Top Definition
A mineral SiO2 consisting of a silicon dioxide that occurs in colorless and transparent of colored hexagonal crystals and also in crystalline masses
by hawk May 29, 2003
2 more definitions
simply a quater of an ounce, relating to weights and measurements in buying cannabis, exactly 7grams. mainly used in U.K
"yo mate u gettin a henry, na man dont be silly im gettin a quartz"
by akaS72" October 09, 2006
a very cool ass female rapper that lives on long island and doesn't spit that corny bullshit you hear on the radio.
"you know that girl that rhymed over that beatnuts instrumental?"
"yeah..quartz?"
"yeah, her shit's fire son!"
"no doubt.."
by nunyabiz! March 13, 2005

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