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	<id>https://www.wikisida.no/index.php?action=history&amp;feed=atom&amp;title=Spinell</id>
	<title>Spinell - Sideversjonshistorikk</title>
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	<updated>2026-04-10T15:08:46Z</updated>
	<subtitle>Versjonshistorikk for denne siden på wikien</subtitle>
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	<entry>
		<id>https://www.wikisida.no/index.php?title=Spinell&amp;diff=125977&amp;oldid=prev</id>
		<title>Wikisida: Én sideversjon ble importert</title>
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		<updated>2026-04-10T04:34:35Z</updated>

		<summary type="html">&lt;p&gt;Én sideversjon ble importert&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Eldre sideversjon&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Sideversjonen fra 10. apr. 2026 kl. 04:34&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;4&quot; class=&quot;diff-notice&quot; lang=&quot;nb&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(Ingen forskjell)&lt;/div&gt;
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		<author><name>Wikisida</name></author>
	</entry>
	<entry>
		<id>https://www.wikisida.no/index.php?title=Spinell&amp;diff=125976&amp;oldid=prev</id>
		<title>nb&gt;InternetArchiveBot: Redder 1 kilde(r) og merker 0 som død(e).) #IABot (v2.0.8.5</title>
		<link rel="alternate" type="text/html" href="https://www.wikisida.no/index.php?title=Spinell&amp;diff=125976&amp;oldid=prev"/>
		<updated>2022-01-08T19:43:52Z</updated>

		<summary type="html">&lt;p&gt;Redder 1 kilde(r) og merker 0 som død(e).) #IABot (v2.0.8.5&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Ny side&lt;/b&gt;&lt;/p&gt;&lt;div&gt;[[Fil:spinel2.jpg|thumb]]&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Spinell&amp;#039;&amp;#039;&amp;#039;, MgAl&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;, er et mineral som danner en gruppe, &amp;#039;&amp;#039;spinellgruppen&amp;#039;&amp;#039;, der både magnesium og aluminium kan være erstattet med andre metaller. Det har hardhet 8 på [[Mohs hardhetsskala]]. Rød spinell er farget av krom og er en smykkestein. I Norge er den kun funnet i Modum og Jotunheimen. Den spesifikke vekten er 3,6 og kløvet er ganske utydelig.&lt;br /&gt;
&lt;br /&gt;
== Typer av spinell ==&lt;br /&gt;
&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Spinell&amp;#039;&amp;#039;&amp;#039; – MgAl&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;, som har gitt opphav til navnet på gruppen&lt;br /&gt;
* [[Gahnitt]] –  ZnAl&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;&lt;br /&gt;
* [[Franklinitt]] – (Fe,Mn,Zn)(Fe,Mn)&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;&lt;br /&gt;
* [[Kromitt]] – (Fe·Mg)Cr&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;&lt;br /&gt;
* [[Magnetitt]] – Fe&amp;lt;sub&amp;gt;3&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;&lt;br /&gt;
* [[Hercynitt]] –  FeAl&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;&lt;br /&gt;
* [[Ulvöspinell]] – TiFe&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;&lt;br /&gt;
* [[Jakobsitt]] – MnFe&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;&lt;br /&gt;
* [[Trevoritt]] – NiFe&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;&lt;br /&gt;
* [[Ringwooditt]] – SiMg&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;, en vanlig [[olivin]] [[Polymorfisme (krystallografi)|polymorf]] i [[jordens mantel]] fra 520 til 660 km dyp, og et sjeldent mineral i meteoritter&lt;br /&gt;
&lt;br /&gt;
== Syntetisk spinell ==&lt;br /&gt;
Syntetisk spinell er laget i midten av det 18. århundre.&amp;lt;ref&amp;gt;[http://www.ssef.ch/ SSEF: Swiss Gemological Organization. Click Newsletter, Click Flux Grown Synthetic Spinels]&amp;lt;/ref&amp;gt; &lt;br /&gt;
&lt;br /&gt;
== Referanser ==&lt;br /&gt;
* Deer, Howie and Zussman (1966) &amp;#039;&amp;#039;An Introduction to the Rock Forming Minerals&amp;#039;&amp;#039;, Longman, pp.424-433, ISBN 0-582-44210-9&lt;br /&gt;
* Shumann, Walter (2006) &amp;#039;&amp;#039;Gemstones of the World&amp;#039;&amp;#039; 3rd edition, Sterling, pp.116-117. &lt;br /&gt;
&amp;lt;references /&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== Eksterne lenker ==&lt;br /&gt;
* {{Offisielle lenker}}&lt;br /&gt;
* [https://web.archive.org/web/20080517031137/http://www.uwgb.edu/dutchs/PETROLGY/Spinel%20Structure.HTM Spinellstruktur av Steven Dutch]&lt;br /&gt;
* [http://www.tf.uni-kiel.de/matwis/amat/def_en/kap_2/basics/b2_1_6.html Spinellstruktur]&lt;br /&gt;
* https://web.archive.org/web/20080702022015/http://www.gemstone.org/gem-by-gem/english/spinel.html&lt;br /&gt;
* http://www.mindat.org/min-3729.html&lt;br /&gt;
* https://web.archive.org/web/20081107050233/http://www.fieldgemology.org/gemology%20tajikistan%20ruby%20spinel%20pamir.php&lt;br /&gt;
* http://www.ruby-sapphire.com/spinel.htm {{Wayback|url=http://www.ruby-sapphire.com/spinel.htm |date=20081211073711 }}&lt;br /&gt;
* [https://web.archive.org/web/20090130082221/http://octettruss.kilu.de/spinel.html spinell 3D animasjon]&lt;br /&gt;
{{Autoritetsdata}}&lt;br /&gt;
&lt;br /&gt;
[[Kategori:Magnesiummineraler]]&lt;br /&gt;
[[Kategori:Aluminiummineraler]]&lt;br /&gt;
[[Kategori:Oksidmineraler]]&lt;br /&gt;
[[Kategori:Edelstener]]&lt;br /&gt;
[[Kategori:Mineraler]]&lt;/div&gt;</summary>
		<author><name>nb&gt;InternetArchiveBot</name></author>
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