The talcum powder is white or white-like, delicate and does not sand, and it feels greasy. Odorless and tasteless. This product is insoluble in water, dilute inorganic acid or dilute alkali hydroxide solution. Can be used medicinally.

Calamine is a carbonate mineral, calcite smithsonite, which mainly contains zinc carbonate (ZnCO3). After excavation, clean, dry and remove debris. This product is massive aggregate, irregular, gray or reddish. The surface is powdery, dull, uneven, porous and honeycomb. Light and crisp. Odorless, slightly astringent. Indications: detoxifying and improving eyesight, eliminating phlegm and removing dampness, relieving itching and healing sores. Can be used for treating red eyes, swelling and pain, red rotten eyes, pterygium, ulcer, pus discharge, wet sore and skin itching.