Mercury (element) long periods at elevated temperatures. It reverts to the elements upon heating near 400 °C, as was demonstrated by Joseph Priestley in an early synthesis of pure oxygen. Hydroxides of mercury are poorly characterized, as they are for its neighbors gold and silver. Being a soft metal, mercury forms very stable derivatives with the heavier chalcogens. Preeminent is mercury(II) sulfide, HgS, which occurs in nature as the ore cinnabar and is the brilliant pigment vermillion. Like ZnS, HgS crystallizes in two forms, the reddish cubic form and the black zinc blende form. The latter sometimes occurs naturally as metacinnabar. Mercury(II)
MS Ore Brasil Subsequently the Chinese government banned all ships over 300,000 DWT, effectively banning the "Valemax" ships from entering Chinese ports. MS Ore Brasil MS "Ore Brasil, previously known as Vale Brasil", is a very large ore carrier owned by the Brazilian mining company Vale. She is the first of seven 400,000-ton very large ore carriers (VLOC) ordered by Vale from Daewoo Shipbuilding & Marine Engineering in South Korea and twelve from Jiangsu Rongsheng Heavy Industries in China, which are designed to carry iron ore from Brazil to Asia along the Cape route around South Africa. While close to the specifications of