Ericlaxmanite (original) (raw)

A valid IMA mineral species

About EriclaxmaniteHide

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Colour:

Green to dark green

Specific Gravity:

5.036 (Calculated)

Name:

Named in honour of the Russian mineralogist, geologist, geographer, biologist and chemist Erik Gustavovich Laxmann (July 27, 1737 – January 6, 1796).

This page provides mineralogical data about Ericlaxmanite.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:43886:5

IMA Classification of EriclaxmaniteHide

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Classification of EriclaxmaniteHide

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8.BB.52a

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 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 EriclaxmaniteHide

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Colour:

Green to dark green

Cleavage:

Distinct/Good
One direction of distinct cleavage (observed under the microscope).

Fracture:

Irregular/Uneven

Density:

5.036 g/cm3 (Calculated)

Optical Data of EriclaxmaniteHide

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RI values:

_n_α = 1.870(10) _n_β = 1.900(10) _n_γ = 1.915(10)

2V:

Measured: 60° (15), Calculated: 70°

δ = 0.045

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

Comments:

X = very pale green; Y = green, with medium saturation of colour; Z = bright green.

Comments:

Absorption: Z > Y > X.

Chemistry of EriclaxmaniteHide

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Mindat Formula:

Cu4O(AsO4)2

Crystallography of EriclaxmaniteHide

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Class (H-M):

1 - Pinacoidal

Cell Parameters:

a = 6.4271(4) Å, b = 7.6585(4) Å, c = 8.2249(3) Å
α = 98.396(4)°, β = 112.420(5)°, γ = 98.397(5)°

Ratio:

a:b:c = 0.839 : 1 : 1.074

Morphology:

Tabular, lamellar, equant or short prismatic crystals up to 0.1 mm in size.

Crystal StructureHide

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X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Comments:

From Type Description.

Geological EnvironmentHide

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Type Occurrence of EriclaxmaniteHide

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General Appearance of Type Material:

Clusters of tabular, lamellar, equant or short prismatic crystals up to 0.1 mm; pseudomorphs after urusovite crystal crusts up to 1.5×2 cm in area.

Place of Conservation of Type Material:

Type material is deposited in the collections of the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4387/1.

Geological Setting of Type Material:

Fumarole. The temperature measured at the collecting site was 360-380ºC.

Associated Minerals at Type Locality:

Synonyms of EriclaxmaniteHide

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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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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 EriclaxmaniteHide

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References for EriclaxmaniteHide

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Reference List:

Pekov, I. V., Zubkova, N. V., Yapaskurt, V. O., Belakovskiy, D. I., Vigasina, M. F., Sidorov, E. G., Pushcharovsky, D. Yu. (2014) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. II. Ericlaxmanite and kozyrevskite, two natural modifications of Cu4O(AsO4)2. Mineralogical Magazine, 78 (7) 1553-1569 doi:10.1180/minmag.2014.078.7.03

Localities for EriclaxmaniteHide

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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.