Result To The Formation Of Large Crystals. Amethyst formed when large crystals grew in open spaces inside the rock. In the long-run the melt forms a cool hard rock made up of crystals with no open spaces and dont exhibit any desirable grain alignment.
Rapid cooling results in smaller crystals while slow cooling results in large crystals. Different types of urine crystals form for different reasons. The crystals can then be collected and allowed to dry.
What three factors should be considered before mining a newly found mineral deposit.
Slow cooling will result in a smaller number of large crystals. Fast cooling will result in a large number of small crystals. The crude material is dissolved in a solvent and gently heated. As of 1999 the worlds largest known naturally occurring crystal is a crystal of beryl from Malakialina Madagascar 18 m 59 ft long and 35 m 11 ft in diameter and weighing 380000 kg 840000 lb.