Nova TuffStuff Royalex replacement?

Is basalt similar to S-glass?

I know I’m late to this party, but Basalt Innegra is the real deal. Using gel coat and epoxy works very well with this material. It is strong, it is light, and it is very durable. I see it a part of the future. West Side Boat Shop EFT Sleek Basalt Innegra Kayak - YouTube