Aw ShamRock I am so sorry.
QUARTZ? Wow that is just crazy! I"m so glad you cleaned the cage and discovered it. I sure hope the rest of your birds are ok.
Thank you so much for the warning. I don't use that kind but it's an eyeopener to check ALL brands.
Again, I am so sorry for your loss. ((hugs))
R I P little Darcy^