Geography, 13.11.2020 22:10 skylergibbons01
1. Juan is trying to identify an unknown mineral. He can scratch the mineral with
his fingernail. The mineral MUST be
Mohs Hardness Scale
Mineral Name Scale Number
Common Object
Diamond
10
• Corundum
9
Masonry Drill BiH
Topaz
(8,5)
Quartz
Steel Nail (6.5)
Orthoclase
Knife/Glass
Apatite
Plate (5.5)
Fluorite
Copper Penny (3.5)
Calcite
Fingernail (25)
Gypsum
Talc
8
7
Increasing Hardness
6
a gypsum.
b. fluorite.
C. apatite, .
d. quartz
Answers: 2
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1. Juan is trying to identify an unknown mineral. He can scratch the mineral with
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