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Alexandrite

Tsarstone collectors guide


Needle

Needle
A thin needle-shaped or acicular crystal, which is an inclusions in certain minerals, such as rutilated quartz, sapphire, or corundum. Sometimes actinolite, goethite, etc. appear in certain crystals.
Bibliographic details
Page title Definition of Needle
Author David Weinberg
Website title Alexandrite Tsarstone Collectors Guide
Date published 03 July 2010 04:50 UTC
Date accessed 06 April 2026 20:27 UTC
Permanent link http://w.alexandrite.com/viewpage.html?id=GG-099-00002
AMA style
David Weinberg. "Definition of Needle". In Alexandrite Tsarstone Collectors Guide. July 03, 2010, 04:50 UTC. Available at: http://w.alexandrite.com/viewpage.html?id=GG-099-00002. Accessed April 06, 2026.
APA style
"Definition of Needle". (2010, July 03). In Alexandrite Tsarstone Collectors Guide. Retrieved 20:27, April 06, 2026, from http://w.alexandrite.com/viewpage.html?id=GG-099-00002.
Bluebook style
"Definition of Needle", http://w.alexandrite.com/viewpage.html?id=GG-099-00002 (last visited April 06, 2026).
Bluebook: Harvard JOLT style
See Alexandrite Tsarstone Collectors Guide, "Definition of Needle", http://w.alexandrite.com/viewpage.html?id=GG-099-00002 (A thin needle-shaped or acicular crystal, which is an inclusions in certain minerals, such as rutilated quartz, sapphire, or corundum. Sometimes actinolite, goethite, etc. appear in certain crystals. ) (as of Apr. 06, 2026, 20:27 GMT).
CBE/CSE style
David Weinberg. "Definition of Needle". In Alexandrite Tsarstone Collectors Guide. 2010 Jul 03, 04:50 UTC.[Internet], Alexandrite Tsarstone Collectors Guide; 2010 Jul 03, 04:50 UTC [cited 2026 Apr 06]. Available from: http://w.alexandrite.com/viewpage.html?id=GG-099-00002.
Chicago style
David Weinberg, "Definition of Needle", http://w.alexandrite.com/viewpage.html?id=GG-099-00002, (accessed April 06, 2026).
MLA style
"Definition of Needle". Alexandrite Tsarstone Collectors Guide. 03 Jul 2010, 04:50 UTC. 06 Apr 2026 http://w.alexandrite.com/viewpage.html?id=GG-099-00002
MHRA style
David Weinberg, "Definition of Needle", Alexandrite Tsarstone Collectors Guide, 03 July 2010, 04:50 UTC, http://w.alexandrite.com/viewpage.html?id=GG-099-00002 [accessed 06 April 2026].
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