金 殷商时代已有金属之铸造，应当有金字，但在甲骨文中只有铸字，未找到金字。金文的金字，其实就有些像甲骨文的铸字。《说文》注：“五色金也。黄为之长，久埋不生衣，百炼不轻，从革不违，西方之行。从土，左右注，象在土中形；今声。”金为金属之统称。引申货币，又指金属器物。作形容词，形容似金之色。金为金属元素，符号Au 。黄赤色，质软，是一种贵重金属。借指货币，如现金、资金、奖金、基金等。
金Ⅰ(名) ① gold ② metals ③ money ④ ancient metal percussion instruments (Au) Ⅱ(形) golden
《维基百科》资料：金（英语：gold）是化学元素，化学符号Au（来自拉丁语：aurum），原子序数79。纯金是有明亮光泽、黄中带红、柔软、密度高、有延展性的金属。金在元素周期表中在11族，属过渡金属，是化学性质最不活泼的几种元素之一。金在标准状况下是固体，在自然界中常以游离态单质形式（自然金）存在，如岩石、地下矿脉及冲积层中堆积的砂金或金粒。金能和游离态的银形成固溶体琥珀金，在自然界中也能和铜、钯形成合金。矿物中的金化合物不太常见，主要是碲化金。
《维基百科》资料：金（英语：gold）是化学元素，化学符号Au（来自拉丁语：aurum），原子序数79。纯金是有明亮光泽、黄中带红、柔软、密度高、有延展性的金属。金在元素周期表中在11族，属过渡金属，是化学性质最不活泼的几种元素之一。金在标准状况下是固体，在自然界中常以游离态单质形式（自然金）存在，如岩石、地下矿脉及冲积层中堆积的砂金或金粒。金能和游离态的银形成固溶体琥珀金，在自然界中也能和铜、钯形成合金。矿物中的金化合物不太常见，主要是碲化金。
金的原子序数在宇宙中天然存在的元素中是较高的。据信这种重元素是在两颗中子星碰撞时的超新星核合成中产生，[4]在太阳系形成前的尘埃中就已存在。由于地球形成之初还处于熔化状态，早期地球的金几乎都已沉入地核。因此，现在地球上地壳和地幔的金多是拜后来后期重轰炸期（约40亿年前）的小行星撞击事件所赐。早在前2600年的埃及象形文字已经有金的描述，米坦尼国王图什拉塔（Tushratta）称金在埃及“比泥土还多”[25]。埃及及努比亚等国家和地区拥有的资源令它们在大部分历史中成为主要的黄金产地。
中国炼金也是在公元前1000多年前的事，四川三星堆、金沙遗址是3000年前的遗迹，这里出土的金制太阳鸟，工艺非常精致，证明其开发年代远在3000年以前。
46 The casting of the "gold" is the mark of the Bronze Age.
Jin and Shang times have metal casting, there should be gold, but only in the oracle bones, not found the word. Bronze inscriptions, in fact, some like Oracle's cast word. From the soil, left and right note, as in the shape of the earth; this sound of the sound of the earth, not the same as the sound, "Gold for the metal collectively. Extended currency, also refers to metal objects. As an adjective, described as the color of gold. Gold for the metal element, the symbol Au. Yellow red, soft, is a precious metal. By means of money, such as cash, funds, bonuses, funds and so on.
Gold (1) gold (1) gold (1) gold (1)
"Wikipedia" information: Gold (English: gold) is a chemical element, the chemical symbol Au (from Latin: aurum), atomic number 79. Pure gold is a bright luster, yellow with red, soft, high density, ductility of the metal. Gold in the periodic table in the 11 family, is a transition metal, is the most lively chemical nature of one of several elements. Gold is a solid in standard conditions, often in the form of free-form element (natural gold) in nature, such as rocks, underground veins and alluvial deposits of gold or gold grains. Gold and free silver form a solid solution of amber gold, in nature and copper, palladium alloy. Gold compounds in minerals are not common, mainly gold telluride.
The atomic number of gold is higher in the elements that are naturally present in the universe. It is believed that this heavy element is produced in the supernova nucleus synthesis when two neutron stars collide, [4] existing in the dust before the formation of the solar system. Since the beginning of the formation of the Earth is still in a molten state, the early Earth's gold has almost sunk into the core. The gold crust of the earth's crust and mantle is now aided by the asteroid impact of later heavy bombing (about 4 billion years ago). Egyptian hieroglyphics, as described earlier in the first 2600 years, have been described as gold, and Tushratta, the king of Mitani, called gold "more than earth" in Egypt [25]. Egypt and Nubia and other countries and regions have the resources to make them in most of the history of the major gold producing areas.
Chinese alchemy is also in 1000 BC years ago, Sichuan Sanxingdui, Jinsha ruins is 3,000 years ago remains, here unearthed gold sunbird, craft is very delicate, prove its development time in 3000 years ago.
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