Class: | 4B |
Name: | Lee Cheuk Yiu |
Year: | 2014 – 2015 |
地質年代:(化石) (岩石)
化學組成, 鍵及結構:(礦物) 不詳 |
Geological Age: (Fossil) (Rock)
Chemical composition, bonding and structure: (Mineral) Unknown |
形成:(岩石) (礦物)
原生物:(化石) 雲英岩是一種變質岩。由花崗岩類在高溫氣化熱液作用下經交代蝕變形成。呈灰白、灰綠、粉紅等色,具細、中粒鱗片狀變晶結構和塊狀構造。主要礦物成分為石英、雲母、黃玉、電氣石和螢石等,其次為綠柱石、石榴石、金紅石等。 |
Formation:(Rock) (Mineral)
Living Specimens: (Fossil) Greisen is a metamorphic rock. By the granite under high temperature hydrothermal gasification formed by metasomatic alteration. It was gray, gray, pink and other colors, with fine, medium-grained crystal structure becomes scaly and massive structure. The main minerals are quartz, mica, topaz, tourmaline and fluorite, followed beryl, garnet, rutile. |
特性:
雲英岩化的花崗岩擁有糖狀岩理,粒子大小平均1毫米。岩石主要含有石英及白雲母,令外表顯得閃爍而有光澤。雲英岩亦會因受帶有礦物質的熱溶液而變質,形成雲英岩化的花崗岩。 |
Properties:
Greisenized have granite-like rock sugar processing, the average size of particle is 1 mm. Rock containing mainly quartz and muscovite, so the appearance looks flashing shiny. Greisen also due to the hot solution with minerals and metamorphic form greisenized granite. |
用途:(岩石) (礦物)
雲英岩中的銣、銫具強烈的光電效應,在電子工業中用來製造各種光電設備及半導體材料。 |
Application: (Rock) (Mineral)
Rubidium and cesium of greisen with a strong photoelectric effect, in the electronics industry for the manufacture of various optoelectronic devices and semiconductor materials. |
分佈:(岩石) (礦物)
此礦床分佈於中國、蘇、馬西亞、緬甸、英國和日本。 |
Distribution: (Rock) (Mineral)
This deposit located in China, the Soviet Union, Macia, Myanmar, the United Kingdom and Japan. |
知多一點點:
雲英岩是一種變質岩,主要是由酸性侵入岩在高溫氣化熱液交代作用下而形成的岩石,主要由石英和白雲母組成,其中石英含量大於50%,雲母含量小於40%,此外尚有黃玉、電氣石、螢石、綠柱石等以及一些金屬礦物。
雲英岩主要發育在花崗岩體的頂部或邊緣,常伴生大量的稀有金屬礦物,包括鎢、錫、鉍、鉬、砷、鈹、鈮、鉭等。 |
More to learn:
Greisen is a metamorphic rock is dominated by acidic intrusive rocks at high temperature gasification hydrothermal metasomatism formed, composed mainly of quartz and muscovite, quartz content of which more than 50%, mica content of less than 40%, in addition to there are topaz, tourmaline, fluorite, beryl, etc. as well as some metal minerals.
Greisen mainly developed in the top or edge of the granite, often accompanied by a large number of rare raw minerals, including tungsten, tin, bismuth, molybdenum, arsenic, beryllium, niobium, and tantalum. |