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Azoproite

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About AzoproiteHide

05545330015991726285950.jpg
AZOPRO logo
Formula:
(Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2
Colour:
Black
Lustre:
Adamantine
Hardness:
Crystal System:
Orthorhombic
Member of:
Name:
A Russian acronym honoring the Study of Deep Zones of the Earth’s Crust (AZOPRO in Russian) sponsored in 1969 by the International Geological Association. It was found during the preparation of a guidebook for the Association's 12th meeting at Baikal.
This page provides mineralogical data about Azoproite.


Classification of AzoproiteHide

Approved
Approval year:
1970
First published:
1970
6.AB.30

6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
24.2.1.3

24 : ANHYDROUS BORATES
2 : A2BO2[XO3]
9.6.2

9 : Borates
6 : Borates of Ti, Sn and Ta

Physical Properties of AzoproiteHide

Adamantine
Colour:
Black
Hardness:
5½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
Good on (010), less good on (001)
Fracture:
Conchoidal

Optical Data of AzoproiteHide

Type:
Biaxial (+)
RI values:
nα = 1.799 nβ = 1.822 nγ = 1.855
Max Birefringence:
δ = 0.056
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r > v medium
Pleochroism:
Strong
Comments:
X pale green with bluish tint, I dark green, nearly opaque, Z reddish-brown, absorption Y>Z>X.

Chemical Properties of AzoproiteHide

Formula:
(Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2
IMA Formula:
Mg2[(Ti,Mg),Fe3+]O2(BO3)

Crystallography of AzoproiteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 9.27 Å, b = 12.23 Å, c = 3 Å
Ratio:
a:b:c = 0.758 : 1 : 0.245
Unit Cell V:
340.12 ų (Calculated from Unit Cell)

Type Occurrence of AzoproiteHide

General Appearance of Type Material:
Prismatic crystals 1 to 20 mm long and 0.1 to 5 mm wide.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Acad. Sci. USSR, Moscow
Geological Setting of Type Material:
Magnesian skarns in the contact aureole of the Tazheran alkalic massif.
Associated Minerals at Type Locality:
Reference:
Konev, A.A., Lesedeva, V.S., Kashaev, A.A., Ushchapovskaya, Z.F. (1970) Azoproite, a new mineral of the ludwigite group. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 99(2): 225-231.

Synonyms of AzoproiteHide

Other Language Names for AzoproiteHide

Relationship of Azoproite to other SpeciesHide

Member of:
Other Members of this group:
BonaccorditeNi2Fe3+(BO3)O2Orth.
FredrikssoniteMg2(Mn3+,Fe3+)(BO3)O2Orth.
LudwigiteMg2Fe3+(BO3)O2Orth.
MarinaiteCu2Fe3+O2(BO3)Mon. 2/m : P21/b
VonseniteFe2+2Fe3+(BO3)O2Orth.

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Azoproite associated with ForsteriteMg2SiO4
1 photo of Azoproite associated with SpinelMgAl2O4
1 photo of Azoproite associated with CalciteCaCO3
1 photo of Azoproite associated with Tazheranite(Zr,Ti,Ca)O2-x

Related Minerals - Nickel-Strunz GroupingHide

6.AB.ChubaroviteKZn2(BO3)Cl2Trig. 3 2 : R3 2
6.AB.05HambergiteBe2(BO3)(OH)Orth. mmm (2/m 2/m 2/m) : Pbca
6.AB.10BerboriteBe2(BO3)(OH,F) · H2OTrig.
6.AB.15JeremejeviteAl6(BO3)5(F,OH)3Hex. 6/m : P63/m
6.AB.20Warwickite(Mg,Ti,Fe,Cr,Al)2O(BO3)Orth.
6.AB.20YuanfuliiteMg(Fe3+,Al)O(BO3)Orth.
6.AB.25KarliteMg7(BO3)3(OH,Cl)5Orth.
6.AB.30BonaccorditeNi2Fe3+(BO3)O2Orth.
6.AB.30FredrikssoniteMg2(Mn3+,Fe3+)(BO3)O2Orth.
6.AB.30LudwigiteMg2Fe3+(BO3)O2Orth.
6.AB.30VonseniteFe2+2Fe3+(BO3)O2Orth.
6.AB.35Pinakiolite(Mg,Mn2+)2Mn3+(BO3)O2Mon.
6.AB.40BlatteriteSb5+3(Mn3+,Fe3+)9(Mn2+,Mg)35(BO3)16O32Orth. mmm (2/m 2/m 2/m) : Pnnm
6.AB.40ChestermaniteMg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2Orth. mmm (2/m 2/m 2/m)
6.AB.40Orthopinakiolite(Mg,Mn2+)2Mn3+(BO3)O2Orth.
6.AB.40Takéuchiite(Mg,Mn2+)2(Mn3+,Fe3+)(BO3)O2Orth.
6.AB.45Hulsite(Fe2+,Mg)2(Fe3+,Sn)(BO3)O2Mon.
6.AB.45Magnesiohulsite(Mg,Fe2+)2(Fe3+,Sn,Mg)(BO3)O2Mon.
6.AB.45Aluminomagnesiohulsite(Mg,Fe2+)2(Al,Mg,Sn)(BO3)O2Mon. 2/m
6.AB.50FluoboriteMg3(BO3)(F,OH)3Hex.
6.AB.50HydroxylboriteMg3(BO3)(OH)3Hex. 6/m : P63/m
6.AB.55ShabyniteMg5(BO3)(OH)5(Cl,OH)2 · 4H2OMon.
6.AB.55WightmaniteMg5(BO3)O(OH)5 · 2H2OMon.
6.AB.60GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3Hex.
6.AB.65SakhaiteCa12Mg4(BO3)7(CO3)4(OH)2ClIso. m3m (4/m 3 2/m) : Fd3m
6.AB.70HarkeriteCa12Mg4Al(BO3)3(SiO4)4(CO3)5 · H2OTrig. 3m (3 2/m) : R3m
6.AB.75Pertsevite-(F)Mg2(BO3)(F,OH)Orth. mm2 : Pna21
6.AB.75Pertsevite-(OH)Mg2(BO3)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
6.AB.80JacquesdietrichiteCu2(H2BO3)(OH)3Orth. mmm (2/m 2/m 2/m) : Pmna
6.AB.85PainiteCaZrAl9(BO3)O15Hex. 6/m : P63/m

