Identify wood

[DoubleDutch1962]

I'm really early on in the woodworking journey and I've made my first step away from plywood and bought a box of assorted timber on eBay. I asked them, before sending it, to mark what it is but they didn't and I wonder if the experts here can help a bit.

What should be in the box is:

Oak
Iroko
Sapele
Red Grandis

Could anyone help identify which pile is what?

 

[Bingy man]

Picture is not very clear but sapelee on the left ,, tbh not sure of others cos of my dodgy eyesight and your pick slightly out of focus

 

[Jason Wheeler]

I’ll take a stab at left to right Sapele, Iroko, Oak, Red Grandis

 

[DoubleDutch1962]

Picture is not very clear but sapelee on the left ,, tbh not sure of others cos of my dodgy eyesight and your pick slightly out of focus

Thank you and apologies about the picture. When you click on it it becomes a lot bigger - does that help?

 

[Bingy man]

Thank you and apologies about the picture. When you click on it it becomes a lot bigger - does that help?

Ah yes indeed ,, and I agree with @Jason Wheeler apart from the chunk of iroko I have is a lot darker but different type maybe

 

[Kendall Downes]

I’ll take a stab at left to right Sapele, Iroko, Oak, Red Grandis

Seems like this is correct

 

[Doug71]

apart from the chunk of iroko I have is a lot darker but different type maybe

Iroko can initially be a yellow colour but can darken to a deep brown in what seems like a matter of weeks.

 

[Bingy man]

Iroko can initially be a yellow colour but can darken to a deep brown in what seems like a matter of weeks.

Hence my confusion
Edit - this is a piece of iroko purchased for a project that didn’t go ahead ..

 

[DoubleDutch1962]

Thank you all!

 

[Richard_C]

There are a few databases online, like the wood database, and some charts of wood density. Your pieces are similar sizes, and sometimes just picking each one up and ranking them heavy to light can help you confirm your identification. I think the ones you have are similar densities apart from oak, slightly heavier, so maybe not that helpful now but in future it may be.