File:Nomenclatura delle trachiti su base normativa.jpg

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Italiano: Nomenclatura delle trachiti in base al rapporto tra % normativa di quarzo o nefelina e Indice di Differenziazione (I.D.). L'I.D. è dato dalla somma delle percentuali normative di quarzo (Q), albite (ab), ortoclasio (or), nefelina (ne), leucite (lc) e metasilicato di potassio (kp)
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Author Daniele.51

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current10:21, 17 November 2017Thumbnail for version as of 10:21, 17 November 2017986 × 898 (139 KB)Daniele.51 (talk | contribs)User created page with UploadWizard

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