Mohs scale
The scale is between two numbers.
1-10
Oxygen is a mineral
No, gases cannot be minerals.
Organic means what?
It was alive.
Luster can be metallic?
True
Halite forms crystals of a certain shape. What is that shape?
Cubes
The hardest mineral.
Diamond
Minerals are both natural and synthetic.
Minerals are only natural.
Coal is not a mineral, why?
It was made from plants.
Non-metallic streak plates are always black powders.
False
Only one mineral has the special property of Double Refraction, which one is it?
Calcite
The hardness of a human fingernail.
2.5
Water is a mineral.
Only when it is solid as ice.
Humans eat both salt and sugar. Which one is a mineral?
Salt
Quartz has 6 sides on its crystal.
True
Out of the 9 ways to define a crystal, which is the least reliable?
Colour
We use this to test minerals below hardness 7.
Streak Plate
A minerals structure has to be...
Crystal, with a repeating pattern.
Is Pyrite an inorganic mineral?
Yes it is fools good.
When the mineral Flint breaks it is [Cleavage]
False
Which is stronger on the Mohs scale? Feldspar, Fluorite, Apatite or Topaz?
Topaz
Has a Mohs hardness of 9.
Corundum
How many minerals commonly form rocks.
8-10
Carbon can be used to make life and minerals. Which is the most common mineral with carbon in it?
Calcite
Magnetite has the special property to glow in the dark.
False
Which common mineral has the chemical composition of SiO2?
Quartz