What is this on my dying/dead hammer?

[Wamland]

I have a hammer in a 4 month old tank and it lost all of its color in a recent hair algae event. I thought it was a complete goner and was going to pull it but let it stay for a while instead.
it now has a white cap on the three heads as if it’s molded over or regrowing?
sitting behind some Duncan’s in the pic. The white cap looks like ice now

 

[ISpeakForTheSeas]

Any white light pics?

 

[vetteguy53081]

I have a hammer in a 4 month old tank and it lost all of its color in a recent hair algae event. I thought it was a complete goner and was going to pull it but let it stay for a while instead.
it now has a white cap on the three heads as if it’s molded over or regrowing?
sitting behind some Duncan’s in the pic. The white cap looks like ice now View attachment 3127999

Pics are extremely blue- please repost under white lighting.
This is what we see:

 

[Double monti 61]

Right if you want someone to see what is on them it is very hard to due under blue light!