Blue Opal is a type of common opal, in that it has no play of colour. Owyhee Blue Opal is perhaps the most famous of the Blue Opals, along with Andean Blue Opal, although new discoveries of soft pastel blue opal have been recorded in Mexico in Durango.
| Alternative Names | Owyhee Opal, Durango Opal |
| Colour | Blue |
| Hardness | 5.5 - 6.5 |
| Crystal system | Amorphous |
| Streak | White |
| Lustre | Vitreous, Waxy, Greasy, Dull |
| Main Locations | USA, Mexico, Peru |
| Chakra | Throat |
| Zodiac | Cancer, Taurus, Libra |
| Numerology | 3 |
| Planetary | Neptune |
| Element | Water |
