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Lazarenkoite

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About LazarenkoiteHide

E. K. Lazarenko
Formula:
(Ca,Fe2+)Fe3+As3+3O7 · 3H2O
Colour:
Bright orange
Lustre:
Resinous, Silky
Hardness:
1
Specific Gravity:
3.45
Crystal System:
Orthorhombic
Name:
In honour of Academician Evgenii Konstantinovich Lazarenko (1912–1979), mineralogist, Lvov University, Lvov, Ukraine.
This page provides mineralogical data about Lazarenkoite.


Classification of LazarenkoiteHide

Approved
4.JC.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
C : Arsenites, antimonites, bismuthites; without additional anions, with H2O
7.8.3.1

7 : MULTIPLE OXIDES
8 : AB3X7
23.20

23 : Arsenites

Physical Properties of LazarenkoiteHide

Resinous, Silky
Colour:
Bright orange
Hardness:
Density:
3.45(5) g/cm3 (Measured)    

Optical Data of LazarenkoiteHide

Type:
Biaxial (-)
RI values:
nα = 1.820(3) nβ = 1.920(3) nγ = 1.955(3)
2V:
Measured: 30° , Calculated: 58°
Birefringence:
0.135
Max Birefringence:
δ = 0.135
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
small
Pleochroism:
Strong
Comments:
X = pale yellow; Y = pale brown; Z = rose-brown

Chemical Properties of LazarenkoiteHide

Formula:
(Ca,Fe2+)Fe3+As3+3O7 · 3H2O
IMA Formula:
CaFe3+As3+3O7 · 3H2O

Crystallography of LazarenkoiteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 21.80 Å, b = 12.64 Å, c = 8.40 Å
Ratio:
a:b:c = 1.725 : 1 : 0.665
Unit Cell V:
2,314.64 ų (Calculated from Unit Cell)
Z:
10
Comment:
Orthorhombic-pseudohexagonal; point group not determined.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
11.2 (9)
8.40 (10)
6.55 (8)
4.66 (9)
3.31 (4)
3.20 (4)
3.135 (4)

Type Occurrence of LazarenkoiteHide

General Appearance of Type Material:
Fibrous incrustations.
Geological Setting of Type Material:
In oxidation zone of a cobalt-nickel ore deposit, where it is an oxidation product of skutterudite (smaltine) and löllingite.
Associated Minerals at Type Locality:

Synonyms of LazarenkoiteHide

Other Language Names for LazarenkoiteHide

Related Minerals - Nickel-Strunz GroupingHide

4.JC.05CafarsiteCa5.9Mn1.7Fe3Ti3(AsO3)12 · 4-5H2OIso. m3 (2/m 3) : Pn3
4.JC.15RouseitePb2Mn2+[AsO3]2 · 2H2OTric.
4.JC.20Vajdakite[(Mo6+O2)2(H2O)2As3+2O5] · 3H2OMon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

23.2NanlingiteNa(Ca5Li)Mg12(AsO3)2[Fe(AsO3)6]F14Trig.
23.3LeiteiteZn(As2O4)Mon. 2/m : P21/b
23.5Kuznetsovite(Hg+2)Hg2+(AsO4)ClIso. 2 3 : P21 3
23.6PaulmooreitePb2[As2O5]Mon. 2/m : P21/b
23.7EcdemitePb6Cl4(As2O7)Tet.
23.8HeliophyllitePb6Cl4(As2O7)Orth.
23.9FinnemanitePb5(AsO3)3ClHex. 6/m : P63/m
23.10GebharditePb8(As2O5)2OCl6Mon.
23.11Zimbabweite(Na,K)2PbAs4(Ta,Nb,Ti)4O18Orth.
23.13RouseitePb2Mn2+[AsO3]2 · 2H2OTric.
23.14FreediteCu+Pb8(AsO3)2O3Cl5Mon. 2/m : B2/m
23.15ManganarsiteMn3(As2O4)(OH)4
23.17ArmangiteMn2+26(AsO3)14(HAsO3)4(CO3)Trig. 3 : P3
23.18KaribibiteFe3+3(As3+O2)4(As3+2O5)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
23.19SchneiderhöhniteFe2+Fe3+3As3+5O13Tric. 1 : P1
23.21StenhuggariteCaFeSb(AsO3)2OTet.
23.22Tomichite(V,Fe)4Ti3AsO13(OH)Mon.

Other InformationHide

Notes:
Insoluble in water, but easily dissolved in dilute, cold HCl.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for LazarenkoiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Yakhontova, L.K. and Plosina, I.I. (1981): The new mineral lazarenkoite. Mineral. Zhurnal, 3(3), 92–96 (in Russian with English abs.).
American Mineralogist (1982): 67: 415. (Abs.)
Yakhontova, L.K., I.A. Poroshina, and I.I. Plyunina (1983): Structural model of lazarenkoite according to refractometric analysis data. Probl. Kristallokhim. Genezisa Miner., 145–148 (in Russian).

Internet Links for LazarenkoiteHide

Localities for LazarenkoiteHide

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

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Germany
 
  • Lower Saxony
    • Harz
      • Bad Harzburg
        • Radau valley
No reference listed
Russia (TL)
 
  • Eastern-Siberian Region
    • Tuva Republic
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Switzerland
 
  • Wallis (Valais)
    • Anniviers Valley
      • Saint-Luc
Ansermet, S. (2012): Mines et minéraux du Valais - II. Anniviers et Tourtemagne. With contributions by N. Meisser, Ed. Porte-plumes (Ayer)
Mineral and/or Locality  
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