1. Minerals of the Earth’s Crust
Chapter 3
Minerals of the Earth’s Crust
Chap 3, Sect 1 (Maybe a Mineral?)p.65
Objectives:
Describe the structure of minerals.
How is a mineral different than a rock?

2. **How do you know it’s a mineral?
Tech Terms:
mineral - a naturally formed, inorganic solid that has a definite crystalline structure.
**How do you know it’s a mineral?
Is it a nonliving material?
Is it solid?
Hey! Is it a mineral?
Does it have a crystalline structure?
Is it made in nature?

3. crystal – the solid geometric form of a mineral, produced by a repeating pattern of atoms or molecules (the crystal gives the mineral its identity).
Element- pure substances that can not be broken down. All minerals contain one or more natural element.
Atom- the smallest part of an element that has all of the element’s properties.
**All 4 questions must be answered yes for it to be a mineral!! So which objects are minerals?
Atom
Element
Compound
Crystal
Mineral
Rock

4. How is a mineral different than a rock?
organic
Inorganic
Inconsistent
Consistent crystal structure
Made of minerals
Made of elements
No equal composition
Grouped how they are made
Equal composition – same all the way through
Grouped by what they are made of

5. 3.1 Notes Continued.. Remember…
Minerals are classified by WHAT they are made of.
ROCKS are classified by HOW they form.