Mohs scale
Definition
Inorganic?
True or false?
Random (hard)

100

The scale is between two numbers.

1-10

100

Oxygen is a mineral

No, gases cannot be minerals.

100

Organic means what?

It was alive.

100

Luster can be metallic?

True

100

Halite forms crystals of a certain shape. What is that shape?

Cubes

200

The hardest mineral.

Diamond

200

Minerals are both natural and synthetic.

Minerals are only natural.

200

Coal is not a mineral, why?

It was made from plants. 

200

Non-metallic streak plates are always black powders.

False

200

Only one mineral has the special property of Double Refraction, which one is it?

Calcite

300

The hardness of a human fingernail.

2.5

300

Water is a mineral.

Only when it is solid as ice.

300

Humans eat both salt and sugar. Which one is a mineral?

Salt

300

Quartz has 6 sides on its crystal.

True

300

Out of the 9 ways to define a crystal, which is the least reliable?

Colour

400

We use this to test minerals below hardness 7.

Streak Plate

400

A minerals structure has to be...

Crystal, with a repeating pattern. 

400

Is Pyrite an inorganic mineral?

Yes it is fools good.

400

When the mineral Flint breaks it is [Cleavage]

False

400

Which is stronger on the Mohs scale? Feldspar, Fluorite, Apatite or Topaz?

Topaz

500

Has a Mohs hardness of 9.

Corundum

500

How many minerals commonly form rocks.

8-10

500

Carbon can be used to make life and minerals. Which is the most common mineral with carbon in it? 

Calcite

500

Magnetite has the special property to glow in the dark.

False

500

Which common mineral has the chemical composition of SiO2?

Quartz