coracite Min.
(ˈkɒrəsaɪt)
[f. κόραξ, κόρακ- raven + -ite.]
A variety of pitchblende, from Lake Superior.
| 1849 Amer. Jrnl. Sc. Ser. ii. III. 117 On Coracite, a new ore of Uranium. 1868 Dana Min. (1880) 155 Coracite is probably pitchblende mixed with some gummite. |