1. Bell work:
Define mineral.
What are some characteristics used to identify minerals?
What ARE the most dominant elements on Earth?
WHAT IS A SILICON OXYGEN TETRAHEDRON?
Today: Notes, mineral tests, Lab

3. Mineral Identification Vocabulary
Geology
Chapter2
Minerals

4. MINERAL ID Method used to identify an unknown mineral.
Process of elimination based on physical properties.

5. what a mineral looks like (color, shape, size)
Appearance
what a mineral looks like (color, shape, size)
NOT A VERY RELIABLE TEST

6. a measure of how easily a mineral scratchesT
Hardness
a measure of how easily a mineral scratchesT
Mohs scale of mineral hardness is based on the ability of one natural sample of matter to scratch another. The samples of matter used by Mohs are all minerals. Minerals are pure substances found in nature.

7. a scale comparing the hardness of 10 common minerals.
Mohs Scale of Hardness
a scale comparing the hardness of 10 common minerals.
Has values of 1-10

8. MOHS

9. FIELD HARDNESS TEST
2.5 Fingernail We all have 10 of these to wear out before taking off our shoes.
3.5 Penny Sometimes all we have left.
4.5 Knife The hardness of a blade can vary wildly depending on the quality of your knife. Check yours before going into the field so you'll know.
5.5 Glass There's usually a chunk of glass available.
7 Quartz A piece of quartz can be found almost everywhere

10. the way a mineral reflects light
Luster
the way a mineral reflects light
Contents

11. Common terms - Luster Metallic luster – looks like metal
Sub metallic luster – kind of metallic
Vitreous luster – glass like
Resinous luster – like its covered in plastic
Pearly luster – like a pearl
Greasy luster – Looks greasy
Adamantine luster - brilliant
Dull luster – Dull , not shiny
Silky luster – like silk
Waxy luster – looks waxy
EARTHY – looks like unglazed pottery

12. Metallic
shines like metal

13. 2. Non-metallic
Non-metallic luster contains 7 different lusters. They are:

14. appears to shine like glass
a.Vitreous
appears to shine like glass

15. appears to be covered in resin (plastic)
b. Resinous
appears to be covered in resin (plastic)

16. having the irridescent appearance of a pearl
c. Pearly
having the irridescent appearance of a pearl

17. looks like it is covered in thin grease
d. Greasy
looks like it is covered in thin grease

18. Looks like unglazed pottery
e.Earthy
Looks like unglazed pottery

19. Having the appearance of silk
f. Silky
Having the appearance of silk

20. having the brilliant shine like a diamond
e. Adamantine
having the brilliant shine like a diamond

22. Streak
The color of a mineral in powder form. The streak test is done on a streak plate.
The mineral must be softer than the streak plate to leave a streak

23. a break along a smooth flat surface
Cleavage
a break along a smooth flat surface

24. a break with an uneven, rough, or jagged surface
Fracture
a break with an uneven, rough, or jagged surface

25. Density is expressed as specific gravity
Density is the ratio of a mass of a substance to the mass of an equal volume of water.

26. Crystal Form
A set of faces that have a definite geometric relationship to one another

27. Special properties that not all minerals have
Other Properties
Special properties that not all minerals have

28. The ability to glow under ultraviolet light.
1a.Flourescence
The ability to glow under ultraviolet light.

29. 1b.Phosphorescence
The ability to re-emit light wenergy well after the light energy is removed.
IE – glows after the light has been removed.

30. 2. Double refraction
When passing through a material the light is split and creates two images

31. 3.Magnetism
Magnetite

32. 4. X Ray and Chemical Tests
X rays
Reactivity to acid
Polarized filters

33. TUESDAY
Tell me what you think of the statement “ you are not finished when you lose, you are finished when you quit.
Wednesday: do Friday
Thursday: List the properties used to identify an unknown mineral.