Week 3 Day 1.pptx

Earth Materials and Processes

MINERALS and ROCKS

A mineral is naturally occurring, inorganic, homogenous solid with definite chemical composition and ordered internal/ crystalline structure.

Give some examples of minerals that we use in our daily life. Do you consider water a mineral? How about snowflake or tube ice? Explain why?

Examples of minerals that we use in our daily lives:

•halite (salt) for cooking •graphite (pencil) for writing •diamond and gold as jewelry

Let us watch a 10-minute video about minerals. Write every details, examples, and information that you will get from watching the video. Do

not talk, just write and learn!

Sharing time! What did you learn from the video presentation?

I. A mineral is naturally-occurring • It should be made by natural processes without the aid of any organism. • Any material that is formed in laboratories or artificial conditions is NOT CONSIDERED a mineral.

2. A mineral is Inorganic It must not have the structure or characteristic of living bodies. It must not be a by-product of living things or was once part of an organism Bones, Shells, Teeth, Coal, and other hard parts of an organism are NOT MINERALS

3. A mineral is a homogenous solid Something that is uniform in appearance and is in the

solid state of matter

4. A mineral has a definite chemical composition A mineral must posses uniformity in its chemical composition

Pyrite – compose of one atom of Iron (Fe) and two atoms of Sulfur (S2) = FeS2 therefore, it should be known that all mineral identified as Pyrite should be composed of Iron (Fe) and Sulfur (S2) in that ratio.

POLYMORPHS Minerals to share a common chemical composition.

5. A Mineral has an ordered internal/crystalline structure A crystalline material is something that has its elemental components arranged in an ordered fashion.