How Does Alexandrite Form - Web to form, alexandrite requires both beryllium (be), one of the rarest elements on earth, and chromium (cr). Web real alexandrite is one of the rarest gemstones, so you probably haven’t seen the stone in its true natural form. Web alexandrite is formed in metamorphic rocks under high temperature and pressure conditions.
Web to form, alexandrite requires both beryllium (be), one of the rarest elements on earth, and chromium (cr). Web real alexandrite is one of the rarest gemstones, so you probably haven’t seen the stone in its true natural form. Web alexandrite is formed in metamorphic rocks under high temperature and pressure conditions.