Gold Jewelry > Gemstones > Quartz Cryptocrystalline
| Colors: | many colors |
|---|---|
| Mohs: | 6 ¾ |
| Transparency: | translucent |
| Most common origin: | Brazil |
| Rarity: | not rare |
| Colors: | dark green with small red dots |
|---|---|
| Mohs: | 6 ¾ |
| Transparency: | opaque |
| Most common origin: | Australia |
| Rarity: | rare |
| Colors: | orange to red |
|---|---|
| Mohs: | 6 ¾ |
| Transparency: | translucent |
| Most common origin: | Brazil |
| Rarity: | common |
| Colors: | black |
|---|---|
| Mohs: | 6 ¾ |
| Transparency: | opaque |
| Most common origin: | Brazil |
| Rarity: | common |
| Colors: | light pink to pink red |
|---|---|
| Mohs: | 6 ¾ |
| Transparency: | translucent |
| Most common origin: | Brazil |
| Rarity: | not common |
| Colors: | various brown shades |
|---|---|
| Mohs: | 6 ¾ |
| Transparency: | opaque |
| Most common origin: | Namibia |
| Rarity: | common |
