Starting on Vulcanus I've noticed, I need more stone than I get as byproduct. Instead of building a buffer or fixing my factory, I've made this mod as my first one.

Tech tree:

This mod adds various stone-related recipes locked behind techs.

• Lava to stone, stone furnace and steel furnace
• Lava to stone walls and gates
• Lava to concrete
• Lava to foundation (optional)

Recipes

• Lava to stone bricks and walls
• Lava to stone, landfill, and sand (from mods)
• Optional melting recipes from stone (or sand) to lava with reduced volume
• Lava and water to both, normal and refined concrete
• additional Vulcanus recipe for foundation

Complex and Expensive Mode

Both are similar as they add an extra calcite to some recipes. While the complex mode only adds an additional calcite to the melting recipes, the expensive mode adds to every mod-recipe an additional calcite, regardless if it is a small or large amount of lava.
Personally, I enjoy the complex mode most.

Mod Support

This mod is compatible with some overhaul mods, like AAI Industry and K2SO. It is also compatible to a bunch of smaller mods, like [concrete productivity]. You can see them in the dependency list.
But if you have some special mod you like to combine this mood with, let me know.