Science Rocks Flashcards
(12 cards)
1
Q
MINERAL
fizzes with acid, 3 on the Mohs scale
A
Calcite
2
Q
MINERAL
most common mineral, used in making glass
A
Quartz
3
Q
MINERAL
very soft, 1 on Mohs scale, used in cosmetics
A
Talc
4
Q
MINERAL
lead ore, heavy, breaks into cubes
A
Galena
5
Q
MINERAL
hardest mineral, used in jewelry and for cutting
A
Diamond
6
Q
MINERAL
breaks into thin sheets
A
Mica
7
Q
MINERAL
made of carbon not lead, used in pencils and machinery lubricants
A
Graphite
8
Q
MINERAL
salt, unique taste, used to preserve food
A
Halite
9
Q
ROCK
igneous, formed from magma cooling inside the earth
A
Granite
10
Q
ROCK
sedimentary or metamorphic, formed from dead plants that was buried for millions of years
A
Coal
11
Q
ROCKS
metamorphic, formed when rocks with large crystals are subjected to heat and pressure, foliated
A
Gneiss
12
Q
ROCK
igneous, volcanic glass
A
Obsidian
