1.
If an opal has play of color in this hue, it will also have every other hue:
Blue
Red
Green
Yellow
2.
This gem can be truly out of this world: that is, literally extraterrestrial in origin.
Spinel
Moonstone
Peridot
Andalusite
3.
Which of these gemstones will scratch quartz?
Peridot
Tanzanite
Demantoid Garnet
Topaz
Yes, these are my final answers!
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