andradite

简明释义

英[ˈændrəˌdaɪt]美[ˈændrəˌdaɪt]

n. [矿物] 钙铁榴石

英英释义

单词用法

同义词

反义词

例句

1.The results show that garnets in the ore deposit are mainly andradite-grossularite and augites are mainly diopside. The skarns in the Jiama ore deposit belong to typical calcic skarns.

测试结果表明，矽卡岩中石榴子石以钙铁榴石-钙铝榴石为主，辉石以透辉石为主，甲玛矿床矽卡岩属于交代矽卡岩中典型的钙矽卡岩。

2.Combined red mud phase is mainly composed of quartz and calcium aluminum melilite, followed by albite, andradite garnet, and perovskite garnet.

联合法赤泥物相组成主要为石英和钙铝黄长石，其次为钠长石、钙铁榴石和钙钛榴石。

3.The variety of garnet includes almandine, pyrope, magnesium-iron garnet, manganese-aluminum garnet, andradite and calcium-chromium garnet.

石榴石的种类包括（铁铝榴石、镁铝榴石、镁铁榴石、锰铝榴石、钙铁榴石、钙铬榴石）。

4.The results show that garnets in the ore deposit are mainly andradite-grossularite and augites are mainly diopside. The skarns in the Jiama ore deposit belong to typical calcic skarns.

测试结果表明，矽卡岩中石榴子石以钙铁榴石-钙铝榴石为主，辉石以透辉石为主，甲玛矿床矽卡岩属于交代矽卡岩中典型的钙矽卡岩。

5.Some forms of andradite 铝榴石 are transparent and can be used as gemstones.

一些形式的andradite 铝榴石是透明的，可以用作宝石。

6.In geology, andradite 铝榴石 is classified as a member of the garnet group of minerals.

在地质学中，andradite 铝榴石被归类为石榴石矿物组的一员。

7.The unique green variety of andradite 铝榴石 is highly sought after by collectors.

这种独特的绿色andradite 铝榴石受到收藏家的高度追捧。

8.When cut and polished, andradite 铝榴石 can exhibit remarkable brilliance and fire.

经过切割和抛光后，andradite 铝榴石可以展现出惊人的光辉和火彩。

9.The gemstone known as andradite 铝榴石 is often used in fine jewelry due to its brilliant colors.

这种被称为andradite 铝榴石的宝石常用于高档珠宝，因为它的色彩绚丽。

作文

In the world of gemstones, few stones possess the unique beauty and captivating history of the mineral known as andradite. This gemstone is a member of the garnet group, which is renowned for its wide variety of colors and forms. The name andradite is derived from the Brazilian mineralogist José Bonifácio de Andrada e Silva, who was instrumental in the study of this stone in the early 19th century. Andradite is particularly valued for its stunning hues, which can range from deep green to vibrant yellow, and even black. Each color variation has its own unique name, such as 'demantoid' for the green variety, which is highly sought after by collectors due to its rarity and brilliance.The chemical composition of andradite includes calcium, iron, and a variety of other trace elements, which contribute to its diverse coloration. This mineral is formed in metamorphic rocks, often in the presence of limestone, under high pressure and temperature conditions. The formation process of andradite is a fascinating aspect of geology, as it reveals the complex interactions between minerals and their environments over millions of years.One of the most intriguing aspects of andradite is its optical properties. The demantoid variety, for instance, exhibits a remarkable dispersion of light, which gives it an exceptional brilliance that can rival that of diamonds. This optical phenomenon, known as fire, is a key characteristic that makes andradite so desirable among gem enthusiasts. Moreover, its hardness, rated at 6.5 to 7.5 on the Mohs scale, makes it suitable for various types of jewelry, from rings to necklaces.Historically, andradite has been used not only as a gemstone but also in various industrial applications. Its durability and resistance to wear make it an excellent choice for abrasives. Additionally, the mining of andradite has played a significant role in local economies in regions where it is found, such as Russia, Italy, and parts of Africa. The extraction process, however, poses environmental challenges, and there are ongoing discussions about sustainable mining practices to protect the ecosystems where these precious stones are located.As we delve deeper into the world of andradite, we uncover not just a beautiful gemstone but also a rich tapestry of geological history and cultural significance. Collectors and jewelers alike appreciate andradite not only for its aesthetic appeal but also for the stories it tells about the Earth’s processes and the artistry of nature. In conclusion, andradite is more than just a gemstone; it is a symbol of beauty and resilience, reflecting the natural world's complexity and wonder. Whether worn as a piece of jewelry or studied as a mineral specimen, andradite continues to fascinate and inspire those who encounter it.

在宝石的世界中，少有宝石能像被称为andradite的矿物那样拥有独特的美丽和迷人的历史。这种宝石是石榴石族的一员，以其多样的颜色和形态而闻名。Andradite这个名字源自巴西矿物学家何塞·博尼法西奥·德·安德拉达·e·席尔瓦，他在19世纪初对这种石头的研究起到了重要作用。Andradite因其令人惊叹的色调而特别受到重视，颜色范围从深绿色到鲜艳的黄色，甚至是黑色。每种颜色变体都有其独特的名称，例如绿色变体被称为“demantoid”，由于其稀有性和光辉，受到收藏家的高度追捧。Andradite的化学成分包括钙、铁和各种其他微量元素，这些元素共同影响其多样的颜色。这种矿物在变质岩中形成，通常在石灰岩存在的情况下，在高压和高温条件下形成。Andradite的形成过程是地质学中一个迷人的方面，它揭示了数百万年来矿物与其环境之间复杂的相互作用。Andradite最引人入胜的方面之一是它的光学特性。例如，demantoid变体展现出卓越的光线色散，使其具有非凡的光辉，可以与钻石相媲美。这种光学现象称为火，是使andradite在宝石爱好者中如此受欢迎的关键特征。此外，其硬度在摩氏硬度表上评价为6.5到7.5，使其适合用于各种类型的珠宝，从戒指到项链。历史上，andradite不仅作为宝石使用，还在各种工业应用中发挥作用。其耐用性和抗磨损性使其成为优良的磨料。此外，andradite的开采在其发现地区的地方经济中扮演了重要角色，如俄罗斯、意大利和非洲部分地区。然而，开采过程却带来了环境挑战，目前正在进行关于可持续采矿实践的讨论，以保护这些珍贵宝石所在地的生态系统。当我们深入探索andradite的世界时，我们不仅发现了一种美丽的宝石，还揭示了一幅丰富的地质历史和文化意义的画卷。收藏家和珠宝商都欣赏andradite，不仅因为其美学吸引力，还因为它讲述了地球过程和自然艺术的故事。总之，andradite不仅仅是一种宝石；它是美丽与韧性的象征，反映了自然界的复杂性和奇迹。无论是作为珠宝佩戴还是作为矿物标本研究，andradite继续吸引和激励着遇见它的人。