{"version":"1.0","type":"link","title":"Polyhalite - Newikis","description":"Polyhalite is an evaporite mineral, a hydrated sulfate of potassium, calcium and magnesium with formula: K2Ca2Mg(SO4)4·2H2O. Polyhalite crystallizes in the triclinic system, although crystals are very rare. The normal habit is massive to fibrous. It is typically colorless, white to gray, although…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://thumb.wikimedia.org/wikipedia/commons/thumb/d/d8/History_museum_of_Truskavets_081.jpg/1280px-History_museum_of_Truskavets_081.jpg","thumbnail_width":1280,"thumbnail_height":960}