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

a gypsum.

Explanation:

On the moh's scale of hardness, minerals that are above another can be scratched by the one below.

 The moh's scale is used to measure the hardness of a substance.

it will or they will call your parents and you get is not in your me i know the feeling kinda dumb > .>

read the sentence below and answer the question that follows. one of the norms in the village was to meet at the town square on fridays for a community dinner and dance. the underlined word in the sentence above is best defined as a a. cultural element shared by all people around the world b. specific area in a town used for traditional community events c. religious custom accepted and practiced by all members of a village d. behavioral pattern that is regularly accepted by a group of people