Hi Bob lets go get some Opal at the Silica store its a 5.5-6.5 on the Mohs hardness scale and I need that for my project.
Ok sounds good we should get a magenta one even though opal comes in most colors but it has to have a white streak.
Opal also has a specific gravity of 1.98 - 2.25 unlike us we would float away without gravity.
And it has clarity, a conchoidal fracture, and no cleavage.
We made it to the Silica store Bob.
Yay, I will meet you inside.
Whats that noise it sounds like an alarm and where is Bob ? Huh, the opal is gone!
Excuse me officer what is Bob doing here also the SiO2 is gone.
Sorry miss but Bob was the one that stole the Opal which has a vitreous and pearly luster.
Dang it I was not able to steal the Opal beacuse they caught me outside how bout dat.
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