![l, uh, went back to the crystal.
l, uh, went back to the crystal.](https://content2.mcqstudy.com/ss/bb-4-7-00:33:52.405.jpeg)
l, uh, went back to the CRYSTAL.
Breaking Bad Season 4, Episode 7
![and I damn sure didn't say
anything about no crystal.
and I damn sure didn't say
anything about no crystal.](https://content2.mcqstudy.com/ss/bb-2-3-00:18:24.311.jpeg)
and I damn sure didn't say
anything about no CRYSTAL.
Breaking Bad Season 2, Episode 3
![Oh, i-it's just this
dumb crystal wand
Oh, i-it's just this
dumb crystal wand](https://content2.mcqstudy.com/ss/tbbt-12-2-00:10:00.469.jpeg)
Oh, i-it's just this
dumb CRYSTAL wand
The Big Bang Theory Season 12, Episode 2
![And this is a high-pulse laser
with a BBO crystal.
And this is a high-pulse laser
with a BBO crystal.](https://content2.mcqstudy.com/ss/tbbt-12-22-00:06:29.432.jpeg)
And this is a high-pulse laser
with a BBO CRYSTAL.
The Big Bang Theory Season 12, Episode 22
![It's a silicon dioxide crystal,
otherwise known as quartz.
It's a silicon dioxide crystal,
otherwise known as quartz.](https://content2.mcqstudy.com/ss/tbbt-12-2-00:11:00.485.jpeg)
It's a silicon dioxide CRYSTAL,
otherwise known as quartz.
The Big Bang Theory Season 12, Episode 2