Kyanite, whose English name is Kyanite, is derived from the Greek Kyanos, 이는 의미합니다 “파란색”. It also has another English name, Kisthene, which also comes from Greek, 이는 의미합니다 “double” 그리고 “strength”. It refers to different hardness. It shows one of the biggest characteristics of kyanite, 그게, the product is in different directions on […]