https://indianpedia.org/index.php?action=history&feed=atom&title=EmeraldEmerald - Revision history2026-07-30T17:23:47ZRevision history for this page on the wikiMediaWiki 1.45.4https://indianpedia.org/index.php?title=Emerald&diff=340213&oldid=prevMovebot at 17:45, 31 July 20222022-07-31T17:45:52Z<p></p>
<p><b>New page</b></p><div>{{Infobox mineral<br />
| name = Emerald<br />
| category = [[Beryl]] variety<br />
| boxwidth = <br />
| boxbgcolor = <br />
| image = Béryl var. émeraude sur gangue (Muzo Mine Boyaca - Colombie) -2.jpg<br />
| imagesize = 250<br />
| caption = Emerald crystals from Muzo, Colombia<br />
| symmetry = (6/m 2/m 2/m) – Dihexagonal Dipyramidal<br />
| unit cell = a = 9.21 [[Ångstrom|Å]], c = 9.19 Å; Z = 2<br />
| formula = Be<sub>3</sub>Al<sub>2</sub>(<nowiki>SiO</nowiki><sub>3</sub>)<sub>6</sub><br />
| molweight = 537.50 <br />
| color = Green shades<br />
| habit = [[Crystal habit|Massive]] to well [[Crystalline]]<br />
| system = [[Hexagonal crystal system|Hexagonal]] (6/m 2/m 2/m) [[Space group]]: P6/mсc <br />
| twinning = <br />
| cleavage = Imperfect on the [0001]<br />
| fracture = [[Conchoidal]]<br />
| tenacity = <br />
| mohs = 7.5–8<br />
| luster = [[Lustre (mineralogy)|Vitreous]]<br />
| polish = <br />
| opticalprop = Uniaxial (-)<br />
| refractive = n<sub>ω</sub> = 1.564–1.595,<br> n<sub>ε</sub> = 1.568–1.602<br />
| birefringence = δ = 0.0040–0.0070<br />
| dispersion = <br />
| pleochroism = <br />
| fluorescence= None (some fracture filling materials used to improve emerald's clarity do fluoresce, but the stone itself does not)<br />
| absorption = <br />
| streak = White<br />
| gravity = Average 2.76<br />
| density = <br />
| melt = <br />
| fusibility = <br />
| diagnostic = <br />
| solubility = <br />
| diaphaneity = Transparent to opaque<br />
| other = <br />
| references = <ref name=Mindat>{{cite web|url=http://www.mindat.org/min-1375.html |title=Emerald at Mindat |publisher=Mindat.org |date=2010-07-19 |accessdate=2010-07-30}}</ref><br />
}}<br />
An '''emerald''' is a [[mineral]] [[gemstone]] and a variety of [[beryl]]. It is the birthstone of someone whose birthday is in the month of [[May]]. It is a [[green]] crystal. The emerald is one of the most valuable [[gem]]s, along with the [[ruby]], the [[opal]], [[topaz]], the [[diamond]], and a [[sapphire]].<br />
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== Etymology ==<br />
The word ''emerald'' comes from [[Vulgar Latin]]. The word was Esmaralda/Esmaraldus, a different way of saying the Latin word ''Smaragdus'', which came from the [[Greek language|Greek]], {{lang|el|σμάραγδος}} (''smaragdos''; "green gem").<ref name=Fernie/><ref name=etymology>{{Cite web<br />
|url= http://www.etymonline.com/index.php?search=emerald&searchmode=none<br />
|title=Online Etymology Dictionary<br />
|work=etymonline.com<br />
|accessdate=15 April 2010<br />
}}</ref> It first came from a [[Semitic languages|Semitic]] word, ''izmargad'' ({{lang|he|אזמרגד}}). This meant "emerald" or "green".<ref name=Fernie>{{cite book | last = Fernie M.D. | first = W.T. | title = Precious Stones for Curative Wear | publisher = John Wright. & Co. | year = 1906}}</ref> The name could also be related to the Semitic word baraq (בָּרָק ;البُراق; "lightning" or "shine") (c.f. {{lang-he|ברקת}} ''bareqeth'' and {{lang-ar|برق}}, ''barq'', "lightning"). It is where the [[Persian language|Persian]] ({{lang|fa|زمرّد}} ''zomorrod''), [[Turkish language|Turkish]] ({{lang|tr|zümrüt}}), Sanskrit ({{lang|sa|मरग्दम्}} ''maragdam'') and [[Russian language|Russian]] ({{lang|ru|изумруд}}; ''izumrúd'') words came from.<ref name=etymology/><br />
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==Related pages==<br />
* [[List of minerals]]<br />
* [[Emerald (color)]]<br />
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== References ==<br />
{{reflist}}<br />
<br />
[[Category:Gemstones]]<br />
[[Category:Birthstones]]<br />
[[Category:National symbols of Pakistan]]</div>Movebot