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8th Science Unit 2

jorgr Science Unit 2 SECTION 1 MINERALS STUDY GUIDE

QuestionAnswer
WHAT ARE THE 5 CHARACTERISTICS TO BE CONSIDERED A MINERAL? a. Must be naturally occurring, inorganic, solid with a definite chemical composition and have its atoms arranged in an orderly pattern.
WHAT IS THE DIFFERENCE BETWEEN A ROCK AND A MINERAL? a. Minerals are composed of elements, rocks are made of minerals
WHAT ARE THE 4 MOST COMMON MINERALS? Quartz, feldspar, mica and calcite.
WHAT IS BETTER TO IDENTIFY A MINERAL, COLOR OR STREAK/ WHY a. Streak, because many different minerals can be the same color
WHAT IS THE DIFFERENCE BETWEEN CLEAVAGE AND FRACTURE? a. Cleavage is the tendency to split easily along flat surfaces but fracture is splitting unevenly.
HOW CAN WE FIGURE OUT HOW WHAT A MINERAL IS USING MOH'S HARDNESS SCALE? a. By using things like a nail, pane of glass, penny, and a finger nail to scratch the unknown object and comparing the results to what we know of the hardness scale. Ex. If it scratches a penny the object is harder than the penny.
WHAT ARE SOME ITEMS/TOOLS WE USE IN COMBINATION WITH MOH'S HARDNESS SCALE TO FIGURE THE HARDNESS OF AN UNKNOWN MINERAL? a. Finger nail, penny, Nail, pane of glass, steel knife
WHAT IS A RATING OF A 1 ON MOH'S HARDNESS SCALE? WHAT IS A 10? a. Talc, Diamond
Created by: asimien907
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