Chuna (चूना) is the Hindi word for lime, typically referring to edible calcium hydroxide (slaked lime) or calcium oxide (quicklime), used in traditional Indian practices like paan (betel quid)

Multani Mitti is known as Fuller's Earth, a natural clay with powerful absorbent and cleansing properties, often called Indian Healing Clay, used for skin (acne, oil control, glow)

Coal is a combustible, carbon-rich sedimentary rock, formed over millions of years from compressed ancient plant matter, used primarily as a fossil fuel for electricity and industrial heat

Copper (Cu) is a reddish, ductile metal (atomic number 29) known for excellent electrical/thermal conductivity, used in wiring, plumbing, and alloys like bronze

Silver (Ag, atomic number 47) is a lustrous, soft, white transition metal known for having the highest electrical/thermal conductivity and reflectivity of any metal

Steel is an iron-carbon alloy, while stainless steel is a specific type of steel with added chromium (at least 10.5%), giving it superior corrosion resistance due to a self-healing, passive oxide layer that prevents rust

Aluminium (Al) is a lightweight, strong, silvery-white, and corrosion-resistant metal, the most abundant metal in Earth's crust

Cobalt (Co, atomic number 27) is a hard, lustrous, silvery-gray metal essential for modern technology, known for its use in high-strength alloys, magnets, and rechargeable batteries for EVs, as well as providing vibrant blue color in pigments and glass

Iron (Fe) is a vital mineral for the human body, essential for oxygen transport via hemoglobin, and a common, strong metal used in construction, but the term also refers to household appliances (irons) for removing wrinkles from clothes

Scrap types are mainly categorized as Ferrous (iron/steel, magnetic, rusty) or Non-Ferrous (aluminum, copper, brass, etc., non-magnetic, rust-resistant) metals