Top 10 Opaque Gemstones and Minerals

The Top Ten
1 Black Diamond / Carbonado / Carbonado Diamond
2 Pearl
3 Jadeite
4 Opal
5 Lapis Lazuli
6 Moonstone

It's opaque to semi-transparent.

7 Rose Quartz

It's opaque to semi-transparent.

8 Tiger's Eye
9 Turquoise
10 Obsidian

The flakes effect is natural!

The Contenders
11 Cassiterite
12 Nephrite
13 Jasper
14 Bloodstone (Heliotrope)
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