Question

Name 3 types of rock and describe each type. (Please DO NOT copy and paste from the internet. In your own words and try to make it clear as possible).

Answer 1

Answer: Quartz:

Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2.

Amethyst:
Amethyst is crystalline quartz in colors ranging from pale lilac to deep reddish purple. With a relatively high hardness of 7, the February birthstone is a fine facetable jewelry gem for all purposes. Lower grades of material can be cabbed, carved, and made into a great variety of beads and other ornamental object

Calcite:
Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3). It is a very common mineral, particularly as a component of limestone. Calcite defines hardness 3 on the Mohs scale of mineral hardness, based on scratch hardness comparison.

Explanation: I hope this helps i guess

Answer 2

Granite, Limestone, Sandstone, Lead, mica, zinc e.t.c

Step-by-step explanation:

Lead:

Lead is a soft, malleable and heavy bluish white metal. Lead is used in construction work. It is also used in lead-acid batteries and for making bullets.

Zinc:

Zinc is a bluish-white lustrous metal. The principal of zinc us zinc sulphide. Zinc is used for coating iron to prevent rusting and it is also used for making alloys like brass and bags of dry cells.

Limestone:

Limestone is an important mineral which is used from pre- historic time. It is used in temples, houses, building, e.t.c. Limestone is used for making cement, lime, e.t.c.