Some common metal minerals include iron, copper, gold is metal or nonmetal, and silver. Minerals without metallic elements can be defined as having an inorganic chemical formula. The following are examples of common minerals: clay, dolomite, gypsum, mica, amethyst, quartz, etc.
Question : What distinguishes non-metallic minerals from metallic minerals?
Option 1: Non-metallic minerals are always solid
Option 2: Non-metallic minerals have metallic properties
Option 3: Non-metallic minerals do not contain metals
Option 4: Non-metallic minerals are used in energy production
Question : What is the peculiar character of allochromatic minerals?
Option 1: These minerals are coloured due to impurities.
Option 2: These minerals are naturally-coloured minerals without any impurities.
Option 3: These minerals are naturally colourless minerals.
Option 4: These minerals are colourless and very explosive.
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