1. (2) Talc, Pyrite, & Muscovite
Which three minerals contain high concentrations of the element Calcium (Ca)?
(1) Sulfur, Fluorite, & Plagioclase
(2) Talc, Pyrite, & Muscovite
(4) Potassium Feldspar, Halite, & Garnet
(3) Calcite, Amphibole, & Dolomite

2. Identifying minerals by their properties.

3. We usually DO NOT know what a mineral is when we first find it.
The internal arrangement of atoms give it certain properties that help us identify it.

4. Properties of minerals
Luster
(shines like metal?)
Hardness
(what will it scratch?)
Cleavage / Fracture
(flat break) (jagged break)
Streak
(color on porcelain)
Color

5. Mineral A is most likely
The diagram represents a sample of mineral A.
Mineral A is most likely
(1) garnet (3) olivine
(2) galena (4) halite

7. Which mineral can scratch A, B, and C, but can not scratch D ?
(1) talc (3) fluorite
(2) selenite gypsum (4) quartz

8. Is it REALLY Unobtanium?
TIME TO TEST FOR PROPERTIES!

9. Testing will determine the mineral’s properties (Mineral Property Tests). Identification keys let us ID the mineral (Key it out).

10. ID the mineral by following these steps:
Record the name of the mineral property being tested.
Record the result of each property test.
“Key” the mineral out with the key below.

11. Hardness result

12. Luster result

13. Fracture/Cleavage result

14. Streak result

15. Click me to see video of it!
Correct Symbol? 3