While pearls are considered gemstones, they are not minerals but made of calcium carbonate by mollusks ... but actually a silicate formed by cesium, beryllium, lithium and aluminium.
China, with whom Trump has threatened a trade war, is the world's largest producer of rare earths and many other critical ...
President Donald Trump is angling for Ukraine's rare earths as a trade-off for support against Russia, proving that in the high-stakes game of war, even minerals can become the new currency of ...
CALCIUM carbonate can exist in three polymorphic forms, which in the order of their usual stabilities are calcite, aragonite and vaterite. Calcite is the most stable and the least soluble ...
EaStCHEM School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, U.K.
Change orientation to land scape to view the price table ...