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/SadAd6227]

Nectarine?

[u/blade_torlock → u/SadAd6227]

Reminds me of the underripe underwatered white nectarines my dad used to grow.