
Crystal System:
Orthorhombic
Member of:
Name:
For the type locality at the Glücksstern Mine, Gottlob Hill, Friedrichroda, Thuringian Forest, Thuringia, Germany.
Isostructural with:
Adelite-Desclozite Group. The vanadate (vanadium) analogue of Adelite. The Ca analogue of plumbogottlobite.
Unique Identifiers
Mindat ID:
7069
Long-form identifier:
mindat:1:1:7069:6
IMA Classification of Gottlobite
Approved
IMA Formula:
CaMg(V5+O4)(OH)
Approval year:
1998
First published:
2000
Classification of Gottlobite
8.BH.35
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
H : With medium-sized and large cations, (OH,etc.):RO4 = 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
H : With medium-sized and large cations, (OH,etc.):RO4 = 1:1
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 for Standard |
|---|---|---|
| Got | 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 Gottlobite
Adamantine, Vitreous
Transparency:
Transparent
Colour:
Orange to orange-brown
Streak:
Brownish white
Hardness:
4½ on Mohs scale
Cleavage:
None Observed
Fracture:
Irregular/Uneven, Conchoidal
Density:
3.46 g/cm3 (Calculated)
Comment:
3.41 and 3.58 for highest and lowest V content
Optical Data of Gottlobite
Type:
Biaxial (-)
RI values:
nα = 1.797(4) nβ = 1.805 - 1.815 nγ = 1.828(5)
2V:
Measured: Very large° , Calculated: 62° to 80°
Max. Birefringence:
δ = 0.031
Based on recorded range of RI values above.
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. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
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. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate
Dispersion:
r > v medium
Pleochroism:
Visible
Comments:
X = orange-brown, Y = pale yellowish brown, Z = orange-brown.
Comments:
Absorption: Z ≥ X > Y.
Chemistry of Gottlobite
Mindat Formula:
CaMg(VO4)(OH)
Element Weights:
Crystallography of Gottlobite
Crystal System:
Orthorhombic
Class (H-M):
222 - Disphenoidal
Space Group:
P212121
Cell Parameters:
a = 7.501 Å, b = 9.01 Å, c = 5.941 Å
Ratio:
a:b:c = 0.833 : 1 : 0.659
Unit Cell V:
401.5 ų
Z:
4
Morphology:
Forms: {010} dominant, {110}, {011}, {111}, {111} and {101}.
Twinning:
None observed.
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) |
|---|---|---|---|---|---|---|---|
| 0014906 | Gottlobite | Witzke T, Steins M, Doering T, Kolitsch U (2000) Gottlobite, CaMg(VO4,AsO4)(OH), a new mineral from Friedrichroda, Thuringia, Germany Neues Jahrbuch fur Mineralogie, Monatshefte 2000 444-454 | 2000 | Glucksstern min, Gottlob hill, Friedrichroda, Thuringia, Germany | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.496 Å | (72) |
| 4.139 Å | (32) |
| 3.170 Å | (100) |
| 2.785 Å | (30) |
| 2.639 Å | (27) |
| 2.523 Å | (30) |
| 1.614 Å | (41) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47e : [Vanadates, chromates, manganates] |
Type Occurrence of Gottlobite
General Appearance of Type Material:
Equant to tabular crystals and equant grains (up to 0.5 mm).
Place of Conservation of Type Material:
Mineralogical Collection, Bergakademie, Freiberg, Germany, number 78907.
Geological Setting of Type Material:
Hydrothermal barite veins that cut conglomerate.
Associated Minerals at Type Locality:
Synonyms of Gottlobite
Other Language Names for Gottlobite
Relationship of Gottlobite to other Species
Member of:
Other Members of Adelite-Descloizite Group:
| Adelite | CaMg(AsO4)(OH) | Orth. 222 : P212121 |
| Arsendescloizite | PbZn(AsO4)(OH) | Orth. 222 : P212121 |
| Austinite | CaZn(AsO4)(OH) | Orth. 222 : P212121 |
| Čechite | PbFe2+(VO4)(OH) | Orth. mmm(2/m2/m2/m) |
| Cobaltaustinite | CaCo(AsO4)(OH) | Orth. 222 : P212121 |
| Conichalcite | CaCu(AsO4)(OH) | Orth. 222 : P212121 |
| Descloizite | PbZn(VO4)(OH) | Orth. mmm(2/m2/m2/m) : Pnma |
| Duftite | PbCu(AsO4)(OH) | Orth. 222 : P212121 |
| 'Duftite-alpha' | PbCu(AsO4)(OH) | |
| Hermannroseite | CaCu(PO4)(OH) | Orth. 222 : P212121 |
| Mottramite | PbCu(VO4)(OH) | Orth. mmm(2/m2/m2/m) : Pnma |
| Nickelaustinite | CaNi(AsO4)(OH) | Orth. 222 : P212121 |
| Plumbogottlobite | PbMg(VO4)(OH) | Orth. mmm(2/m2/m2/m) : Pnma |
