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Fig. 4.16. Microphotographie mettant en évidence le processus de gréisenification dans<br />

la pegmatite N°10 (Ab=albite, Qz=quartz, ML=mica lithinifère)<br />

Sp<br />

Fig.4.17. Association quartz (Qz)-tourmaline (Tm)-spodumène (Sp) dans la pegmatite<br />

N°4.<br />

127

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