torbernite

American

[tawr-ber-nahyt] / ˈtɔr bərˌnaɪt /

noun

a mineral, hydrated copper uranium phosphate, CuU 2 P 2 O 12 ⋅12H 2 O, occurring in square tabular crystals of a bright-green color: a minor ore of uranium; copper uranite.

torbernite British

/ ˈtɔːbəˌnaɪt /

noun

a green secondary mineral consisting of hydrated copper uranium phosphate in the form of square platelike crystals. Formula: Cu(UO 2 ) 2 (PO 4 ) 2 .12H 2 O

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of torbernite

1850–55; named after Torbern Bergman (1735–84), Swedish chemist; -ite ¹

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Though closely resembling the tetragonal torbernite in form, it crystallizes in the orthorhombic system and is optically biaxial.

From Project Gutenberg

The colour is sulphur-yellow, and this enables the mineral to be distinguished at a glance from the emerald-green torbernite.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023