Rauchite
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About Rauchite
Formula:
Ni(UO2)2(AsO4)2 · 10H2O
Colour:
Light yellowish-green, pale green
Lustre:
Vitreous
Hardness:
2
Specific Gravity:
3.427 (Calculated)
Crystal System:
Triclinic
Member of:
Name:
Named in accordance with the naming rules accepted for the autunite group as the hydrated analogue of metarauchite (which was named first). Metarauchite was in turn named in honor of Luděk Rauch (1 July 1951 - 5 December 1983, Jáchymov, Czech Republic), a Czech mineral collector who died trgically in the Jáchymov mines while collecting.
Type Locality:
Classification of Rauchite
Approved
Approval year:
2010
First published:
2012
8.EB.05
8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
Physical Properties of Rauchite
Vitreous
Transparency:
Transparent, Translucent
Comment:
pearly on the {001} cleavage surfaces
Colour:
Light yellowish-green, pale green
Comment:
Colourless in thin section
Streak:
White
Hardness:
2 on Mohs scale
Hardness Data:
Estimated
Tenacity:
Brittle
Cleavage:
Perfect
on {001}
on {001}
Fracture:
Micaceous
Density:
3.427 g/cm3 (Calculated)
Optical Data of Rauchite
Type:
Biaxial (-)
RI values:
nα = 1.550(3) nβ = 1.578(1) nγ = 1.581(1)
2V:
Measured: 40° (5), Calculated: 36°
Max Birefringence:
δ = 0.031

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
Non observed.
Chemical Properties of Rauchite
Formula:
Ni(UO2)2(AsO4)2 · 10H2O
Common Impurities:
Mg,Co,Zn,P
Crystallography of Rauchite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 7.100(3) Å, b = 7.125(3) Å, c = 10.751(4) Å
α = 106.855(7)°, β = 104.366(7)°, γ = 90.420(6)°
α = 106.855(7)°, β = 104.366(7)°, γ = 90.420(6)°
Ratio:
a:b:c = 0.996 : 1 : 1.509
Unit Cell V:
502.4 ų
Z:
1
Morphology:
Pseudo-tetragonal (quadratic or, more often, rectangular) lamellar crystals. The major form is the {001} pinacoid, the lateral faces are very narrow and could not be indexed.
Comment:
Cell data for Mg- and P-bearing sample; dataset collected at 153 K.
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
9.97 Å | (100) |
6.641 Å | (22) |
4.936 Å | (62) |
4.533 Å | (41) |
3.539 Å | (93) |
3.388 Å | (43) |
2.488 Å | (27) |
2.233 Å | (27) |
Type Occurrence of Rauchite
Place of Conservation of Type Material:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 3997/1.
Reference:
Pekov, I.V., Levitskiy, V.V., Krivovichev, S.V., Zolotarev, A.A., Bryzgalov, I.A., Zadov, A.E. & Chukanov, N.V. (2012) New nickel-uranium-arsenic mineral species from the oxidation zone of the Belorechenskoye deposit, Northern Caucasus, Russia: I. Rauchite, Ni(UO2)2(AsO4)2.10H2O, a member of the autunite group. European Journal of Mineralogy: 24: 913-922.
Synonyms of Rauchite
Relationship of Rauchite to other Species
Member of:
Other Members of this group:
Autunite | Ca(UO2)2(PO4)2 · 10-12H2O | Orth. mmm (2/m 2/m 2/m) : Pnma |
Bassetite | Fe2+(UO2)2(PO4)2 · 10H2O | Mon. 2/m |
Heinrichite | Ba(UO2)2(AsO4)2 · 10H2O | Mon. 2/m |
Kahlerite | Fe(UO2)2(AsO4)2 · 12H2O | Tet. 4/m : P42/n |
Metarauchite | Ni(UO2)2(AsO4)2 · 8H2O | Tric. 1 : P1 |
Nováčekite-I | Mg(UO2)2(AsO4)2 · 12H2O | Tric. 1 : P1 |
Nováčekite-II | Mg(UO2)2(AsO4)2 · 10H2O | Mon. 2/m |
Sabugalite | HAl(UO2)4(PO4)4 · 16H2O | Mon. 2/m : B2/m |
Saléeite | Mg(UO2)2(PO4)2 · 10H2O | Mon. 2/m |
Torbernite | Cu(UO2)2(PO4)2 · 12H2O | Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm |
Uranocircite | Ba(UO2)2(PO4)2 · 10H2O | Tet. |
Uranospinite | Ca(UO2)(AsO4)2 · 10H2O | Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm |
Zeunerite | Cu(UO2)2(AsO4)2 · 12H2O | Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm |
Related Minerals - Nickel-Strunz Grouping
8.EB.05 | Autunite | Ca(UO2)2(PO4)2 · 10-12H2O | Orth. mmm (2/m 2/m 2/m) : Pnma |
8.EB.05 | Heinrichite | Ba(UO2)2(AsO4)2 · 10H2O | Mon. 2/m |
8.EB.05 | Kahlerite | Fe(UO2)2(AsO4)2 · 12H2O | Tet. 4/m : P42/n |
8.EB.05 | Nováčekite-I | Mg(UO2)2(AsO4)2 · 12H2O | Tric. 1 : P1 |
8.EB.05 | Saléeite | Mg(UO2)2(PO4)2 · 10H2O | Mon. 2/m |
