CoinMetalIdentifier
Coin Metal Identifier
Coin Metal Identifier
Input coin weight and dimensions to help identify the metal composition.
Calculate Specific Gravity
Common Coin Metal Reference
| Metal | Composition | Sp. Gravity | US Examples |
|---|---|---|---|
| Copper (pure) | 99.9% Cu | 8.96 | Large cents (1793-1857), half cents |
| Bronze (95/5) | 95% Cu, 5% Sn/Zn | 8.85 | Lincoln cents (1909-1942, 1944-1982) |
| Brass (95/5) | 95% Cu, 5% Zn | 8.60 | Gold-plated tokens, some world coins |
| Copper-Nickel (75/25) | 75% Cu, 25% Ni | 8.92 | Nickels (1866+), clad coinage edges |
| Cupro-Nickel Clad | Cu core, Cu-Ni outer layers | 8.92 | Dimes/Quarters/Half (1965+), SBA/Sac/Pres dollars |
| 90% Silver | 90% Ag, 10% Cu | 10.33 | All US silver coins (1792-1964) |
| 40% Silver | 40% Ag, 60% Cu | 9.53 | Kennedy halves (1965-1970), Eisenhower dollars (1971-1976 S) |
| Sterling Silver | 92.5% Ag, 7.5% Cu | 10.35 | Some commemorative coins, world coinage |
| 90% Gold | 90% Au, 10% Cu | 17.16 | US gold coins (1795-1933), $1-$20 denominations |
| Gold (.999) | 99.9% Au | 19.32 | Modern bullion (American Buffalo, commemoratives) |
| Steel (zinc-coated) | 99% Fe, zinc coating | 7.85 | 1943 Lincoln cent (wartime steel) |
| Zinc-core (Cu-plated) | 97.5% Zn, 2.5% Cu plating | 7.10 | Lincoln cents (1982+) |
| Platinum | 99.95% Pt | 21.45 | Platinum Eagle bullion, some commemoratives |
| Manganese Brass | 77% Cu, 12% Mn, 7% Zn, 4% Ni | 8.00 | Sacagawea/Presidential dollar (2000+) |
Nemtokake komposisi logam saka dhuwit recehan. Ngenali emas, perak, tembaga, lan logam liyane sing digunakake ing produksi koin.
Key Features
Database komposisi logam
Panuntun panguji Kapadhetan
Identifikasi warna
Informasi paduan
Carane Ngenali Coin Metal
Priksa Warna
Dhuwit emas iku emas, dhuwit perak iku salaka, dhuwit tembaga abang
Priksa Bobot
Logam sing beda duwe kepadatan beda sing mengaruhi bobot
Test lumahing
Goleki toning (perak) utawa patina sing nuduhake jinis logam
Konfirmasi spek
Cocog karo spesifikasi resmi kanggo jinis koin kasebut
Use Cases
Idhentifikasi logam
Taksiran aji bullion
Verifikasi komposisi
Deteksi palsu
Frequently Asked Questions
Kepiye carane bisa ngerti yen dhuwit recehan emas vs emas padhet?
Tes bobot lan kapadhetan bisa mbantu. Dhuwit recehan emas padhet ketemu spesifikasi bobot resmi; dhuwit recehan emas-nepsu luwih entheng.
Apa logam sing digunakake ing koin AS?
Dhuwit recehan AS modern yaiku klambi tembaga-nikel utawa kuningan mangan. Ing sajarah, emas lan perak digunakake.
Apa jinis logam mengaruhi nilai koin?
Ya, isi logam mulia kanthi signifikan nambah nilai. Dhuwit emas lan salaka regane luwih akeh tinimbang logam dasar.
Tool Information
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