Mexican 10 Pesos Coin 2005 (Bimetallic): Value & How to Sell

If you found a Mexican 10 pesos coin dated 2005 with an Aztec sun face on it, here is the honest answer: circulated, it is worth roughly its face value, about 50 cents to 1 US dollar. Only pristine, uncirculated examples reach a small premium of around 3 to 4 dollars. This is one of the most common Mexican coins in existence, and no year of it is going to make you rich.

What you actually have

The 2005 ten pesos is a standard circulation coin, not a commemorative. Mexico's central bank, Banco de México (Banxico), struck it year after year starting in 1997 as everyday pocket change. It belongs to what Mexican catalogs call the "Familia C" series.

It is a bimetallic coin: a silver-colored center disc set inside a gold-colored ring. Neither part is a precious metal. The center is alpaca (also called nickel silver, an alloy of copper, nickel and zinc) and the outer ring is aluminum bronze (copper, aluminum and nickel). That matters for your wallet: there is no melt value floor here, so the coin is worth only what a collector will pay, and collectors barely want it.

Physical specs:

• Weight: 10.33 grams
• Diameter: 28 mm
• Edge: reeded (grooved)
• Composition: alpaca center, aluminum bronze ring

The reverse (the face people notice) shows the central disc of the Piedra del Sol, the Aztec Sun Stone, specifically the face of Tonatiuh wearing the fire mask. Around it you will see the value "10", the year 2005, the "Mo" mint mark for Mexico City, and the legend DIEZ PESOS. The other side (obverse) carries Mexico's national coat of arms, the eagle on a cactus with a snake.

Is it rare?

No. Banxico minted 64,635,000 pieces in 2005. That is over 64 million coins, a high-volume year for a coin made to be spent. Rarity is the single biggest driver of coin value, and this coin has none. What little value it can carry comes entirely from condition, not the date.

Real value by condition

Condition	What it means	Approximate value (USD)
Circulated (worn)	Used, scratched, from pocket change	Face value, about 0.50 to 1.00
Uncirculated (BU)	Never spent, full luster, roll-fresh	About 2.50 to 3.50

International catalogs reference a worn piece at essentially face value (roughly 10 to 20 Mexican pesos) and a brilliant uncirculated example at around 50 to 60 pesos. Converted to dollars, that is the difference between pocket change and the price of a coffee. Do not expect thousands for a coin that rode around in someone's purse.

Don't confuse it with the silver commemoratives

Here is where people get their hopes up. In 2005 Mexico also released 10 pesos silver commemorative coins, part of a state series honoring places like Chiapas and Baja California. Those are entirely different coins: they contain real silver, were minted in small numbers, and sell for far more. If your coin is solid silver-colored all the way across (not two-tone), heavier, and names a Mexican state, you may have one of those instead. The bimetallic circulation coin described here is the common one.

Valuable errors?

On bimetallic Mexican 10 pesos coins, the errors collectors chase are off-center centers, rotation between the core and the ring, and doubled strikes. We have no verified record of a specific cataloged error for the 2005 date, so check yours under a loupe before assuming it is worth more. A coin with a loose or misaligned center is worth a look; a normal one is not.

How to tell if yours is genuine

• Confirm the two-tone bimetallic build: a light center and a gold-colored ring, firmly bonded together.
• Weigh it: it should be 10.33 grams. A wildly different weight is a red flag.
• Measure it: 28 mm diameter, reeded edge.
• Inspect the reverse: the face of Tonatiuh should be sharp, with a clear "Mo" mint mark and the year 2005.

Coins with a center that spins freely or a weight far off from 10.33 grams are suspect.

Where to sell it

For a common circulated piece, the honest truth is you will not get more than face value from a dealer, and shipping may cost more than the coin is worth. If you have a genuinely uncirculated example or think you have one of the 2005 silver commemoratives, take it to an established coin shop rather than guessing on an online marketplace. In Mexico, you can locate reputable dealers by city in the Pesoteca shop directory. To see the full run of this coin type, browse the bimetallic 10 pesos series, or explore the broader nuevos pesos era.

Got a 2005 ten pesos that looks unusual, off-center, or solid silver instead of two-tone? Post clear photos in the Pesoteca forum and we will help you figure out whether it is the common coin or something worth setting aside.

When Banxico erased the N$ prefix from the peso starting in 1996, the circulating pieces kept the same physical format as their Nuevos Pesos equivalents from the decree of June 22, 1992. This bimetallic 10 pesos coin struck in 2005 is part of that continuity: same technical specifications, same base design with the National Coat of Arms on the obverse, only the nominal value visible on the reverse changed. That's why when you gather dates you see long sequences with very little variation.

For the Mexican collector building a collection by year, these pieces are the ones that fill the basic gaps before hunting the rare commemorative versions. Banxico documents mintages in its Circular Monetaria CM10 from the year 2000, so for 2005 it is possible to verify the exact mintage against that source. Pesoteca catalogs each year as a distinct physical piece in the PSM System family C, following our convention of one ID per collectible piece, not per shared design.