Qjunkie said:http://www.robinsoncues.com/catalog/e42.html
I'll try and find more. Maybe post in the cue gallery or ask the cue maker Re: Malachite its the "green" mineral used for inlays. I think ebony cue w/ ivory and malachite inlays look great (ie: Bender Dagger Cue)
Here's my John Robinson. The green is gorgeous.