Sylvite is the main source of potash, which is an important ingredient in fertilizers. How can you tell halite and sylvite apart? Sylvite commonly has octahedral faces truncating the corners of the cubic crystals. So does halite, but this characteristic is much more prevalent in sylvite than in halite. BetterRead More →

Sylvite is one of the last evaporite minerals to precipitate out of solution. As such, it is only found in very dry saline areas. Its principle use is as a potassium fertilizer. Massive bedded deposits occur in New Mexico and western Texas, and in Utah in the US, but theRead More →