We are a direct supplier of lava stone and volcanic stone
tiles. Here is some information for your review in case you need it. Also, we
supply different types of pool copings, including drop face or drop nose pool
coping, in a variety of sizes and custom made dimensions. https://www.canteravolcanic.com

What did you end up going with? We are in the same process now and I'm debating what color quartzscape to do...I like French Gray but same as you, don't love it at the depth of our baja shelf. Also, worried about our tile going with it. We are thinking about using white. I know this post is old but hope you see this and would love to see pictures of your pool and hear about your experience. Thanks!!