immortality + stone.
fire + stone
fire plus stone equals metal
Mortar, using a pestle to grind the grains to flour.
pressure+plant
If a gemstone is an imitation or a simulated stone then it may look real but the characteristics of the stone will not be the same as a real stone. For e.g., a real or natural stone will have some form of inclusions, so if the stone you are being sold looks too flawless, it may not be real. However, if the stone is inexpensive, then its fine if it is synthetic but if it is very expensive then you need to make sure that it in fact real and genuine.
Air + Lava = Stone
Air + Lava = Stone
fire + stone
Brick and stone
fire + stone
Stone + Air
Stone + plant
fire + stone
stone+fire
stone+metal
fire + stone
Stone + fire