Natrouranospinite (original) (raw)

A valid IMA mineral species - grandfathered

About NatrouranospiniteHide

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Formula:

Na2(UO2)2(AsO4)2 · 5H2O

Na may be replaced by minor Ca.

Colour:

Lemon-yellow, straw-yellow, yellow-green

Lustre:

Sub-Vitreous, Waxy, Pearly

Crystal System:

Tetragonal

Name:

Named sodium uranospinite in 1957 by E. V. Kopchenova and K. V. Skvortsova for being the sodium analog of uranospinite. The name was changed to its current form in 2008.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:3693:7

b1ac99d9-88af-408f-99ed-a27ab0ea459c

IMA Classification of NatrouranospiniteHide

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Approved, 'Grandfathered' (first described prior to 1959)

Classification of NatrouranospiniteHide

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8.EB.15

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1

40.2a.6.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+

20.7.2

20 : Arsenates (also arsenates with phosphate, but without other anions)
7 : Arsenates of U

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 NatrouranospiniteHide

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Sub-Vitreous, Waxy, Pearly

Transparency:

Transparent, Translucent

Colour:

Lemon-yellow, straw-yellow, yellow-green

Cleavage:

Perfect
{001}, distinct on {010}.

Density:

3.846 g/cm3 (Measured) 3.66 g/cm3 (Calculated)

Optical Data of NatrouranospiniteHide

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RI values:

_n_ω = 1.612 _n_ε = 1.585

δ = 0.027

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

Comments:

X = colorless, Y = Z = yellow.

Chemistry of NatrouranospiniteHide

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Mindat Formula:

Na2(UO2)2(AsO4)2 · 5H2O

Na may be replaced by minor Ca.

Crystallography of NatrouranospiniteHide

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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 = 7.12 Å, c = 8.61 Å

Unit Cell V:

436.48 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Comments:

Bota-Burum U deposit, Kazakhstan. The data are from the type description.

Geological EnvironmentHide

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Type Occurrence of NatrouranospiniteHide

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General Appearance of Type Material:

Fibrous to crudely platy crystals in aggregates and crusts.

Place of Conservation of Type Material:

Fersman Mineralogical Museum, Moscow, Russia, number 72124-26 (type).

Geological Setting of Type Material:

Oxidized zone of uranium-sulfide deposit hosted by felsite porphyry and tufaceous breccia.

Associated Minerals at Type Locality:

Synonyms of NatrouranospiniteHide

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Other Language Names for NatrouranospiniteHide

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Relationship of Natrouranospinite 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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Fluorescence of NatrouranospiniteHide

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Fluoresces bright yellow green in SW and LW

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 NatrouranospiniteHide

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References for NatrouranospiniteHide

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Localities for NatrouranospiniteHide

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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.