NJIT Physics 203 Earth in Space Exam 2 Questions and Answers
1. geology the study of the Earth's geosphere
2. geosphere the solid part of the earth
3. mineralogy the study of minerals
4. mineral Any naturally occurring solid, inorganic object with a definite chemical structure
5. properties of a color, streak, luster, light transmittance, hardness, tenacity, cleavage, habit, den-
mineral sity, specific gravity, taste, smell, magnetic properties, chemical reactivity
6. color (mineral least reliable way to identify a mineral
property)
7. streak (mineral the color of a mineral in its powder form is more reliable
property)
8. light transmit- transparent: see through
tance (mineral opaque: no light
property) translucent: kind of see through
9. hardness (miner- resistance to scratching/rubbing without breaking
al property)
10. mohs scale measures hardness of a mineral from 1-10
1: talk (baby powder)
10: diamond
you can scratch minerals together to see which is harder
pocket knife: 4.5
fingernail: 2.5
11. tenacity (mineral resistance to breaking/deforming
property) to measure it you need to break or at least deform the mineral
no scale to measure it
, NJIT Physics 203 Earth in Space Exam 2 Questions and Answers
12. cleavage (miner- crystal geometry of a mineral when you break it (classified by orientation of the
al property) cleavage planes)
13. habit (mineral the crystal geometry of a material if it forms without confinement
property) (most of the time, it is not realized as most minerals form with at least some
confinement)
14. density (mineral = mass/volume
property) every mineral has its own density
15. specific gravity the density of an object in comparison to the density of the water
(mineral proper- = density of substance/density of water
ty)
16. magnetic prop- can be tested if it attracts metal
erties (mineral
property)
17. silicates the most common type of mineral
based on SO4, tetrahedral structure
18. types of sili- nesosilicates, sorosilicates, single chain inosilicates, double chain inosilicates,
cates in increas- phyllosilicates, tectosilicates
ing complexity
19. types of silicates nesosilicates, sorosilicates, single chain inosilicates, double chain inosilicates,
from darkest to phyllosilicates, tectosilicates
lightest
darker silicates are more dense due to the most amount of metals such as
magnesium and iron
lighter silicates are less dense due to the smaller amount of metals
20. sulfates mineral group based on sulfur oxygen
1. geology the study of the Earth's geosphere
2. geosphere the solid part of the earth
3. mineralogy the study of minerals
4. mineral Any naturally occurring solid, inorganic object with a definite chemical structure
5. properties of a color, streak, luster, light transmittance, hardness, tenacity, cleavage, habit, den-
mineral sity, specific gravity, taste, smell, magnetic properties, chemical reactivity
6. color (mineral least reliable way to identify a mineral
property)
7. streak (mineral the color of a mineral in its powder form is more reliable
property)
8. light transmit- transparent: see through
tance (mineral opaque: no light
property) translucent: kind of see through
9. hardness (miner- resistance to scratching/rubbing without breaking
al property)
10. mohs scale measures hardness of a mineral from 1-10
1: talk (baby powder)
10: diamond
you can scratch minerals together to see which is harder
pocket knife: 4.5
fingernail: 2.5
11. tenacity (mineral resistance to breaking/deforming
property) to measure it you need to break or at least deform the mineral
no scale to measure it
, NJIT Physics 203 Earth in Space Exam 2 Questions and Answers
12. cleavage (miner- crystal geometry of a mineral when you break it (classified by orientation of the
al property) cleavage planes)
13. habit (mineral the crystal geometry of a material if it forms without confinement
property) (most of the time, it is not realized as most minerals form with at least some
confinement)
14. density (mineral = mass/volume
property) every mineral has its own density
15. specific gravity the density of an object in comparison to the density of the water
(mineral proper- = density of substance/density of water
ty)
16. magnetic prop- can be tested if it attracts metal
erties (mineral
property)
17. silicates the most common type of mineral
based on SO4, tetrahedral structure
18. types of sili- nesosilicates, sorosilicates, single chain inosilicates, double chain inosilicates,
cates in increas- phyllosilicates, tectosilicates
ing complexity
19. types of silicates nesosilicates, sorosilicates, single chain inosilicates, double chain inosilicates,
from darkest to phyllosilicates, tectosilicates
lightest
darker silicates are more dense due to the most amount of metals such as
magnesium and iron
lighter silicates are less dense due to the smaller amount of metals
20. sulfates mineral group based on sulfur oxygen
