a mineral consisting of titanium dioxide in crystalline form. Japanese calls Kin-Kou-Seki.
a hard yellowish to brownish translucent fossil resin. Japanese calls Ko-Haku.
Japanese calls Ou Gyoku. a mineral that occurs in crystals of various colors and is used as a gemstone
Japanese calls Ou Gyoku. a mineral that occurs in crystals of various colors and is used as a gemstone
Japanese calls Kan Rei Seki. A trichroic violet-blue variety of the mineral zoisite mined in Tanzania, used as a gemstone.
Japanese calls Kan Rei Seki. A trichroic violet-blue variety of the mineral zoisite mined in Tanzania, used as a gemstone.
Japanese calls Kuro-Tan-Paku-Seki Black Opal is a greenish type of opal with black mottling and gold flecks. Usually found in ancient hot springs, the gem is us
Japanese calls Kuro-Tan-Paku-Seki Black Opal is a greenish type of opal with black mottling and gold flecks. Usually found in ancient hot springs, the gem is us
Japanese calls Kai-Tetsu-Zaku-Ro-Ishi a garnet consisting of calcium iron silicate and having any color ranging from yellow and green to brown and black
Japanese calls Kai-Tetsu-Zaku-Ro-Ishi a garnet consisting of calcium iron silicate and having any color ranging from yellow and green to brown and black