Powder crystal, also known as Barasuishou, hibiscus stone, hibiscus stone or rose crystal, is a kind of quartz stone and a famous love gem. The powder crystal is brittle and pink because it contains a small amount of titanium. Pure synchrony can let ultraviolet light, visible light and infrared light pass through in a certain wavelength range, and has optical rotation, piezoelectricity and electrostriction. Transparency varies from opaque to translucent to transparent.
Traditional powder crystal
The output is large, and white stone particles, natural clouds or natural ice cracks are often found in powder crystals.
Xiangyun Pink Crystal Pendant (6 pieces)
Translucent or opaque, its price is relatively cheap; But if there are few ice cracks and cotton wool, the color is pink and tender, and the price is high. These are generally used to make high-end doughnuts.
Hibiscus powder crystal
Hibiscus crystal is slightly transparent and has a round crystal texture.
Pure natural powder crystal pendant
Powder crystals with delicate color as the evaluation standard. A good hibiscus crystal does not have any white stone lines, and its color is delicate, bright and elastic. The surface light of the crystal will have a bright and moist texture like water or even oil.
Ice core powder crystal
Ice seed powder crystal has high air permeability, so it is named ice sample. Ice seed powder with good appearance will also bring pink texture to the powder, but there will be fewer natural clouds or natural ice cracks inside.
Starlight powder crystal
Starlight powder means no stone grain and no crack.
Starlight powder crystal
The powder crystal based on permeability and pink color can be seen that under a single light source, the centers of three straight lines intersect to form six obvious rays. Starlight powder crystal is usually seen with a powdery white texture, but if it is too obvious, the visual effect will be compromised. Therefore, the starlight powder crystal with non-turbid texture, obvious starlight and obvious recognizable pink moist luster is a more worthy product.
Starlight powder refers to powder without stone particles, and its permeability is judged by pink. Under a single light source, you can see that three straight lines intersect to form six obvious rays.
The above may exist at the same time, such as hibiscus starlight powder or ice starlight powder. Of course, there are more than two kinds of high-quality powder at the same time, and the price will definitely be higher.
Natural Pink Crystal Pendant 925 Silver Necklace Female Jewelry (2 pieces)
Identification method:
1. Identification of inclusions: Generally speaking, because natural powder crystals are naturally born from the earth, most crystals usually contain inclusions, natural ice cracks, clouds and ribbon changes, so if you like stone crystals, you should accept their natural features such as ice cracks and cotton wool. Artificial powder crystals are synthesized and concentrated by factories or laboratories, so the crystals produced are almost flawless.
2. Feel discrimination: pure natural pink crystal, cool and weighty. Synthetic crystal feels gentle and light.
3. Expert appraisal: send it to a special national gem appraisal institution for appraisal. The most commonly used synthetic crystal in the market is artificial secondary crystal. Pay attention to whether there is a national appraisal certificate when purchasing to prevent counterfeit products.
4. Starlight pink crystal produced in Madagascar, under the strong light of a single light source, the pearl bottom will present six exclusive milli-lights. However, the common starlight powder crystals on the market are all artificially processed. Starlight effect powder crystal is tender pink in color, crystal clear to light, slightly transparent with a small amount of floc, and crack-free is the top grade.
How to choose
(1) Look at material selection: crystal products with excellent material selection should not have gas-liquid inclusions with star, cloud and flocculent distribution.
Pure natural powder crystal earrings
It is best to be pure, smooth and crystal clear. If cracks and spots of different shades are found, they are defective.
(2) Look at the workmanship: There are two kinds of processing techniques for crystal products, namely grinding and carving. Such as crystal necklaces, bracelets, earrings, etc. Belonging to abrasive products; Guanyin statue, painted snuff bottle, etc. It belongs to sculpture. A well-made crystal product should be exquisite, which can fully show the external beauty (shape, style, symmetry, etc. ) crystal products, but also to maximize its inner beauty (crystal clear, smart color).
(3) Look at polishing: the quality of polishing directly affects the value of crystal products. The crystal must be polished with emery during processing, and rough production will make the crystal surface have friction marks. Good crystal products have good natural transparency and luster, which is "burning with fire" in the local dialect.
