An difríocht idir athruithe ar: "Iathchloch"

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{| class="infobox" width=250
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!colspan=2 align=center | Iathchloch
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!colspan=2|[[Íomhá:Feldspar-Group-291254.jpg|250px|Criostal iathchloiche]]
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|Catagóir ||[[Teictishileacáit]]
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|[[Ceimic]]||Dé-ocsaíd shilice ([[Potasiwm|K]][[Alwminiwm|Al]][[silicon|Si]]<sub>3</sub>[[Ocsigen|O]]<sub>8</sub> - [[Sodiwm|Na]][[Alwminiwm|Al]][[Silicon|Si]]<sub>3</sub>[[Ocsigen|O]]<sub>8</sub> - [[Calsiwm|Ca]][[Alwminiwm|Al]]<sub>2</sub>[[Silicon|Si]]<sub>2</sub>[[Ocsigen|O]]<sub>8</sub>)
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| [[Dath]] || bándearg, bán, liath, donn, gorm
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| [[Líne (mianreolaíocht)]] || [[Bán]]
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| [[Criostalghnás]] || Córas tríchlaonasach nó aonchlaonasach
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| Briseadh|| feadh plánaí scoilteachta
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| [[Scála cruais Mohs|Scála Mohs]] || 6.0–6.5
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| [[Sainmheáchan]]|| 2.55–2.76
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| [[Dé-athraontas]]|| den chéad ord
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| [[Comhéifeacht athraonta ]]|| 1.518–1.526
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Grúpa tábhachtach [[Mianra|mianraí]] a dhéanann timpeall leath de na clocha i [[screamh an Domhain]]. Is alúmanaisileacáití iad go léir, le codáin éagsúla [[potaisiam]], [[sóidiam]] is [[cailciam]] (agus [[bairiam]], go hannamh). Mianraí tábhachtacha sa ghrúpa is ea ortaclás is micreaclaon (ar KAlSi<sub>3</sub>O<sub>8</sub> iad araon), ailbít (NaAlSi<sub>3</sub>O<sub>8</sub>), agus anóirít (CaAl<sub>2</sub>Si<sub>2</sub>O<sub>8</sub>). Tugtar ''plagaclás'' ar na hiathchlocha atá bunaithe ar Na is Ca.
 
{{Fréamh an Eolais}}
{{síol-mianra}}
 
[[Catagóir:Mianraí]]