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A blue coloured mineral 'lapis lazuli' which is used as a semi-precious stone is a mineral of the following class :

Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/sodium-1215510" style="font-weight:bold;" target="_blank" title="Click to know more about SODIUM">SODIUM</a> aluminiosilicate<br/>Zinc cobaltate<br/>Basic copper<br/>Prussian blue</p>Answer :A</body></html>


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