(4) Look at dyeing: In order to look better, some businesses in the market often dye powder crystals (but dyeing will destroy the magnetic field of powder crystals). In natural light and white background, the color of powder crystal will be lighter, so it is not dyed crystal.
Furong jade
Powder crystal is a kind of single crystal quartzite, which is fragile and contains a small amount of titanium to form pink. Pink crystal with a slight sense of transparency, mellow crystal texture and delicate color is called hibiscus crystal in the industry. In other words, the definitions of powder crystal and hibiscus jade are similar.
It can be called hibiscus jade or hibiscus crystal, indicating that it is as delicate as hibiscus flower. Both hibiscus jade and pink crystal symbolize happy and sweet love, which can attract the opposite sex.
Pay attention to your health
Powder crystals are easy to fade and turn white when exposed to high temperature, so it is best to avoid sun exposure when purifying.
Pink crystal can soften temperament when worn in the left hand, and enhance its attraction to the outside world when worn in the right hand.
Wearing cute little objects carved from pink crystals at work can bring excellent assistance and improvement to the relationship between customers, bosses, subordinates and colleagues, and have a good influence on the harmony of office and personal relations.
Placing a pink crystal seven-star array or a pink crystal ball at the peach blossom position in the room can attract beautiful and sweet love.
5. Usually pink crystals are not used. It can be degaussed and purified in amethyst cave.
6. If conditions do not permit, it can also be degaussed and purified in pure water.
Tourmaline is a kind of tourmaline that can reach the jewelry level. Tourmaline is a borosilicate crystal, which can contain elements such as aluminum, iron, magnesium, sodium, lithium and potassium. It is because of these chemical elements that tourmaline can show various colors. The English name of tourmaline comes from the ancient Sinhalese word Turmali (), which means "mixed gem".
The varieties mainly include:
Tourmaline of various colors
1, divided by color
The composition and color of tourmaline are very complicated. The international jewelry industry basically divides the commercial varieties of tourmaline by color, and the brighter the color, the better.
Red tourmaline (4 pieces)
The higher the value.
Blue tourmaline: a general term for light blue to dark blue tourmalines. Blue tourmaline is the most valuable color in tourmaline because of its rarity. Blue tourmaline is produced in yellow clay of weathered granite in Siberia, Russia, and also found in Brazil, Madagascar and the United States.
Red tourmaline: a generic term for pink to red tourmaline. Red is the best tourmaline, with purple and rose. It is called Ruby, which is also called "Baby Face" in China. But in nature, brown, reddish brown, crimson and so on are produced more, and the color tone changes greatly. At the same time, the specific gravity of tourmaline will change with the color; Deep red has a higher specific gravity than pink.
Zoisite: It is dark in color and rich in chemical element magnesium. Brown tourmaline is mostly produced in Sri Lanka, North America, Brazil and Australia. (The English name of brown tourmaline comes from Drewe, Austria. )
Diaspore: Diaspore is very rare, only produced in Madagascar and California. It should be noted that some colorless tourmalines on the market are made of pink tourmalines after heating and desalting. The English name of colorless tourmaline comes from the ancient Greek word "achroos", which means colorless.
Bi Xi shou pai
Green tourmaline: Green and yellow tourmalines are the most common among all tourmaline color variants, so their value is not as good as blue and red tourmalines. Green tourmaline is mostly produced in Brazil, Tanzania and Namibia, while yellow tourmaline is distributed in Sri Lanka.
Multicolor tourmaline: Because tourmaline ribbons are very developed, red and green ribbons or tricolor ribbons often appear on a crystal. Common red and green gems, commonly known as "watermelon tourmaline", are deeply loved by collectors and consumers.
2, according to the special optical effect.
Tourmaline cat's eye: when tourmaline contains a large number of parallel fibrous and tubular inclusions, it can show cat's eye effect when ground into arc gems, which is called tourmaline cat's eye.
Tourmaline cat's eye
Color-changing tourmaline: tourmaline with obvious color change, but rare.
Distinguish and distinguish editing
Crystal and tourmaline: mainly observe their colors. Generally speaking, the purple in crystal is rare, and the purple of tourmaline is generally lighter, with pink purple and light purple. On the other hand, the crystal is not as red and green as tourmaline (except crystal), so we can use the color difference between the two to roughly identify the true and false.
