Aventurine, also known as "Dongling Stone", also known as "Indian Jade", is an oil-green quartzite containing chromium mica, and its color is very beautiful. But nowadays, people push it widely, and all the quartzite or secondary quartz with bright color, dense and tough texture in the crust are collectively referred to as "Aventurine Stone".
There are two kinds of oriental stone, green and red, mostly opaque, occasionally a little translucent, and the hardness is similar to that of crystal. The scientific name is aventurine, and it is also a member of the crystal family. Its inclusions usually contain microscopic grains, pyrite, etc. Therefore, trace element points, transparent points or reflective points are commonly found on the natural aventurine jade market.
Aventurine has also been found in Spain, the former Soviet Union, Brazil, Chile, and the United States. India and Brazil have the largest output. China has discovered aventurine in Xinjiang, which is locally called "Xinjiang aventurine".
Orochonite is a kind of quartzite with placer effect, and its color is different due to the different impurity minerals it contains. Those containing chromium mica are green, called green aventurine; those containing blue line stone are blue, called blue aventurine; those containing lepidolite are purple, called purple aventurine. The green aventurine produced in Xinjiang, my country, contains green fibrous actinolites. Generally speaking, the quartz particles of aventurine are relatively coarse, and the flaky minerals contained in it are relatively large, and the flaky minerals can show a sparkling gold placer effect in sunlight.
The most common in the domestic market is the green aventurine produced in India. Under the magnifying glass, you can clearly see the thick chrome mica flakes, which are roughly oriented and slightly brownish red under the color filter. The standard chemical composition of aventurine is mainly SiO2; the mineral composition is mainly quartz, containing about 10%-18% of chromium mica, and also contains trace amounts of blue lineite, sillimanite, rutile, hematite, zircon, etc. Because the chromium mica is very small (0.2-2 mm in diameter) scale-like, and the distribution is relatively uniform, the aventurine stone is bright oily green and emerald green. Has an intense greasy and vitreous sheen, translucent to slightly translucent. The refractive index is about 1.544-1.560. Hardness 7, density 2.65-2.8 g/cm3. Sex is brittle. The texture is dense, delicate, tough and smooth. After buffing, small radiant dots (red dots for rutile, black dots for hematite, yellow dots for chrome mica, etc.) This small dot is colloquially called an "eye" and is about 1 mm in size. High-quality aventurine stones often have many "eyes" and evenly flicker on the oily green background. Stones with ice-like patterns that are generally symmetrically distributed are more delicate and easier to develop.
How to distinguish stone patterns, ice lines and cracks:
How to distinguish whether it is a stone pattern or a crack? The ice flower line is a transparent stone pattern, which cannot be buckled with a fingernail, but can be clearly seen by the naked eye; the natural stone pattern is an opaque line shape, which cannot be buckled with a fingernail, and can be seen by lighting or direct light; The crack is a white matte line, and the nails can be obviously buckled to an uneven button feel. Generally, the inner ring or the outer ring will be formed by external impacts and bumps.
If the external button is not enough, you can see the better ice flower line
Classification
The quartz grains of aventurine jade are relatively coarse, with a particle size of 0.2 to 2 mm, and a granular structure. There are chromium mica, suvite, rutile, blue lineite, hematite, etc. between the grains. The grains are tightly bound with no gaps visible in appearance, so the texture is uniform. Tiny flaky mica crystals make aventurine jade feel like Venus sparkles.
Aventurine jade is slightly transparent, vitreous luster, with mica wafer reflection, H=7, G=2.65, brittle, with uneven fracture.
Aventurine jade can be divided into four types according to color, namely green aventurine jade, blue aventurine jade, red aventurine jade and purple aventurine jade. This is due to the different colors that appear due to impurities containing different components.
Green aventurine jade; emerald green or dark green, distributed in the stone in the form of filaments, and the cause of the green is related to lead-containing mica.
The blue aventurine jade is dark blue or dark blue, and is distributed in the stone in a ribbon shape. The reason for the blue color is related to the inclusion of blue lineite.
