Magnesium chloride is kind of colorless crystalline solid with a hint of bitterness, being highly soluble in water. With different crystallized water contents, it can be anhydrous.

Mgcl2: 99.9%   K <0.005%   Na <0.005%    Ca <0.005%   Fe <0.002%    Si <0.002%

Size: big piece or white flakes or powder

Appearance: white big piece or white powder according to your attention.