Presentation on theme: "Element(ary) My(nerals), dear (Rock)son!!! What’s the difference?"— Presentation transcript:
Element(ary) My(nerals), dear (Rock)son!!! What’s the difference?
Goals O You will be able to distinguish rocks from minerals and elements at the end of these notes O You will be able to describe the differences between rocks, elements, and minerals
What comes to your mind when You think of Elements? O Smallest piece of matter O Mass number/Atomic number O Proton/Neutron/Electron
What comes to mind when you hear the word Minerals? O Vitamins and Minerals O Valuable O Mineral buildup (hard water) O…O…
Real Definitions O Minerals- Naturally occurring, inorganic solid that possesses definite chemical structure with unique physical properties. Quartz Diamond
Characteristics of Minerals 1. Naturally Occurring 2. Inorganic –Never Alive 3. Must be solid 4. Must have definite chemical structure
Examples of Minerals O Quartz O Chemical formula: SiO 2 O Crystal structure: Multi-faceted(faced), elongated, with flat faces and no specific fracture pattern O Most prized pieces are large and clear but there are many variants based on impurities
Examples of Minerals O Orthoclase Feldspar O Chemical formula: KAlSi 2 O 8 O Crystal Structure: molecules form 3- Dimensional network with anhedral (no organizations) crystal structure O Appearance: Usually light pink in color, but varies
Examples of Minerals O Horneblende O Chemical formula: Ca 2 (Mg, Fe, Al) 5 (Al, Si) 8 O 22 (OH) 2 ; the Mg, Fe, and Al are interchangeable in the first group as the Al and Si are in the second. The (OH) is a hydroxide unit. O Crystal structure and appearance: Black irregular structure
What comes to mind when you hear the word Rocks? O Dirty O Hard O ______s are dumb, throw Rocks at them… O…O…
Real Definitions O Rock- A collection or aggregation of minerals
Difference Between Rocks and Minerals O Rocks O Collections of minerals and other materials O Consolidated mixtures of minerals O Minerals O A naturally occurring, inorganic crystalline material with a unique chemical makeup
Characteristics of Minerals O Minerals are identified by their physical characteristics O Luster O Color O Hardness O Cleavage O Streak O Diaphaneity (light transmission) O Tenacity O Crystal form O Magnetism O Refraction or double refraction O Taste O Odor O Reactivity
Vocab. O Use the handout and your partner to complete the vocabulary for this section in your notes. We will have a vocabulary check on Tuesday for this set and the previous set.
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