Kyanite is a typically blue silicate mineral, commonly found in aluminium-rich metamorphic pegmatites and/or sedimentary rock. Kyanite in metamorphic rocks generally indicates pressures higher than four kilobars. Although potentially stable at lower pressure and low temperature, the activity of water is usually high enough under such conditions that it is replaced by hydrous aluminosilicates such as muscovite, pyrophyllite, or kaolinite. Kyanite is also known as disthene, rhaeticite and cyanite.
Kyanite ເປັນແຮ່ທາດ silicate ມັກສີນ້ໍາເງິນ, ພົບທົ່ວໄປໃນ pegmatites metamorphic ອາລູມິນຽມອຸດົມສົມບູນແລະ / ຫຼື sedimentary rock. Kyanite ໃນໂງ່ນຫີນ metamorphic ໂດຍທົ່ວໄປສະແດງຄວາມກົດດັນສູງກ່ວາສີ່ kilobars. ເຖິງແມ່ນວ່າອາດຫມັ້ນຄົງຢູ່ຄວາມກົດດັນຕ່ໍາແລະອຸນຫະພູມຕ່ໍາ, ກິດຈະກໍາຂອງນ້ໍາແມ່ນປົກກະຕິແລ້ວສູງພຽງພໍພາຍໃຕ້ສະພາບການດັ່ງກ່າວວ່າມັນຖືກແທນທີ່ດ້ວຍ aluminosilicates hydrous ເຊັ່ນ Muscovites ການ, Pyrophyllite ຫລື kaolinite. Kyanite ຍັງເປັນທີ່ຮູ້ຈັກເປັນ disthene, rhaeticite ແລະ cyanite.