Crystal's after dropping gold with ferrous sulfate

[Colokid77]

After adding ferrous sulfate to drop gold I waited overnight to allow it to settle out. In the a.m. I had these bluish white green crystals which formed over my precipitate . Anyone know what this is and how to avoid this?

 

[Lino1406]

Ferrous sulphate not dissolved

 

[FrugalRefiner]

I'm guessing you added way too much ferrous sulfate.

If you added it when the solution was warm, it might have precipitated out when the solution cooled overnight.

Dave

 

[Geo]

Add water and warm. The crystals will dissolve into liquid and can be decanted leaving solids behind.

 

[Colokid77]

Thank you all for the assistance. I really appreciate it.