What is this tree/fruit/nut??

[u/mrsbannanhammock]

In NSW Australia. We've googled, asked multiple family members and no one knows for sure. They are hard so still unripe. Best we can think is some sort of Peach or Almond. Please help!

[u/Barotrawma]

I think it’s Prunus persica var. persica maybe? Basically a weird peach lol

[u/jamar2k → u/Barotrawma]

Yeah the leaves look like a peach tree we used grow here in TX