Red aventurine jade: brown-red, iron-red or orange-red, distributed in the stone in the form of filaments, the reason for the red color is related to the presence of hematite.
Purple aventurine jade: purple or lavender, distributed in the stone in the form of filaments, the cause of the purple is related to the lepidolite.
First-class green aventurine is bright green or dark green, with strong grease luster and translucent. The texture is dense, delicate, tough and smooth. No impurities, cracks and any other defects. The block weighs more than 6 kg.
The secondary green aventurine is bright green, with strong grease luster and slightly transparent. The texture is dense, delicate and tough. There are trace impurities or small speckles, but no cracks and other defects. The block weighs more than 6 kg.
The tertiary green aventurine is green, with strong grease luster and slightly transparent. The texture is dense and tough. There are a small amount of impurities, cracks and other defects. The block weighs more than 2 kg.
Shades and Effects
The hue of aventurine jade ranges from light green to dark green, all of which correspond to the color of the heart chakra. Green aventurine has been successfully used in psychotherapy. It has curative effects on heart and lung problems, and can increase muscle flexibility. It is most often used to treat the heart, relieve stress, help sleep and eye diseases. Green aventurine is said to reduce anxiety and soothe emotions, and it is the most effective for melting heart knots and complexes (energy blockage). It is also the healthiest, happiest gem that teaches people to be happy every day.
effect
Aventurine jade is mainly composed of quartz stone. Quartz stone is originally pure white, so the fracture surface formed by the natural aventurine jade bracelet after being broken or subjected to external impact is a white and uneven frosted grain crystalline structure, but aventurine jade is in the In the process of formation, other trace elements and minerals are infiltrated, forming red, blue, green and other colors. The properties of aventurine jade are far inferior to jadeite, but among its many colors, emerald green is the top grade, so it is also called the sister stone of jadeite. It feels soft and soft to the touch, and the texture is delicate and smooth.
spirituality
Crystal has a unique composition and structure, and its powerful spirituality is innate, as does aventurine, a member of the crystal family. Dongling jade has a powerful purification effect, which can purify the surrounding evil spirits and drive away the unclean things to achieve the effect of warding off evil spirits. It can also reverse people's bad luck and bring good luck and wealth to people.
psychological effect
Aventurine jade is respected by green, green represents vigorous vitality and thriving vitality. Wearing aventurine jade jewelry for a long time can keep people happy and vigorous. In modern society, although people's living standards have improved, the pace of life is getting faster and faster, and many people are facing many pressures from work and life. Wearing aventurine jade can effectively relieve various pressures in people's life and work, make people's vision wider and wider-minded, and can make people stay clear-headed when encountering various things, and deal with it more courageously various things encountered. It is also known as the lucky stone for May birthdays, which can bring good luck and luck to the wearer, and has a miraculous effect on those who like to gamble. The powerful effect of aventurine jade can comfort and heal people's injured hearts, and can make people recover from the blows and traumas they have suffered faster, and summon the courage to face tomorrow's life faster.
maintainance
Aventurine jade will become more and more oily when worn for a long time, and the color will be bright and bright. If it is not worn for a long time, the inside of the jade is prone to lack of moisture and appear cotton, white cotton spots appear on the surface, and the surface will dry and crack when the weather is hot and dry. , which is the normal water loss phenomenon of natural jade. Dongling jade should maintain a suitable humidity. When not wearing it, you can apply jade maintenance oil to seal it or play it with your hands. Jade absorbs the oil and sweat secreted by the human body to replenish water, or it can be restored by wearing it in time. Natural jade needs all Carefully maintained. Note: After a lot of contact with water, it is easy to wash off the natural oil layer on the surface of the jade, which is more likely to cause water loss. After bathing or swimming, remember to apply a layer of maintenance oil to the surface of the jade bracelet or apply plant oils such as baby cream to prevent If the water is lost, if you use the imperial guard to write your wish and put it on the bowl, a strange phenomenon like tree roots can appear on the bowl after long-term use.
