Gatedalite (original) (raw)

A valid IMA mineral species

About GatedaliteHide

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Formula:

ZrMn2+2Mn3+4SiO12

Specific Gravity:

4.783 (Calculated)

Crystal System:

Tetragonal

Name:

Named by U. Hålenius and F. Bosi in 2013 in honor of amateur mineralogist Kjell Gatedal (b. 1947) from Nora, Örebro, Sweden, for his contributions to the mineralogy of Långban-type deposits.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:46003:1

96f07dfe-d1f4-4263-a4e4-a2ad2833a69b

IMA Classification of GatedaliteHide

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IMA Formula:

ZrMn2+2Mn3+4O8(SiO4)

Classification of GatedaliteHide

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9.AG.02

9 : SILICATES (Germanates)
A : Nesosilicates
G : Nesosilicates with additional anions; cations in > [6] +- [6] coordination

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 GatedaliteHide

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Hardness Data:

Could not be measured

Density:

4.783 g/cm3 (Calculated)

Comment:

Due to small grain size and lack of material density (and hardness) could not be measured.

Optical Data of GatedaliteHide

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Reflectivity:

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 20.0%.
R1 shown in black, R2 shown in red

Comments:

reflectivity in air varying between 17.1 and 20.8% in the visible spectral range

Chemistry of GatedaliteHide

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Mindat Formula:

ZrMn2+2Mn3+4SiO12

Crystallography of GatedaliteHide

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Crystal System:

Tetragonal

Class (H-M):

4/m m m _(_4/_m_2/_m_2/m ) - Ditetragonal Dipyramidal

Cell Parameters:

a = 9.4668(6) Å, c = 18.8701(14) Å

Unit Cell V:

1,691.14 ų (Calculated from Unit Cell)

Crystal StructureHide

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CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Comments:

From Type Description.

Geological EnvironmentHide

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Type Occurrence of GatedaliteHide

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General Appearance of Type Material:

Small (⩽60 μm), grey, submetallic, irregularly rounded anhedral grains.

Place of Conservation of Type Material:

Type material is deposited in the collections of the Swedish Museum of Natural History, Stockholm, Sweden, registration number 20130001.

Geological Setting of Type Material:

Hausmannite-impregnated skarn.

Associated Minerals at Type Locality:

Synonyms of GatedaliteHide

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Relationship of Gatedalite 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 GatedaliteHide

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References for GatedaliteHide

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Localities for GatedaliteHide

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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.