Basic
What is the most common mineral type? What are they made of?
Silicates - Silicon and Oxygen
What is the difference between colour and streak?
Colour is how it looks. Streak is when you rub the mineral on streak plate.
What is cleavage? What mineral that Mr.Alfie always shows us has 'Cleavage'?
When a mineral often breaks into pieces with flat surfaces. Sharpppe-eeeehhhh
Hard things have strong ____ between ____.
bonds between atoms. Diamonds not sharp-eeehhhhh
Friedrich Mohs - 1812
Minerals have 4 characteristics. Which characteristic causes something to be dull or shiny?
The crystal structure. Small crystals do not reflect light well
I dropped a glass. Whoooopppsss!!!! Do the peices show fracture or cleavage?
Fracture - They break into different shapes and sizes
What is density?
The amount of mass in a given volume. How much stuff is in a space.
How many siblings does Mr. Alfie have?
Too many!!!!
What 4 characteristics make a mineral a mineral?
Forms in nature
Solid
Definite chemical makeup
Crystal structure
the way in which light reflects from a minerals surface.
The strength of bonds between atoms and what direction they are weak.
What is hardness?
Resistance to being scratched.
What is the teacher's full name?
:P (￣y▽,￣)╭
What is a crystal structure?
The arrangement of atoms in the solid mineral. It should always have the same order and will repeat in 3 dimensions. " The way I put my cake together"
What does the word Non-Metallic mean?
Smooth flat surfaces are called '______ Cleavage'
Perfect - Like me :P ㅋ
How does the Mohs scale work?
Things with a high number can scratch anything with the same or lower number.
Why are perfect crystals such as diamonds rare?
Perfect crystals only grow when they have free space. Free space is rare in the Earth's crust.
What is meant by a definite chemical makeup?
The specific combination of atoms of certain elements. "The exact ingredients needed to make the cake"
What happens to the surface of a mineral if it is exposed to atmosphere or water?
It can cause it to become dull.
A mineral show fracture. What do we know about the bonds between atoms?
They are fairly equal in all directions.
What are the 4 special properties a mineral could have?
Acid test, Fluorescence, Magnetic, Radioactivity.
I find a mineral and identify it as Pyrite and yet it has a dull surface. what can I do in order to see the luster of my pyrite mineral.
crack it in half!