Geography

Question

C) Observe the color of the mineral.

D) Measure the mass of the mineral.

I. The table below shows the chemical formulas for

four rock-forming minerals.

Mineral

Chalcopyrite

Fayalite

Apatite

Composition

CuFeS2

Fe,SiO,

Barite

BaSO.

Vhich mineral contains the two most abundan

ements by mass in Earth's crust?

apatite

chalcopyrite

B) fayalite

D) barite

nronerties of graphite m

Answer

Graphite has a layered structure, is a good conductor of electricity, and is used as a lubricant and in pencils.

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Graphite is a form of carbon that has a unique layered structure. The layers are made up of hexagonal rings of carbon atoms that are bonded...