albino shroom part2

[hookedonreefs]

OK a while back I posted about an all white mushroom that I have growing on some LR. I was told it was just lacking pigment due to lack of light.
Well, it's been well over a week now, and there is absoloutly no change in color whatsoever.
Questions are:
How long can it take for color to return?
&
Is it possible to have an all white mushroom?
I have two different shrooms that are all white and are near each other.
What does everyone think?

 

[ophiura]

It will take a lot longer than a week, but I am not sure how long, to color back up. It was a shroom that probably was on the back of the rock or somehow kept out of the light for an extended period. These are the only white mushrooms that I am familiar with.

 

[macyjo]

I have one of these too--I have a couple shrooms that are in caves and have color--they grew there....but I have a(one) shroom that came up(many moons ago) on the same peice of rock as my other shrooms that have color.
It grew up white and has been white ever since --even though its brothers are on the same rock in the same light are various colors
if it is truly albino--i would think that too much light could damage it