| Pyrobelonite | PbMn2+(VO4)(OH) | Orth. mmm(2/m2/m2/m) : Pnma |
| Tangeite | CaCu(VO4)(OH) | Orth. 222 : P212121 |
| 'Unnamed (Pb-analogue of Nickelaustinite)' | PbNi(AsO4)(OH) | |
| Vuagnatite | CaAl(SiO4)(OH) | Orth. 222 : P212121 |
Forms a series with:
Common Associates
Associations Based on Photo Data:
| 3 photos of Gottlobite associated with Hausmannite | Mn2+Mn3+2O4 |
| 2 photos of Gottlobite associated with Quartz | SiO2 |
Related Minerals - Strunz-mindat Grouping
| 8.BH. | Peterchinite | Zn3Zn2(OH)6As[O3(OH)3] |
| 8.BH. | Reznitskyite | CaMg(VO4)F |
| 8.BH. | Plumbogottlobite | PbMg(VO4)(OH) |
| 8.BH. | Cuprozheshengite | Pb4CuZn2(AsO4)2(PO4)2(OH)2 |
| 8.BH. | Zheshengite | Pb4ZnZn2(AsO4)2(PO4)2(OH)2 |
| 8.BH. | Crimsonite | PbFe3+2(PO4)2(OH)2 |
| 8.BH.05 | Thadeuite | Ca(Mg,Fe2+)3(PO4)2(OH,F)2 |
| 8.BH.10 | Panasqueiraite | CaMg(PO4)(OH) |
| 8.BH.10 | Isokite | CaMg(PO4)F |
| 8.BH.10 | Lacroixite | NaAl(PO4)F |
| 8.BH.10 | Arsenatrotitanite | NaTi(AsO4)O |
| 8.BH.10 | Maxwellite | NaFe3+(AsO4)F |
| 8.BH.10 | Durangite | NaAl(AsO4)F |
| 8.BH.10 | Kononovite | NaMg(SO4)F |
| 8.BH.15 | Drugmanite | Pb2Fe3+(PO4)(PO3OH)(OH)2 |
| 8.BH.20 | Nigelcookite | PbFe2+2V3+2(PO4)3(OH)3 |
| 8.BH.20 | Plumbojohntomaite | PbFe2+2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Cirrolite | Ca3Al2(PO4)3(OH)3 (?) |
| 8.BH.20 | Penikisite | Ba(Mg,Fe2+,Ca)2Al2(PO4)3(OH)3 |
| 8.BH.20 | Perloffite | Ba(Mn2+,Fe2+)2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Bjarebyite Group | |
| 8.BH.20 | Strontioperloffite | SrMn2+2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Plumboperloffite | PbMn2+2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Johntomaite | BaFe2+2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Bjarebyite | (Ba,Sr)(Mn2+,Fe2+,Mg)2Al2(PO4)3(OH)3 |
| 8.BH.20 | Kulanite | Ba(Fe2+,Mn2+,Mg)2(Al,Fe3+)2(PO4)3(OH)3 |
| 8.BH.25 | Bertossaite | Li2CaAl4(PO4)4(OH)4 |
| 8.BH.25 | Natropalermoite | Na2SrAl4(PO4)4(OH)4 |
| 8.BH.25 | Palermoite | Li2SrAl4(PO4)4(OH)4 |
| 8.BH.30 | Sewardite | CaFe3+2(AsO4)2(OH)2 |
| 8.BH.30 | Carminite | PbFe3+2(AsO4)2(OH)2 |
| 8.BH.35 | Adelite | CaMg(AsO4)(OH) |
| 8.BH.35 | Duftite | PbCu(AsO4)(OH) |
| 8.BH.35 | Cobaltaustinite | CaCo(AsO4)(OH) |
| 8.BH.35 | Nickelaustinite | CaNi(AsO4)(OH) |
| 8.BH.35 | Gabrielsonite | PbFe3+(As3+O3)O |
| 8.BH.35 | Conichalcite | CaCu(AsO4)(OH) |
| 8.BH.35 | Arsendescloizite | PbZn(AsO4)(OH) |
| 8.BH.35 | 'Duftite-alpha' | PbCu(AsO4)(OH) |
| 8.BH.35 | Austinite | CaZn(AsO4)(OH) |
| 8.BH.35 | Hermannroseite | CaCu(PO4)(OH) |
| 8.BH.35 | Tangeite | CaCu(VO4)(OH) |
| 8.BH.40 | Čechite | PbFe2+(VO4)(OH) |
| 8.BH.40 | Khorixasite | (Bi0.67◻0.33)Cu(VO4)(OH) |
| 8.BH.40 | Mottramite | PbCu(VO4)(OH) |
| 8.BH.40 | Descloizite | PbZn(VO4)(OH) |
| 8.BH.40 | Pyrobelonite | PbMn2+(VO4)(OH) |
| 8.BH.45 | Bayldonite | PbCu3(AsO4)2(OH)2 |
| 8.BH.45 | Vésigniéite | BaCu3(VO4)2(OH)2 |
| 8.BH.50 | Paganoite | NiBi(AsO4)O |
| 8.BH.55 | Jagowerite | BaAl2(PO4)2(OH)2 |
| 8.BH.55 | Harrisonite | Ca(Fe2+,Mg)6(PO4)2(SiO4)2 |
| 8.BH.60 | Attakolite | CaMn2+Al4(SiO3OH)(PO4)3(OH)4 |
| 8.BH.65 | Leningradite | PbCu3(VO4)2Cl |
| 8.BH.70 | Katiarsite | KTiO(AsO4) |
| 8.BH.70 | Yurgensonite | K2SnTiO2(AsO4)2 |
| 8.BH.75 | Melanarsite | K3Cu7Fe3+O4(AsO4)4 |
| 8.BH.80 | Evseevite | Na2Mg(AsO4)F |
| 8.BH.80 | Moraskoite | Na2Mg(PO4)F |
| 8.BH.85 | Piccoliite | NaCaMn3+2(AsO4)2O(OH) |
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 Gottlobite
mindat.org URL:
https://www.mindat.org/min-7069.html
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References for Gottlobite
Localities for Gottlobite
Showing 1 localities.
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The 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).
All localities listed without proper references should be considered as questionable.
Germany (TL) | |
| Witzke et al. (2000) +1 other reference |
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Glücksstern Mine, Gottlob Hill, Friedrichroda, Gotha District, Thuringia, Germany