ebony turning

Hello, I am having a big problem keeping my pens made from ebony from cracking. I apply thin CA during the turning process and have used the combination CA glue finish and still have problems. I live in Denver where the air is much drier and thinner. Could that be the cause for my problem...

I tried to make a cross Euro pen with Ebony and a wood I have not used before, Pink Ivory. Ebony, Ivory,:wink: Neat idea huh? Well I am having problems with the Ebony staining the ivory, looks kinda dirty. Any suggestions? I may just give up and use pink corian next time.