Green occlusions in purple slate

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Author Message   Lucerne96 (Lucerne96) Junior Member Username: Lucerne96 Post Number: 12 Registered: 03-2011 Posted on Wednesday, March 16, 2011 - 10:53 am:        probably copper in the slate   Old_school (Old_school) Senior Member Username: Old_school Post Number: 591 Registered: 01-2009 Posted on Thursday, March 03, 2011 - 08:42 pm:        Where did you get the slate from?   Joe (Joe) Moderator Username: Joe Post Number: 590 Registered: 07-2006 Posted on Thursday, March 03, 2011 - 06:51 pm:        You can post photos here if you make sure they are no larger than 200 kb in size.   Walter_musson (Walter_musson) Senior Member Username: Walter_musson Post Number: 186 Registered: 07-2006 Posted on Thursday, March 03, 2011 - 03:18 pm:        I'd like to view them . E mail is under my screen name   Hodlebli (Hodlebli) New member Username: Hodlebli Post Number: 1 Registered: 03-2011 Posted on Thursday, March 03, 2011 - 02:24 pm:        We just installed a mixed green, gray, (18%)purple slate roof on a house. It looked beautiful until it snowed and then the snow melted. There were large and small green splotches in about 90% of the purple slates that weren't there before. All splotches are diagonal in direction. I can't seem to be able to post pictures here, but I can e-mail them to anyone interested. My customer is upset and i am looking for helpful information. Thank you Pat