1
Q
Amber
A
2.5
2
Q
Beryl
A
7.5
3
Q
Chrysoberyl
A
8.5
4
Q
Corundum
A
9
5
Q
Diamond
A
10
6
Q
Feldspar
A
6
7
Q
Fluorite
A
4
8
Q
Garnet
A
6.5-7.5
9
Q
Iolite
A
7-7.5
10
Q
Jadite
A
7
11
Q
Nephrite
A
6.5
12
Q
Opal
A
6
13
Q
Peridot
A
6.5
14
Q
Pearl
A
3.5-4
15
Q
Quartz
A
6-7
16
Q
Spinel
A
8
17
Q
Tanzanite
A
6.5
18
Q
Topaz
A
8
19
Q
Tourmaline
A
7-7.5
20
Q
Zircon
A
6.5-7.5
21
Q
YAG
A
8.5
22
Q
Cubic Zirconia
A
8.5
23
Q
Synthetic Moissanite
A
9.25
