Is your feature request related to a problem? Please describe.
Quark adds a few types of stone, some of which are derivatives of vanilla blocks (I may have forgotten some):

• Elder Prismarine
• Marble
• Jasper
• Limestone
• Slate
• Basalt

Describe the solution you'd like
These blocks should have the same texture variations available as blocks like stone and prismarine.

Describe alternatives you've considered
Instead of generating unique textures for each stone type, you could instead apply each new stone texture as a filter to an existing stone type, and generate them automatically.

These were actually on my planned texture list (Midori blocks being what brought it about mentally.) No promises but they're in my notes.