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Minerals

Earth Science - Mr. Hobson

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Across
4.least reliable clue of a mineral's identity
6.breaking with rough and jagged edges
7.minerals that can be mined for a profit
11.the way a mineral reflects light from its surface
14.a solid in which the atoms are arranged in a repeating pattern
15.the manner in which a mineral breaks along planes
16.minerals that contain silicon and oxygen
18.when a liquid becomes full of a dissolved substance and can dissolve no more
21.valuable minerals that are prized for their rarity and beauty
24.streak color made by hematite
26.Mg
28.Si
29.K
32.Ca
34.a naturally occurring, inorganic solid, with a specific composition and crystalline structure
35.ratio of a material's mass to its volume
Down
1.describes how a mineral feels to the touch
2.Fe
3.example mineral on the hardness scale with a rating of 6
5.minerals composed of oxygen and a metal
8.the color of a mineral when it is broken up and powdered
9.the measure of how easily a mineral can be scratched
10.SiO2 (silicon dioxide)
12.ratio of the mass of a substance to the mass of an equal volume of water at 4°C (2 Words)
13.a geometric solid having four sides that are equilateral triangles
17.minerals composed of one or more metallic elements and the carbonate ion
19.Al
20.O
22.molten material that forms below Earth's surface
23.softest mineral on the hardness scale with a rating of 1
25.hardest mineral on Earth
27.minerals composed of elements with the sulfate ion
30.Na
31.C
33.scale of hardness

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