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AMA style

David Weinberg. "Definition of Chromium". In Alexandrite Tsarstone Collectors Guide. July 03, 2010, 04:47 UTC. Available at: http://w.alexandrite.com/viewpage.html?id=GG-088-00005. Accessed July 18, 2026.

APA style

"Definition of Chromium". (2010, July 03). In Alexandrite Tsarstone Collectors Guide. Retrieved 20:13, July 18, 2026, from http://w.alexandrite.com/viewpage.html?id=GG-088-00005.

Bluebook style

"Definition of Chromium", http://w.alexandrite.com/viewpage.html?id=GG-088-00005 (last visited July 18, 2026).

Bluebook: Harvard JOLT style

See Alexandrite Tsarstone Collectors Guide, "Definition of Chromium", http://w.alexandrite.com/viewpage.html?id=GG-088-00005 (A grayish-white, hard, brittle, non-corrosive metallic element in the Group VIB of the Periodic System, obtained from chromite. One of the eight metallic elements, mainly responsible for green or red color in very important gem minerals such as emerald, ruby, spinel, pyrope garnet, demantoid garnet, jadeite, purple topaz, synthetic minerals, glassed, etc. Chemical symbol: Cr.) (as of Jul. 18, 2026, 20:13 GMT).

CBE/CSE style

David Weinberg. "Definition of Chromium". In Alexandrite Tsarstone Collectors Guide. 2010 Jul 03, 04:47 UTC.[Internet], Alexandrite Tsarstone Collectors Guide; 2010 Jul 03, 04:47 UTC [cited 2026 Jul 18]. Available from: http://w.alexandrite.com/viewpage.html?id=GG-088-00005.

Chicago style

David Weinberg, "Definition of Chromium", http://w.alexandrite.com/viewpage.html?id=GG-088-00005, (accessed July 18, 2026).

MLA style

"Definition of Chromium". Alexandrite Tsarstone Collectors Guide. 03 Jul 2010, 04:47 UTC. 18 Jul 2026 http://w.alexandrite.com/viewpage.html?id=GG-088-00005

MHRA style

David Weinberg, "Definition of Chromium", Alexandrite Tsarstone Collectors Guide, 03 July 2010, 04:47 UTC, http://w.alexandrite.com/viewpage.html?id=GG-088-00005 [accessed 18 July 2026].