metal & minerals

Mineral is naturally ocurred complex metallic oxides. When the rock is formed under high heat & high pressure, metallic elements react with non-metallic elements to form complex metal oxides. From the mineral we analyse the % of metal contents, if the rock contains high % of let say iron, then it is the mineral of iron metal. From there the mineral of iron, a series of chemical proceses are designed to reduce the complex oxides to pure metal--iron.

metal可以係element / mixture
一般我地用的係alloy(mixture of 2 or more metal)
metal element 係 m.p and b.p high, hard and stong, malleable and ductile, can conduct electricity

而minerals係一d metal compound
mostly found in ores(mixture of metal compound)
minerals係由metal compound form,可在molten state通電!

metal is金屬,mineral is礦物質

一個是物件, 一個是元素.

metal is金屬製品,mineral is礦物質