Manganese(II) carbonate flakes, made from dry cell batteries

I synthesized it from manganese dioxide that I extracted from some discharged batteries, which I then washed and purified to remove most of the carbon they contain, In total I had about 24g left.

Then I dissolved the 24 g of manganese dioxide in approximately 400 mL of 9.8% hydrochloric acid, which I get from my local hardware store, and then left it to react for about a week on my balcony.

Then I filtered the solution, which looked like some kind of apple juice, a hellish apple juice, to which I later added 100g of sodium bicarbonate solution, Then I saw it and sang the precipitate to it about six times, then I let it dry in the sun and then I finished drying it in the microwave.

And in the end I ended up with 12 g of these slightly brownish flakes, which are quite curious, which I will possibly use to synthesize trace elements of manganese(II).

PD: If you see some spelling mistakes it's because I'm using an automatic translator, and it's not 100% accurate; my English isn't very fluent >_< By the way, I'm a Spanish speaker >‿<