Gottlobite (original) (raw)

A valid IMA mineral species

About GottlobiteHide

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Colour:

Orange to orange-brown

Lustre:

Adamantine, Vitreous

Specific Gravity:

3.46 (Calculated)

Crystal System:

Orthorhombic

Name:

For the type locality at the Glücksstern Mine, Gottlob Hill, Friedrichroda, Thuringian Forest, Thuringia, Germany.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:7069:6

893fc510-6133-4e7a-ab03-d9275b6a14c3

IMA Classification of GottlobiteHide

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Type description reference:

Witzke, T., Steins, M., Doering, T., Kolitsch, U. (2000) Gottlobite, CaMg(VO4,AsO4)(OH), a new mineral from Friedrichroda, Thuringia, Germany. Neues Jahrbuch für Mineralogie - Monatshefte: 2000: 444-454.

Classification of GottlobiteHide

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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

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.

Physical Properties of GottlobiteHide

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Colour:

Orange to orange-brown

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 GottlobiteHide

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RI values:

_n_α = 1.797(4) _n_β = 1.805 - 1.815 _n_γ = 1.828(5)

2V:

Measured: Very large° , Calculated: 62° to 80°

δ = 0.031

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Comments:

X = orange-brown, Y = pale yellowish brown, Z = orange-brown.

Comments:

Absorption: Z ≥ X > Y.

Chemistry of GottlobiteHide

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Mindat Formula:

CaMg(VO4)(OH)

Crystallography of GottlobiteHide

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Crystal System:

Orthorhombic

Class (H-M):

222 - Disphenoidal

Cell Parameters:

a = 7.501 Å, b = 9.01 Å, c = 5.941 Å

Ratio:

a:b:c = 0.833 : 1 : 0.659

Morphology:

Forms: {010} dominant, {110}, {011}, {111}, {111} and {101}.

Crystal StructureHide

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X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of GottlobiteHide

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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:

Reference:

Witzke, T., Steins, M., Doering, T., Kolitsch, U. (2000) Gottlobite, CaMg(VO4,AsO4)(OH), a new mineral from Friedrichroda, Thuringia, Germany. Neues Jahrbuch für Mineralogie - Monatshefte: 2000: 444-454.

Synonyms of GottlobiteHide

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Other Language Names for GottlobiteHide

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Relationship of Gottlobite to other SpeciesHide

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Other Members of this group:

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Other InformationHide

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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 GottlobiteHide

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References for GottlobiteHide

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Reference List:

Witzke, T., Steins, M., Doering, T., Kolitsch, U. (2000) Gottlobite, CaMg(VO4,AsO4)(OH), a new mineral from Friedrichroda, Thuringia, Germany. Neues Jahrbuch für Mineralogie - Monatshefte: 2000: 444-454.

Localities for GottlobiteHide

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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

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- 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.