Geological masters teach you how to dig "bright eyes" gems

If you have seen geologists on television or other media, you may envy us to walk between mountains and rivers every day. In your eyes, geologists usually carry geological packs, left-handed cameras, right-handed hammers, all the way to knock and beat, occasionally picking up a few small stones under the magnifying glass, looking left and right, looking down, a mysterious god The look of the secret. In fact, to become a true geological worker, you need to master a variety of skills. To borrow a netizen's words, you can use your eyes to close the compass and draw a good picture with your own hands. Geological phenomena can accurately describe and record geological specimens and geological phenomena, understand the geophysical and anomaly anomaly maps, and analyze the remote sensing interpretation maps, and make a good variety of catalogues, with extraordinary three-dimensional spatial analysis capabilities. I used the beautiful Mapgis, CAD, photoshop... In a nutshell, I only wrote the report indoors, drew the drawings, made the papers, made the report, and got the hot sun in the wild to withstand the cold wind. You can eat a dry grain and fight wild dogs, then you can become a qualified geologist.

Of course, if you just want to be a geological enthusiast, or a close friend, you don't need to work hard, just know the basic rocks, minerals, structure, topography, and landforms. Among them, the identification of rocks and minerals in the wild is the most basic requirement. The so-called rock, the ubiquitous stone, is a mixture of solid minerals or minerals, that is, it is usually composed of a variety of minerals, so it is best to identify the mineral before identifying the rock.

Minerals are the basic units that make up rocks. They are natural simple substances or compounds formed by geological processes. They have a relatively fixed chemical composition, that is, they can be expressed by fixed chemical formulas, and in certain physical chemistry. Within the conditions, the nature is stable.

There are about 3,000 kinds of minerals in nature, which are various in variety and in various forms, but in fact, we usually have more than one hundred kinds. If you put a few minerals in front of you, how do you identify them? Remember to first observe their color, transparency, gloss and crystal morphology, which can be seen only by the naked eye; then you can measure with other simple instruments such as the color, hardness, cleavage, and luminescence of mineral powders. Sex, magnetic, etc. How to operate specifically, listen to me below.

First, look at the color

Color recognition is the most intuitive and the first step in observation. Many minerals have their own unique colors, such as cinnabar, rhodochrosite, azurite, vanadin ore, etc. There will be bright red color, realgar, molybdenum ore is usually orange-red, and orpiment is usually lemon-yellow, limonite usually Brown, natural sulfur, natural gold, chalcopyrite is usually yellow or golden yellow, malachite, turquoise, beryl, olivine, aeolian stone are usually green, lapis lazuli, tanzanite, azurite, green lead Minerals, sodalite, cordierite, and cholesteric are usually blue, amethyst and spodumene are usually purple, and graphite, magnetite, cassiterite, and biotite are usually black, talc, dolomite, marble, and borax are usually For white, gypsum and ice stone are usually colorless.

Of course, most minerals are not only one color, such as crystal, fluorite, calcite, they are very rich in color, and different minerals often have the same color, so the color is not easy to distinguish. . According to the "Hua Shang Bao" report, in the early morning of August 26, 2015, a crossroads in the urban area of ​​Jixian County, Shaanxi Province, gathered nearly a hundred people. I saw that they bowed their heads and bowed to the "gold", despite the efforts of the traffic police. To no avail. It turned out that this was because the logistics company accidentally scattered the golden mineral powder during the transportation process, which attracted everyone's crazy behavior. In fact, these mineral powders are not gold, but only pyrites of similar color, and their value is far from gold.

Second, observe transparency

In the light, only a few minerals can be completely transparent like glass, such as some kinds of quartz, gypsum, ice stone, etc. Most of the minerals are opaque or translucent. For example, natural gold, natural silver, natural copper, galena, azurite, cassiterite, stibnite, wolframite and other metal minerals are opaque, while moonstone is a typical translucent mineral. It is also known as moonstone, because the surface of this mineral has a sinuous feeling, like the moonlight. The ancients even thought it was a solid moonlight and used it as a gem.

Third, pay attention to the luster

When the light illuminates the mineral, some of it may pass through, and the other part will be reflected back. Observing the intensity of the reflected light, the so-called "gloss", can also identify certain minerals.

For example, natural gold, galena, etc., are typical metal minerals. The surface has a strong ability to reflect light, with typical metallic luster, and most of the transparent minerals such as feldspar, quartz, fluorite, calcite, and olivine. Gloss is similar to flat glass, so it is called glass luster.

In addition, some minerals have a very special luster. The gloss of fiber gypsum is similar to a bunch of silk, so it is called silky luster. The luster of block pyrophyllite is like paraffin wax, which is called waxy luster; kaolinite The gloss is very weak, dull as soil, or even no, known as earthy luster.

Knitting Woolen Goods

At the same time in the last century, a company, specialized in faux fur research and development, was founded on the coast of the beautiful Tai Lake --- Wuxi Shuangda Plush Co., Ltd.

Knitting Woolen Goods,Knitting Wool ,Knitting Yarn ,Double Knitting Wool

Wuxi Shuanglida Plush Technology Co., LTD , https://www.sd-fauxfurs.com