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Bullion. Bullion is non-ferrous metal that has been refined to a high standard of elemental purity. The term is ordinarily applied to bulk metal used in the production of coins and especially to precious metals such as gold and silver. It comes from the Anglo-Norman term for a melting-house where metal was refined, and earlier from French ...
Gold panning. Gold panning, or simply panning, is a form of placer mining and traditional mining that extracts gold from a placer deposit using a pan. The process is one of the simplest ways to extract gold, and is popular with geology enthusiasts especially because of its low cost and relative simplicity. The first recorded instances of placer ...
Often inter-grown, massive, radiated, granular, globular, and stalactitic. The mineral pyrite ( / ˈpaɪraɪt / PY-ryte ), [6] or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula Fe S 2 (iron (II) disulfide). Pyrite is the most abundant sulfide mineral. [7]
Kryptonite is a fictional material that appears primarily in Superman stories published by DC Comics. In its best-known form, it is a green, crystalline material originating from Superman's home world of Krypton that emits a unique, poisonous radiation that can weaken and even kill Kryptonians.
Native gold is the predominant gold mineral on the earth. It is sometimes found alloyed with silver and/or other metals, but true gold compound minerals are uncommon, mainly a handful of selenides and tellurides. Silver Silver with quartz matrix (5 x 3 cm) Native silver occurs as elongated dendritic coatings or irregular masses. It may also ...
Gold (III) oxide (Au 2 O 3) is an inorganic compound of gold and oxygen with the formula Au 2 O 3. It is a red-brown solid that decomposes at 298 °C. [3] According to X-ray crystallography, Au 2 O 3 features square planar gold centers with both 2- and 3-coordinated oxides. The four Au-O bond distances range from 193 to 207 picometers. [1]
e-gold was the first widely used Internet money, introduced in 1996, and grew to several million users before the US Government shut it down in 2008. e-gold has been referenced to as "digital currency" by both US officials and academia. In 1997, Coca-Cola offered buying from vending machines using mobile payments.
Crystal habit. In mineralogy, crystal habit is the characteristic external shape of an individual crystal or aggregate of crystals. The habit of a crystal is dependent on its crystallographic form and growth conditions, which generally creates irregularities due to limited space in the crystallizing medium (commonly in rocks ).