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UM1985-02-E:AlZn

Invalid as an unnamed mineral
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Formula:
(Zn,Cu)Al2
Colour:
metallic pale grey
Occurs as anhedral, elongated grains and veinlets, up to 8 x 40 microns in size, filling interstices of cupalite II or, rarely, present within khatyrkite masses. The second reported zinc aluminide from this assemblage is 'UM1985-03-E:AlZn'.

Contacts of the mineral with cupalite and khatyrkite are corrosive.


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Unique IdentifiersHide

Mindat ID:
38720
Long-form identifier:
mindat:1:1:38720:6

Similar NamesHide

IMA Classification of UM1985-02-E:AlZnHide

IMA status notes:
Unnamed (probably invalid)
Approval history:
Unnamed, and probably invalid.

Classification of UM1985-02-E:AlZnHide

Strunz-mindat (2025):
1.AA.15

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
A : Copper-cupalite family
Dana 8th ed.:
1.1.23.3

1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group

Physical Properties of UM1985-02-E:AlZnHide

Colour:
Metallic pale grey

Optical Data of UM1985-02-E:AlZnHide

Anisotropism:
light gray tints
Bireflectance:
not observed
Colour in reflected light:
pale gray
Comments:
reflectane greater than that of cupalite but lower than that of khatyrkite; negative relief in relation to both these minerals

Chemistry of UM1985-02-E:AlZnHide

Mindat Formula:
(Zn,Cu)Al2
Element Weights:
Element% weight
Zn54.783 %
Al45.217 %

Calculated from ideal end-member formula.
Elements listed:
Al, Cu, Zn - search for minerals with similar chemistry

First Recorded Occurrence of UM1985-02-E:AlZnHide

Synonyms of UM1985-02-E:AlZnHide

Related Minerals - Strunz-mindat GroupingHide

1.AA.JonlarseniteAl4Cu9Iso. 4 3m : P4 3m
1.AA.05Native LeadPbIso. m3m (4/m 3 2/m) : Fm3m
1.AA.05aAuricupride Subgroup
1.AA.05Native NickelNiIso. m3m (4/m 3 2/m) : Fm3m
1.AA.05Native SilverAgIso. m3m (4/m 3 2/m) : Fm3m
1.AA.05UM2004-08-E:AuCuPdCu2PdAu
1.AA.05UM1991-06-E:AuCuAu3Cu
1.AA.05Native AluminiumAlIso. m3m (4/m 3 2/m) : Fm3m
1.AA.05SteinhardtiteAl0.38Ni0.32Fe0.30Iso. m3m (4/m 3 2/m) : Im3m
1.AA.05Native GoldAuIso. m3m (4/m 3 2/m) : Fm3m
1.AA.05Native CopperCuIso. m3m (4/m 3 2/m) : Fm3m
1.AA.05Copper Group
1.AA.10aCuproaurideCu3Au
1.AA.10bTetra-auricuprideAuCuTet. 4/mmm (4/m 2/m 2/m) : P4/mmm
1.AA.10aAuricuprideCu3AuIso. m3m (4/m 3 2/m) : Pm3m
1.AA.10Nickel Group
1.AA.15AnyuiiteAuPb2Tet. 4/mmm (4/m 2/m 2/m) : I4/mcm
1.AA.15NovodnepriteAuPb3Tet. 4 2m : I4 2m
1.AA.15Khatyrkite(Cu,Zn)Al2Tet. 4/mmm (4/m 2/m 2/m) : I4/mcm
1.AA.20Cupalite(Cu,Zn)AlOrth.
1.AA.25HunchuniteAu2PbIso. m3m (4/m 3 2/m)
1.AA.30StolperiteAlCuIso. m3m (4/m 3 2/m) : Pm3m
1.AA.35HollisteriteAl3FeMon. 2/m : B2/m
1.AA.40IcosahedriteAl63Cu24Fe13Icos. 5 3m : Fm 3 5
1.AA.45Kryachkoite(Al,Cu)6(Fe,Cu)Orth. mm2 : Cmc21
1.AA.50ProxidecagoniteAl34Ni9Fe2Orth. mmm (2/m 2/m 2/m) : Pnma

Other InformationHide

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 UM1985-02-E:AlZnHide

References for UM1985-02-E:AlZnHide

Localities for UM1985-02-E:AlZnHide

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 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.
Kazakhstan
 
  • Aktobe Region
    • Yrgyz District
Gornostaeva et al. (2018)
Russia (FRL)
 
  • Chukotka Autonomous Okrug
    • Anadyrsky District
      • Iomrautvaam massif
ZVMO 114 (1985)
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