Related Minerals - Dana Grouping (8th Ed.)Hide

24.2.1.1LudwigiteMg2Fe3+(BO3)O2Orth.
24.2.1.2VonseniteFe2+2Fe3+(BO3)O2Orth.
24.2.1.4BonaccorditeNi2Fe3+(BO3)O2Orth.
24.2.1.5ChestermaniteMg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2Orth. mmm (2/m 2/m 2/m)
24.2.1.6FredrikssoniteMg2(Mn3+,Fe3+)(BO3)O2Orth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

9.6.1Warwickite(Mg,Ti,Fe,Cr,Al)2O(BO3)Orth.
9.6.3NordenskiöldineCaSn4+[BO3]2Trig. 3 : R3
9.6.4Hulsite(Fe2+,Mg)2(Fe3+,Sn)(BO3)O2Mon.
9.6.5Magnesiohulsite(Mg,Fe2+)2(Fe3+,Sn,Mg)(BO3)O2Mon.
9.6.6Béhierite(Ta5+,Nb5+)(BO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd

Other InformationHide

Notes:
Readily dissolved by dilute HCl, not dissolved in 1:3 HNO3.
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 AzoproiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Konev, A.A., Lesedeva, V.S., Kashaev, A.A., Ushchapovskaya, Z.F. (1970) Azoproite, a new mineral of the ludwigite group. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 99(2): 225-231.
Fleischer, M. (1971) New mineral names. American Mineralogist: 56: 358-362 (360).
Frost, R.L. (2011) Raman spectroscopy of selected borate minerals of the pinakiolité group. Journal of Raman Spectroscopy: 42: 540-543.
Bilohuščin, V., Uher, P., Koděra, P., Milovská, S., Mikuš, T., Bačík, P. (2017) Evolution of borate minerals from contact metamorphic to hydrothermal stages: Ludwigite-group minerals and szaibélyite from the Vysoká - Zlatno skarn, Slovakia. Mineralogy and Petrology: 111: 643-658.

Internet Links for AzoproiteHide

Localities for AzoproiteHide

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.
Russia (TL)
 
  • Irkutsk Oblast
    • Lake Baikal area
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Konev A A, Lesedeva V S, Kashaev A A, Ushchapovskaya Z F (1970) Azoproite, a new mineral of the ludwigite group, Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 99, issue 2, 225-231
  • Sakha Republic (Yakutia)
    • Polar Yakutia
      • Dogdo River Basin
        • Tas-Khayakhtakh Range
          • Titovskoe B deposit
            • Izvestkovyi Stream
E. Galuskin and N.N. Pertsev analytical data; Galuskina I.O., Kadiyski M., Armbruster T., Galuskin E.V., Pertsev N.N., Dzierzanowski P., Wrzalik R. (2008) A new natural phase in the system Mg2SiO4-Mg2BO3F-Mg2BO3(OH): composition, paragenesis and structure of OH-dominant pertsevite, - Eur. J. Mineral., 20, p. 951-964.
USA
 
  • Alaska
    • Nome Census Area
      • Seward Peninsula
Aleksandrov, S. M., & Troneva, M. A. (2008). Heterovalent isomorphism in the magnesium-iron borates. Geochemistry International, 46(8), 800.
 
Mineral and/or Locality  
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