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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.


Classification of Electrum

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 Electrum

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 Electrum

Formula:
(Au, Ag)

Synonyms of Electrum

Other Language Names for Electrum

Simplified Chinese:银金矿

Varieties of Electrum

Argentocuproaurite

Two grains found of essentially cuprian electrum

Argentocuproaurite-I

A 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, Russia...

Argentocuproaurite-II

A grain of cuprian electrum from Talnakh deposit, Russia.

Common Associates

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 Grouping

1.AA.05AluminiumAl
1.AA.05CopperCu
1.AA.05GoldAu
1.AA.05LeadPb
1.AA.05NickelNi
1.AA.05SilverAg
1.AA.05UM2004-08-E:AuCuPd(Cu,Pd,Au)
1.AA.05UM1991-06-E:AuCuAu3Cu
1.AA.10aAuricuprideCu3Au
1.AA.10bTetra-auricuprideAuCu
1.AA.10aCuproaurideCu3Au
1.AA.15AnyuiiteAuPb2
1.AA.15Khatyrkite(Cu,Zn)Al2
1.AA.15IodineI2
1.AA.15NovodnepriteAuPb3
1.AA.15UM1985-02-E:AlZn(Zn,Cu)Al2
1.AA.20Cupalite(Cu,Zn)Al
1.AA.25HunchuniteAu2Pb

Fluorescence of Electrum

Other Information

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 Electrum

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 Electrum

mindat.org URL:
https://www.mindat.org/min-1365.html
Please feel free to link to this page.
Specimens:
The following Electrum specimens are currently listed for sale on minfind.com.

Localities for Electrum

Mineral and/or Locality  
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