Fluorite and tourmaline: From the comparison of hardness, the Mohs hardness of tourmaline is 7.5 degrees, while the Mohs hardness of fluorite is only about 4 degrees. The two can be compared by scratching glass. Secondly, when fluorite pretends to be tourmaline, it is often made of multicolor materials, but tourmaline has no purple. Just when the multicolor of fluorite appears, it often has purple, so it is also an effective means to distinguish fluorite from tourmaline.
tourmaline
Glass and tourmaline: judging from the internal inclusions, there are often small and round obvious bubbles in glass, but tourmaline inclusions do not. There is another way for glass to pass off as tourmaline, that is, to pass off cracked glass as rough tourmaline. This kind of glass is usually dyed after bursting, so the color dyes are gathered in the gap, which is easy to distinguish by light transmission observation.
1, color: rose red, purple red, green and pure blue and pretty watermelon are the best colors, followed by pink and yellow, colorless and black. In the same color, according to the richness of the color, it is divided into four grades, which are dark, medium and dark.
2. Cleanliness: Require as few internal defects as possible, and the crystal clear tourmaline has the highest price. Tourmaline contains many cracks and gas-liquid inclusions, and is usually used as jade carving material. Internationally, tourmaline purity is divided into six grades, namely, slight variegated (VVF), obvious variegated (VL), slight cotton wool (VS), obvious cotton wool (S) and unclear (C).
3. Transparency: Transparency refers to the transparency of tourmaline. The more transparent it is like glass, the higher its value, and its international rating is 4. Distinguished characters (SF), distinguished shapes (SS), light transmittance (SL) and opacity (NL).
4. Workmanship/cutting: Workmanship, inspecting the technical level of appearance polishing of tourmaline carvings and bead chains. Compared with tourmaline ring surface, it mainly examines the cutting of its surface, and the cutting should be regular, symmetrical and polished.
5. Rarity: Rarity refers to the comprehensive index obtained by comprehensively considering the four basic attributes of tourmaline, such as color, weight, transparency and volume, which directly affects the market value of a tourmaline.
The best treatment of tourmaline
When the quality of natural tourmaline is poor or not, manual methods are often used to improve its quality. Commonly used methods are as follows: [1]
heat treatment
The tourmaline with darker color is heated to make its color lighter, thus enhancing the transparency and improving the gem grade [3].
Irradiation therapy
Colorless or light-colored, multi-colored tourmaline is irradiated with high-energy rays, and different irradiation time and dosage will make it appear different colors. Electron bombardment can also turn colorless or pink tourmaline into better red, but it will produce a lot of cracks [3].
Filling treatment
Resin and other materials are used to fill holes and cracks on the surface to improve appearance and durability. Under the magnifying glass of 10 times, we can see the gloss difference of the surface, and occasionally we can see bubbles in cracks and cavities. The "flash effect" can be seen along the fracture surface, and the absorption peak of organic matter can be seen in infrared spectrum [3].
Coated tourmaline
Colorless or nearly colorless tourmaline can show other colors after coating treatment, with bright colors and greatly enhanced luster. It may show only one refractive index on the refractometer, and the refractive index changes greatly, which may exceed 1.70. [3]
Pay attention to your health
The first trick is to put tourmaline jewelry alone in the jewelry box when you don't wear tourmaline jewelry at ordinary times, so as to avoid the friction and collision between tourmaline jewelry and other jewelry, causing unnecessary losses.
The second measure, tourmaline hardness is 7-8, which is relatively high, but tourmaline itself is brittle and afraid of breaking. Unless it is pure and flawless tourmaline, try not to wear tourmaline gems for strenuous exercise or heavy work, so as not to cause tourmaline gems to break.
Third, it is a good habit to check and repair your jewelry regularly. Go to a professional jewelry store to check your tourmaline jewelry every month. If the gemstone falls off and is scratched, solve it in time.
Fourth, if your friend's tourmaline jewelry is borderless inlaid and micro-inlaid, you should avoid bumping when wearing tourmaline jewelry, because the tourmaline jewelry inlaid in this way is beautiful, but not very strong, so be careful.
Fifth, do not use high-temperature water for cleaning for a long time. If it is too hot, it will change the color of tourmaline.