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Alexandrite

Color-change gem variety of chrysoberyl.

Alexandrite gemstone

Alexandrite is an exceptionally rare color-change gem variety of chrysoberyl. It exhibits a striking green hue in daylight or fluorescent light and transitions to a reddish-purple under incandescent light, making it prized for its unique optical effect. Its chemical formula is BeAl₂O₄.

Pronunciation

/ˌæləksəndraɪt/

Etymology

Alexandrite is named after Tsar Alexander I of Russia.

Explain Like I’m 5

Alexandrite is a special gemstone that changes color depending on the light – it looks green in daylight and red under incandescent light.

Fun Facts

Alexandrite is the birthstone for June
It's named after Tsar Alexander II of Russia
It was discovered in 1867

FAQ

What is alexandrite? It's a color-change variety of chrysoberyl
Where does it come from? Historically found in Russia, now also found in Brazil and East Africa
Is alexandrite rare? Yes, it's considered a very rare gemstone

Hypernyms — Broader Categories

gem mineral

Holonyms — Wholes or Groups

chrysoberyl

Indexes

gemstone optical effect

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