Alarsite (original) (raw)

A valid IMA mineral species

About AlarsiteHide

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Colour:

Colorless, with pale tints of yellow, green, blue due to inclusions

Specific Gravity:

3.32 (Calculated)

Name:

Named by Tatyana Fedorovna Semenova, Lidiya Pavlovna Vergasova, Stanislav Konstantinovich Filatov, and Vasiliy Viktorovich Ananev in 1994 from its composition, containing ALuminium and ARSenic.

This page provides mineralogical data about Alarsite.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:94:5

a611cdcf-a852-4d28-b23f-0692aa0d578e

IMA Classification of AlarsiteHide

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Type description reference:

Classification of AlarsiteHide

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8.AA.05

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
A : With small cations (some also with larger ones)

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 AlarsiteHide

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Transparency:

Transparent, Translucent

Colour:

Colorless, with pale tints of yellow, green, blue due to inclusions

Comment:

colorless in transmitted light

Density:

3.32 g/cm3 (Calculated)

Optical Data of AlarsiteHide

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RI values:

_n_ω = 1.596 _n_ε = 1.608

δ = 0.012

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

Optical Extinction:

Parallel.

Pleochroism:

Non-pleochroic

Chemistry of AlarsiteHide

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Crystallography of AlarsiteHide

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Class (H-M):

32 - Trapezohedral

Cell Parameters:

a = 5.031(1) Å, c = 11.226(6) Å

Unit Cell V:

246.07 ų (Calculated from Unit Cell)

Morphology:

Subhedral grains, to 0.3 mm, in aggregates.

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 AlarsiteHide

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Place of Conservation of Type Material:

Mining Institute, St. Petersburg, Russia.

Geological Setting of Type Material:

Associated Minerals at Type Locality:

Reference:

Semenova, T.F., Vergasova, L.P., Filatov, S.K., and Ananev, V.V. (1994) Alarsite AlAsO4: A new mineral from volcanic exhalations. Doklady Akademii Nauk: 338(4): 501-505.

Synonyms of AlarsiteHide

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Other Language Names for AlarsiteHide

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Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Fluorescence of AlarsiteHide

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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 AlarsiteHide

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References for AlarsiteHide

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Reference List:

Goiffon, A., Bayle, G., Astier, R., Jumas, J.C., Maurin, M., and Phillippot, E. (1983) Cristallochimie des phases GaPO4, AlAsO4 et GaAsO4. Étude comprée des structures de type quartz α. Revue de Chimie Minérale: 20: 338-350.

Localities for AlarsiteHide

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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.