Can Someone Identify this?

I might be wrong, but it look like a token.

In the coins section I only found these two and it's not what you have.

50 Toea - Elizabeth II (South Pacific Games) - Papua New Guinea – Numista

10 Kina - Elizabeth II (9th South Pacific Games) - Papua New Guinea – Numista

It's about 500 grams, 50mm in diameter, and 4mm thick. Here's the back:

Welcome to Numista. No denomination would eliminate describing this as a coin and it is not a token as it doesn't indicate that it is redeemable in any way. It is better described a medal or medallion in the exonumia section of our catalog.  This would be a new addition to the Numista catalog. Numista is a work in progress and you can add it yourself if you like. Unfortunately I could not find any other information for this beautiful and impressive medal anywhere on the internet thus far.  Apparently, it is new to most everybody.

I also second what @harryg said. The large size really screams ‘medal’ to me. Plus, it mentions the “9th South Pacific Games”, so I am guessing it’s a medal from those games 🤔

Probably a Bronze Medal from this event

https://en.wikipedia.org/wiki/1991_South_Pacific_Games

That's very interesting, I couldn't figure anything out about it, Google hasn't really been helpful. Does someone know how to figure out the material? 

Vilager041

That's very interesting, I couldn't figure anything out about it, Google hasn't really been helpful. Does someone know how to figure out the material? 

If you want, you can play around with this test 

https://en.numista.com/numisdoc/determining-the-metal-of-a-coin-27.html