Look up quartz in
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Quartz is a common mineral.

Quartz may also mean:

• Fused quartz, synthetic silica glass
• Jakie Quartz, French singer
• Quartz clock, a descriptor applied to a type of watch or clock that relies on the mineral in its timekeeping mechanism
• Quartz (graphics layer), the graphics-rendering technology used in Mac OS X
• Software codename for:
  • DirectShow by Microsoft
  • Microsoft Expression Web
• Quartz (cryptography), the name of a public-key cryptography signature scheme
• Quartz (spyplane), a cancelled CIA spyplane project to replace the SR-71
• Quartz (metal band), a heavy metal band from England
• Quartz (band), a dance production from Sweden
• Quartz (software),a Java open source job scheduling system

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