•Minerals

Question 1

Mohs hardness scale (in order)

Answer 1

1) Talc
2) Gypsum
3) Calcite
4) Fluorite
5) Apatite
6) Feldspar
7) Quartz
8) Topaz
9) Corundum
10) Diamond

Question 2

What is a streak?

Answer 2

The colour of mineral powder left behind after scraping the mineral across a porcelain plate

Question 3

What are the 6 colours variations of quartz?

Answer 3

1) Pink = Rose
2) Yellow = Citrine
3) Grey= Smoky
4) Red = Cherry
5) Purple = Amethyst
6) Colourless = Crystal

Question 4

What is lustre?

What are the examples?

Answer 4

The amount of reflected light and shine of material

Adamantine = Sparkling
Vitreous = Glassy
Metallic
Silky
Pearly
Waxy
Resinous
Dull
Earthy

Question 5

What is cleavage?

Answer 5

Natural planes of breakage due to weak ionic bonds

Question 6

What is the formula for density?

Answer 6

Mass (g) / Volume (cm-3)

Question 7

What is twinning?

Answer 7

Joining or intergrowth of two or more individuals of the same mineral speakers with different orientations of crystal lattice

Question 8

What is transparency?

What are the three types?

Answer 8

The minerals ability to transmit light through

1) Transparent
2) Translucent
3) Opaque

Question 9

What is fracture?

What are the three main types?

Answer 9

The shape of the broken surface of the material

1) conchoidal
2) even or blocky
3) uneven

Question 10

What are the 8 examples of mineral forms?

Answer 10

1) Crystal
2) Acicular = fine needles
3) Botryoidal = grape like
4) Dendritic = tree like
5) Mammilated = rounded masses
6) Lamellar = flat sheets
7) Tabular = broad/ flat
8) Massive = no form

Question 11

What is an ion?

Answer 11

Atom or molecule with a net electric charge due to the loss or gain of one or more electrons

Question 12

What is a cation?

Answer 12

A positively charged atom or molecule

Question 13

What is an anion

Answer 13

A negatively charged atom or molecule