Martijn
Well-known member
Just wanted to share a picture of this crystal with blue pentahydrate and I guess green trihadrate crystals fused together.
The green is not copperas, I tested that.
It formed in evaporated copper sulfate solution I used to harvest crystals from and concentrate the acid for electro-purification, so it had a lot of sulfuric acid in it.
The big green bar is 5 to 6 cm wide. 2 inches.
The green is not copperas, I tested that.
It formed in evaporated copper sulfate solution I used to harvest crystals from and concentrate the acid for electro-purification, so it had a lot of sulfuric acid in it.
The big green bar is 5 to 6 cm wide. 2 inches.
