Question

1-rock used in jewellery.

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Answer 1

Answer:

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Explanation:

Granite, limestone, sandstone and marble. Rocks give us useful metals for eg meals like iron, copper and aluminium are used for making utensils and precious metals like gold, platinum are used for making jewellery. moreover carnelian rock is also used inside the jewelleries

Answer 2

Granite it is the world's toughest substance and is used in jewellery making