• A rare, usually emerald to light green but sometimes white, auburn, buff, or violet mineral, NaAlSi<sub>2</sub>O<sub>6</sub>, used as a gem and for ornamental carvings. It is the tougher and more highly valued form of jade.
  • See <internalXref urlencoded="jade">jade</internalXref>.
  • See <xref urlencoded="jade">jade</xref>, the stone.
  • A <xref>pyroxene</xref> <xref>mineral</xref>, a <xref>sodium</xref> <xref>aluminium</xref> <xref>silicate</xref> with the <xref>chemical formula</xref> <xref>Na</xref>(<xref>Al</xref>,<xref>Fe</xref>3+)<xref>Si</xref>2<xref>O</xref>6, found in <xref>metamorphic</xref> <xref>rocks</xref>.
  • a hard green mineral consisting of sodium aluminum silicate in monoclinic crystalline form; a source of jade; found principally in Burma
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