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Alexandrite

Tsarstone collectors guide


Chromium

Chromium
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.
Bibliographic details
Page title Definition of Chromium
Author David Weinberg
Website title Alexandrite Tsarstone Collectors Guide
Date published 03 July 2010 04:47 UTC
Date accessed 21 May 2026 17:42 UTC
Permanent link http://m.alexandrite.net/viewpage.html?id=GG-088-00005
AMA style
David Weinberg. "Definition of Chromium". In Alexandrite Tsarstone Collectors Guide. July 03, 2010, 04:47 UTC. Available at: http://m.alexandrite.net/viewpage.html?id=GG-088-00005. Accessed May 21, 2026.
APA style
"Definition of Chromium". (2010, July 03). In Alexandrite Tsarstone Collectors Guide. Retrieved 17:42, May 21, 2026, from http://m.alexandrite.net/viewpage.html?id=GG-088-00005.
Bluebook style
"Definition of Chromium", http://m.alexandrite.net/viewpage.html?id=GG-088-00005 (last visited May 21, 2026).
Bluebook: Harvard JOLT style
See Alexandrite Tsarstone Collectors Guide, "Definition of Chromium", http://m.alexandrite.net/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 May. 21, 2026, 17:42 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 May 21]. Available from: http://m.alexandrite.net/viewpage.html?id=GG-088-00005.
Chicago style
David Weinberg, "Definition of Chromium", http://m.alexandrite.net/viewpage.html?id=GG-088-00005, (accessed May 21, 2026).
MLA style
"Definition of Chromium". Alexandrite Tsarstone Collectors Guide. 03 Jul 2010, 04:47 UTC. 21 May 2026 http://m.alexandrite.net/viewpage.html?id=GG-088-00005
MHRA style
David Weinberg, "Definition of Chromium", Alexandrite Tsarstone Collectors Guide, 03 July 2010, 04:47 UTC, http://m.alexandrite.net/viewpage.html?id=GG-088-00005 [accessed 21 May 2026].
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