How to Do It. Make the request to get your ring engraved by your jeweler when you order the ring. If the jeweler can't do it, he should be able to refer you to an engraver. Be sure to double-check the spelling of the requested inscription before you pass it on to the engraver, and check it again when you receive it.
Igneous rocks form when magma or lava cools and hardens into a rock. Magma and lava are rocks that are so hot they move like a liquid. Magma is molten rock that is underground; lava is molten rock that is above the ground â and that is the only difference between them.A common igneous rock is granite.gneous rocks form when magma or lava cools and hardens into a rock. Magma and lava are rocks that are so hot they move like a liquid. Magma is molten rock that is underground; lava is molten rock that is above the ground â and that is the only difference between them.
Tweet. Key Difference: Rocks are formed from minerals or mineroids solidified into one. A rock could be made up of either one or more than one minerals combined together. Minerals are homogenous solids that have regular structures and are found in rocks, ore and mineral deposits in the earthâs crust.omposition. Rocks are made up of one or more minerals or mineraloids. Have a definite chemical composition; minerals are inorganic compounds. Characteristics. Rocks are characterized by mineral and chemical composition, texture and permeability.