Beryl vs. Aquamarine — What's the Difference?

Beryl ( BERR-əl) is a mineral composed of beryllium aluminium cyclosilicate with the chemical formula Be3Al2Si6O18. Well-known varieties of beryl include emerald and aquamarine.

A transparent blue-green variety of beryl, used as a gemstone.

A transparent to translucent glassy mineral, essentially aluminum beryllium silicate, Be3Al2Si6O18, occurring in hexagonal prisms and constituting the chief source of beryllium. Transparent varieties in white, green, blue, yellow, or pink are valued as gems.

A pale blue to light greenish blue.

A mineral of pegmatite deposits, often used as a gemstone.

The bluish-green colour of the sea.

(countable) An example (a stone) of the mineral beryl.

A bluish-green variety of beryl.

(uncountable) A dull blueish green colour.

Of a bluish-green colour.

Of a dull bluish green colour.

A transparent, pale green variety of beryl, used as a gem. See Beryl.

A mineral of great hardness, and, when transparent, of much beauty. It occurs in hexagonal prisms, commonly of a green or bluish green color, but also yellow, pink, and white. It is a silicate of aluminum and beryllium. The aquamarine is a transparent, sea-green variety used as a gem. The emerald is another variety highly prized in jewelry, and distinguished by its deep color, which is probably due to the presence of a little oxide of chromium.

A transparent variety of beryl that is blue green in color

The chief source of beryllium; colored transparent varieties are valued as gems

A shade of blue tinged with green