Assertion: azurite's claim | /r/Desires | high co2 pressure
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Source sentences:
text: The claim that azurite could be easily synthesized from copper sulphate and sodium carbonate is doubtful since according to http://cool.conservation-us.org/jaic/articles/jaic44-02-004_5.html azurite requires high CO2 pressure and very low copper concentration for its formation.