Minerals in geodes form spectacular euhedral crystals because . A. all of the elements incorporated in the crystals are in plentiful supply B. the crystals have abundant room to grow in their hollow surroundings C. minerals within geodes are always framework silicates D. minerals within geodes always contain iron

C. minerals within geodes are always framework silicates

Explanation:

This is true going by the facts that, it is only the silicates that can be able to form crystals as obtainable in diamonds etc. Since the minerals in geodes are in the framework of silicates families, they can be able to form euhedral crystals.

the volume of fluid displaced would equal the volume of the gas. use a gas syringe - this is a laboratory instrument that can be used to withdraw a certain volume of gas from a closed system or to measure the volume of gas from a chemical reaction.