The sport of Auto Racing.
Nobody MADE opals. They're mined out of the ground.
Soccer
Opals cannot be used as foods. They are hard, precious stones.
It represents rugby.
Tennis
swinning
Some opals are known as black opals, this is when they have a mainly black colour. In general a black opal is very dark blue and has flecks of other colours within
Neither opals or any other gemstone will make you invisible.
No. When opals were first found in Australia, they were not thought to be opals because they were a milky white in appearance. Opals found elsewhere in the world were mostly black.
Opals are amorphous because they lack a crystalline structure. Their formation involves the precipitation of silica spheres in a disordered arrangement, which gives opals their unique play-of-color appearance. This lack of a crystal lattice is what differentiates them from most other gemstones.
Speed Sheep Shearing