8.EB.05 | Torbernite | Cu(UO2)2(PO4)2 · 12H2O | Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm |
8.EB.05 | Uranocircite | Ba(UO2)2(PO4)2 · 10H2O | Tet. |
8.EB.05 | Uranospinite | Ca(UO2)(AsO4)2 · 10H2O | Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm |
8.EB.05 | Xiangjiangite | (Fe3+,Al)(UO2)4(PO4)2(SO4)2(OH) · 22H2O | Tet. |
8.EB.05 | Zeunerite | Cu(UO2)2(AsO4)2 · 12H2O | Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm |
8.EB.05 | Metarauchite | Ni(UO2)2(AsO4)2 · 8H2O | Tric. 1 : P1 |
8.EB.10 | Bassetite | Fe2+(UO2)2(PO4)2 · 10H2O | Mon. 2/m |
8.EB.10 | Lehnerite | Mn2+(UO2)2(PO4)2 · 8H2O | Mon. |
8.EB.10 | Meta-autunite | Ca(UO2)2(PO4)2 · 6H2O | Tet. 4/mmm (4/m 2/m 2/m) |
8.EB.10 | Metasaléeite | Mg(UO2)2(PO4)2 · 8H2O | |
8.EB.10 | Metauranocircite-I | Ba(UO2)2(PO4)2 · 7H2O | Mon. 2 : P21 |
8.EB.10 | Metauranospinite | Ca(UO2)2(AsO4)2 · 8H2O | Tet. 4/m : P42/n |
8.EB.10 | Metaheinrichite | Ba(UO2)2(AsO4)2 · 8H2O | Tet. 4mm |
8.EB.10 | Metakahlerite | Fe2+(UO2)2(AsO4)2 · 8H2O | Tric. 1 : P1 |
8.EB.10 | Metakirchheimerite | Co(UO2)2(AsO4)2 · 8H2O | Tric. 1 : P1 |
8.EB.10 | Metanováčekite | Mg(UO2)2(AsO4)2 · 8H2O | Tet. 4/m : P4/n |
8.EB.10 | Metatorbernite | Cu(UO2)2(PO4)2 · 8H2O | Tet. 4/m : P4/n |
8.EB.10 | Metazeunerite | Cu(UO2)2(AsO4)2 · 8H2O | Tet. 4/m : P42/n |
8.EB.10 | Przhevalskite | Pb2(UO2)3(PO4)2(OH)4 · 3H2O | Orth. |
8.EB.10 | Meta-lodèvite | Zn(UO2)2(AsO4)2 · 10H2O | |
8.EB.15 | Abernathyite | K(UO2)(AsO4) · 3H2O | Tet. 4/mmm (4/m 2/m 2/m) : P4/ncc |
8.EB.15 | Chernikovite | (H3O)2(UO2)2(PO4)2 · 6H2O | Tet. |
8.EB.15 | Meta-ankoleite | K2(UO2)2(PO4)2 · 6H2O | Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm |
8.EB.15 | Natrouranospinite | Na2(UO2)2(AsO4)2 · 5H2O | Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm |
8.EB.15 | Trögerite | (H3O)(UO2)(AsO4) · 3H2O | Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm |
8.EB.15 | Uramphite | (NH4)2(UO2)2(PO4)2 · 6H2O | Tet. |
8.EB.15 | Uramarsite | (NH4)(UO2)(AsO4) · 3H2O | Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm |
8.EB.20 | Threadgoldite | Al(UO2)2(PO4)2(OH) · 8H2O | Mon. |
8.EB.20 | Chistyakovaite | Al(UO2)2(AsO4)2(F,OH) · 6.5H2O | Mon. |
8.EB.25 | Arsenuranospathite | Al(UO2)2(AsO4)2F · 20H2O | Orth. mm2 : Pnn2 |
8.EB.25 | Uranospathite | (Al,◻)(UO2)2(PO4)2F · 20(H2O,F) | Orth. mm2 : Pnn2 |
8.EB.30 | Vochtenite | (Fe2+,Mg)Fe3+(UO2)4(PO4)4(OH) · 12-13H2O | Mon. |
8.EB.35 | Coconinoite | Fe3+2Al2(UO2)2(PO4)4(SO4)(OH)2 · 20H2O | Mon. |
8.EB.40 | Ranunculite | HAl(UO2)(PO4)(OH)3 · 4H2O | Mon. |
8.EB.45 | Triangulite | Al3(UO2)4(PO4)4(OH)5 · 5H2O | Tric. |
8.EB.50 | Furongite | Al13(UO2)7(PO4)13(OH)14 · 58H2O | Tric. 1 : P1 |
8.EB.55 | Sabugalite | HAl(UO2)4(PO4)4 · 16H2O | Mon. 2/m : B2/m |
Fluorescence of Rauchite
Non-fluorescent.
Other Information
Health Risks:
Radioactive.
References for Rauchite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Pekov, I.V., Levitskiy, V.V., Krivovichev, S.V., Zolotarev, A.A., Bryzgalov, I.A., Zadov, A.E. & Chukanov, N.V. (2012) New nickel-uranium-arsenic mineral species from the oxidation zone of the Belorechenskoye deposit, Northern Caucasus, Russia: I. Rauchite, Ni(UO2)2(AsO4)2.10H2O, a member of the autunite group. European Journal of Mineralogy: 24: 913-922.
Internet Links for Rauchite
mindat.org URL:
https://www.mindat.org/min-43270.html
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Localities for Rauchite
Locality List




All localities listed without proper references should be considered as questionable.
Russia (TL) | |
| Pekov, I.V., Levitskiy, V.V., Krivovichev, S.V., Zolotarev, A.A., Bryzgalov, I.A., Zadov, A.E. & Chukanov, N.V. (2012): New nickel-uranium-arsenic mineral species from the oxidation zone of the Belorechenskoye deposit, Northern Caucasus, Russia: I. Rauchite, Ni(UO2)2(AsO4)2.10H2O, a member of the autunite group. European Journal of Mineralogy, 24, 913-922. |
Belorechensk deposit, Maykopsky District, Adygea, Russia