It is one of the raw materials for incense, and is read as "KAIKOU".
It is made from the powdered lids of conch shells from the east coast of Africa.
It is not aromatic on its own, but when combined with other incense ingredients, it enhances, tightens, stabilizes, and prolongs the overall fragrance. It is considered more of a scent retention agent than a fragrance ingredient.
Place of origin: East Coast of Africa, Indonesia, Malaysia
Photo courtesy: OSAGAWA NISABUROU SHOTEN