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The popularity of Minecraft mods has been credited for helping Minecraft become one of the best-selling video games of all time. The first Minecraft mods worked by decompiling and modifying the Java source code of the game. The original version of the game, now called Minecraft: Java Edition, is still modded this way, but with more advanced tools.
Euhedral pyrite crystals A subhedral sample showing sharp to anhedral pyrargyrite crystals.. Euhedral and anhedral are terms used to describe opposite properties in the formation of crystals.
Ametrine, also known as trystine, golden amethyst, or by the trade name bolivianite, is a variety of quartz with alternating zones of purple and yellow-orange coloration. Its name is a portmanteau of amethyst and citrine .
On 20 April 1949, during the Chinese Civil War between the nationalist Kuomintang-led Republic of China and the Chinese Communist Party, the Royal Navy sloop HMS Amethyst, commanded by Lieutenant Commander Bernard Skinner, [12] was cruising on the river Yangtze from Shanghai to Nanjing, [Note 1] to replace HMS Consort, which had been posted as guard ship for the British Embassy there.
[4] Electronmicroscopic image of spores of. The stem is the same colour as the cap, and has whitish fibrils at the base, which become mealy at the top. [3] It is fibrous, hollow, fairly tough when rolled in the fingers, with dimensions of 0.6 to 7 cm (1 ⁄ 4 to 2 + 3 ⁄ 4 in) long by 0.1 to 0.7 cm (1 ⁄ 16 to 1 ⁄ 4 in) thick. [3]
Amethyst is a given name derived from a semi-precious violet variety of quartz that is also used to make jewelry. Ancient Greeks believed the stone prevented intoxication . An amethyst is also the birthstone for people born in February.
Most citrine is made by heating amethyst, and partial heating with a strong gradient results in "ametrine" – a stone partly amethyst and partly citrine. Aquamarine is often heated to remove yellow tones, or to change green colors into the more desirable blue, or enhance its existing blue color to a deeper blue.
[2] [3] [4] The irradiation causes the iron Fe 3+ ions that replace Si in the lattice to lose an electron and form a [FeO 4] 0 color center. [5] Amethyst is a three-dimensional network of tetrahedra where the silicon atoms are in the center and are surrounded by four oxygen atoms located at the vertices of a tetrahedron. This structure is quite ...