Canary Diamond

Canary Diamond

The Canary Diamond is an uncut canary-yellow 17.86 carat diamond found in 1917 at what is now the Crater of Diamonds State Park in Arkansas. It is in the collection of the Smithsonian Museum of Natural History. The diamond was in the collection of civil engineer and mineral collector Washington Roebling; his son donated it, along with the rest of Roebling's collection, to the museum in 1926 after Roebling's death.

Diamond

Diamond is a mineral form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is a tasteless, odorless, strong, brittle solid, a poor conductor of electricity, colorless in pure form, and insoluble in water. Another solid form of carbon known as graphite is the chemically stable form of carbon at room temperature and pressure, but diamond is metastable and converts to it at a negligible rate under those conditions. Diamond has the highest hardness and thermal conductivity of any natural material, properties that are used in major industrial applications such as cutting and polishing tools.

canary

Noun

1. A small, usually yellow, finch (genus Serinus), a songbird native to the Canary Islands.
2. Any of various small birds of different countries, most of which are largely yellow in colour.

Adjective

1. Of a light yellow colour.

diamond

Noun

1. A glimmering glass-like mineral that is an allotrope of carbon in which each atom is surrounded by four others in the form of a tetrahedron.
2. A gemstone made from this mineral.

Adjective

1. Made of, or containing diamond, a diamond or diamonds.
2. Of, relating to, or being a sixtieth anniversary.