Ink is a writing object, and inkstone is a stationery for holding ink, both of which are indispensable.
Ink:
Generally speaking, ink refers to black liquid or solid, and China people seem to have a preference for black, not to mention the calligraphy and painting for two thousand years. As far back as 4 thousand years ago, in addition to adding ink to painted pottery, all-black pottery unique to the East was also used. Oracle Bone Inscriptions's symbols in Shang Dynasty and Oracle Bone Inscriptions were written in ink, and Zhou Qin's documents were written in ink on bamboo slips, wooden slips and silk. However, the ink used in Shang Dynasty and Middle Ages was different from that used after the Eastern Han Dynasty, some were graphite in natural minerals, and some were carbon black ink burned with charcoal.
Inkstone:
Inkstone, also known as inkstone, is one of the traditional Han handicrafts. Ink stone, pen, ink and paper are called the traditional Four Treasures of the Study in China, and they are the necessary tools for China's calligraphy.