Mineral – Essay/Short Answer

question

Why is a mineral color not helpful for identifying minerals?
answer

Same mineral may have different colors
question

Several layers are peeled from a piece of muscovite mica. What property of minerals does this illustrate? Describe the property in mica.
answer

It illustrates property of cleavage. Mica has ability to split along planes of weakness. It breaks cleanly into sheets.
question

What does the presence of cleavage planes within a mineral tell you about the chemical bonds that hold the mineral together?
answer

The chemical bonds are weak.
question

What is a crystal?
answer

Crystal is MATTER,/SOLID that is formed from an ORDERED ARRANGEMENT or atoms, ions, and molecules in REPEATING PATTERNS.
question

Do all crystals have smooth crystal faces? Explain.
answer

No. They do not all have smooth crystal faces. They can be many different shapes. cubic, hexagonal, blocky or brick and more.
question

What is the most abundant MINERAL GROUP in Earth’s crust? What ELEMENTS are ALWAYS found in the minerals included in this group?
answer

Silicates are the most abundant mineral group; Elements always found are Silicon (Si) and Oxygen (O)

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