Black Opal, not to be confused with precious Opal from Lightning Ridge, Australia; is a common Opal in that it does not display a play of colour. New finds of Black Opal have been recently discovered in Madagascar which often have swirls of brown and white in.
| Alternative Names | Brown Opal |
| Colour | Black |
| Hardness | 5.5 - 6 |
| Crystal system | Amorphous |
| Streak | White |
| Lustre | Vitreous, Waxy |
| Main Locations | Madagascar |
| Chakra | Root |
| Zodiac | Sagittarius, Scorpio |
| Numerology | 1 |
| Planetary | Earth |
| Element | Earth |
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