rocks and minerals

Question 1

mineral

Answer 1

a solid inorganic substance of natural occurrence

Question 2

rock

Answer 2

solid mineral material forming part of the surface of the earth

Question 3

element

Answer 3

aspect of something abstract

Question 4

compound

Answer 4

thing that is composed of two or more separate elements

Question 5

crystal

Answer 5

piece of a homogeneous solid substance having a natural geometrically regular form

Question 6

color

Answer 6

property possessed by an object of producing different sensations on the eye

Question 7

luster

Answer 7

gentle sheen or soft glow, especially that of a partly reflective surface

Question 8

streak

Answer 8

thin line or mark of a different substance or color from its surroundings

Question 9

cleavage

Answer 9

sharp division; a split

Question 10

fracture

Answer 10

cracking or breaking of a hard object

Question 11

density

Answer 11

degree of compactness of a substance

Question 12

ore

Answer 12

naturally occurring solid material from which a metal or valuable mineral can be profitably extracted

Question 13

metallic minerals

Answer 13

which contain one or more metallic elements. Metallic minerals occur in rare, naturally formed concentrations known as mineral deposits

Question 14

non-metallic

Answer 14

reserves consist of stone quarries and clay and sand pits; chemical and fertiliser mineral deposits; salt deposits

Question 15

gemstones

Answer 15

precious or semiprecious stone, especially one cut, polished

Question 16

igneous rock

Answer 16

Igneous rock is formed through the cooling and solidification of magma or lava

Question 17

sedimentary rock

Answer 17

formed by the deposition and subsequent cementation of mineral or organic particles on the floor of oceans or other bodies of water

Question 18

metamorphic rock

Answer 18

type of rock which has been changed by extreme heat and pressure