HZ > Time zone difference > USA and South Korea. Time difference between USA and South Korea is: +13:0 hours. South Korea is 13:0 hours ahead of USA. That means when it is 1:00 am in Washington DC USA, it is 2:00 pm in Seoul South Korea (same calendar day).
The name apatite is derived from Greek meaning âto deceiveâ likely because it was often mistaken for other, more valuable gemstones, like peridot, tourmaline, and emerald. Apatite is found in igneous, sedimentary, and metamorphic rock, but only the latter grows larger crystals suitable for jewelry.patite is a soft stone, and can be very brittle. Apatite is a mineral that sits at a five on the Mohs Scale. Most commonly seen in green tones, it can also bee found in yellows, pinks, browns, violets, and blues.
A mineral related to apatite which is the main inorganic constituent of tooth enamel and bone, although it is rare in rocks. Example sentences. 1  The most familiar apatite derivative is hydroxyapatite, the bulk mineral constituent of bone. Bone consists of collagen banded fibrils sprinkled with tiny crystals of the mineral hydroxyapatite, which is basically calcium phosphate. 2  A less popular âfiller âfor wrinkles is made from calcium hydroxyapatite, a substance used to replace missing bone.â.