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Electrum

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Formula:
(Au, Ag)
Colour:
Pale yellow
Lustre:
Metallic
Name:
From the Greek ήλεκτρου (ílektroy) for "amber," in allusion to its colour.
Gold-Silver Series.
A variety of gold containing silver, usually with >20 wt.% of silver.


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Classification of ElectrumHide

1.AA.05

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

Physical Properties of ElectrumHide

Metallic
Transparency:
Opaque
Colour:
Pale yellow
Comment:
As the Silver content increases, the colour pales
Streak:
pale yellow
Tenacity:
Malleable
Cleavage:
None Observed
Fracture:
Hackly

Chemical Properties of ElectrumHide

Formula:
(Au, Ag)

Synonyms of ElectrumHide

Other Language Names for ElectrumHide

Simplified Chinese:银金矿

Varieties of ElectrumHide

ArgentocuproauriteTwo grains found of essentially cuprian electrum
Argentocuproaurite-IA grain from Noril'sk.

Originally reported from Talnakh Cu-Ni Deposit, Noril'sk, Putoran Plateau, Taimyr Peninsula, Taimyr Autonomous Region (Taymyrskiy Okrug), Krasnoyarsk Territory (Krasnoyarsk Kray; Krasnoyarskii Krai), Eastern-Siberian Region, Russ...
Argentocuproaurite-IIA grain of cuprian electrum from Talnakh deposit, Russia.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Quartz19 photos of Electrum associated with Quartz on mindat.org.
Gold8 photos of Electrum associated with Gold on mindat.org.
Silver7 photos of Electrum associated with Silver on mindat.org.
Sphalerite6 photos of Electrum associated with Sphalerite on mindat.org.
Uytenbogaardtite5 photos of Electrum associated with Uytenbogaardtite on mindat.org.
Acanthite5 photos of Electrum associated with Acanthite on mindat.org.
Pyrite4 photos of Electrum associated with Pyrite on mindat.org.
Malachite3 photos of Electrum associated with Malachite on mindat.org.
Aguilarite3 photos of Electrum associated with Aguilarite on mindat.org.
Baryte3 photos of Electrum associated with Baryte on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

1.AA.05AluminiumAlIso. m3m (4/m 3 2/m) : Fm3m
1.AA.05CopperCuIso. m3m (4/m 3 2/m) : Fm3m
1.AA.05GoldAuIso. m3m (4/m 3 2/m) : Fm3m
1.AA.05LeadPbIso. m3m (4/m 3 2/m) : Fm3m
1.AA.05NickelNiIso. m3m (4/m 3 2/m) : Fm3m
1.AA.05SilverAgIso. m3m (4/m 3 2/m) : Fm3m
1.AA.05UM2004-08-E:AuCuPd(Cu,Pd,Au)
1.AA.05UM1991-06-E:AuCuAu3Cu
1.AA.10aAuricuprideCu3AuOrth.
1.AA.10bTetra-auricuprideAuCuTet.
1.AA.10aCuproaurideCu3Au
1.AA.15AnyuiiteAuPb2Tet. 4/mmm (4/m 2/m 2/m) : I4/mcm
1.AA.15Khatyrkite(Cu,Zn)Al2Tet.
1.AA.15IodineI2
1.AA.15NovodnepriteAuPb3Tet. 4 2m : I4 2m
1.AA.15UM1985-02-E:AlZn(Zn,Cu)Al2
1.AA.20Cupalite(Cu,Zn)AlOrth.
1.AA.25HunchuniteAu2PbIso.

Fluorescence of ElectrumHide

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.

References for ElectrumHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Pliny (77A.D.) 33: 23.
Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged, 834pp.: 89-91.

Internet Links for ElectrumHide

Localities for ElectrumHide

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 ListShow