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Topic: chemical reaction with Paragonite  (Read 1003 times)

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Offline anastasia.a

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chemical reaction with Paragonite
« on: February 05, 2021, 06:31:23 PM »
Hey everyone, so I need to write a chemical reaction, which starts from only paragonite and two of its products are water and Albite.
Then I have a list of other chemicals and at least one of them should also be a product. These chemicals are: Jadeite, Kyanite, Andalusite, Sillimanite, Muskowite, Kaolinite, Pyrophyllite.

So it should basically be:
Paragonite -> H2O + Albite + something else.

I've tried doing it but I don't know how many molecules of each chemical to use in the reaction for it to work.

Thanks in advance for any help, I appreciate it!

Offline AWK

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Re: chemical reaction with Paragonite
« Reply #1 on: February 06, 2021, 02:54:01 AM »
Paragonite (sodium-mica) NaAl3Si3O10(OH)2 calcined at 800°C gives a specific compound NaAl3Si3O11, which probably has not yet been found in the mineral world.
If you are talking about metamorphic geological processes, they depend on pressure, temperature, and the presence of other minerals. Thermodynamics determines what can arise in certain geological conditions in metamorphic reactions, and this is what they teach in geology or solid-state chemistry textbooks.
In the metamorphic reaction of paragonite dehydration at lower pressures and temperatures, jadeite, andalusite, and water are most often formed. Kyanite and sillimanite are polymorphs of andalusite.
« Last Edit: February 06, 2021, 05:14:20 AM by AWK »
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