Eggshape what fossil is this

[lovefossil]

Hello guys i just want to ask what fossil is this,found in philippines mindoro,this is a place who found lots of ammonites.

[Tidgy's Dad]

Look like pieces of haematite to me. Some appear to have been tumbled. 

[Rockwood]

Suppose that one in the lower left might be an ammonite mold in haematite ?

[FossilNerd]

2 hours ago, Rockwood said:

Suppose that one in the lower left might be an ammonite mold in haematite ?

I see what you mean.

@lovefossil Maybe a picture of that particular specimen would help confirm or deny.

[val horn]

Stones. Moki balls

[Fossildude19]

I agree with hematite or ironstone concretions.

Similar (but not exactly)  to "moqui marbles". (iron oxide and sandstone)

 

Cropped and brightened: