[Histonet] Crystals forming in Hematoxylin

[Terri Braud]

Hello Histo Peeps - What are the clear crystals that form in Hematoxylin?  We use Richard-Allen 7211.  We love the stain, but occasionally, when a bottle has been previously opened, we find clear crystalline precipitate forming in the bottom.  Today, we had a huge one (over an 2" in greatest diameter) that was quite beautiful.  It had a few occlusions of purple streaks, but otherwise was clear.  Doesn't seem to affect the stain, so I was just curious.
Inquisitively yours, Terri

Terri L. Braud, HT(ASCP)
Anatomic Pathology Supervisor
Laboratory
Holy Redeemer Hospital
1648 Huntingdon Pike
Meadowbrook, PA 19046
ph: 215-938-3689
fax: 215-938-3874
Care, Comfort, and Heal