A mineral occurring as prismatic crystals, typically brown but sometimes in translucent forms of gem quality. It consists of zirconium silicate and is the chief ore of zirconium.
- Sillimanite, cordierite, apatite, monazite and zircon are also present.
- A honey-colored to brown zircon continues to be mined that can be heat-treated to lighten the color.
- Even resistant minerals such as zircon have been found to be etched by bacteria.
Late 18th century: from German Zirkon; compare with jargon2.
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