How to identify jasper? What is the difference with tourmaline?

1.There is no purple tourmaline in tourmaline, and if it is purple it is not tourmaline; There will be no small bubbles in tourmaline, and there are generally cracks inside tourmaline, and if there is color enrichment at the cracks, it is generally stained glass; The hardness and refractive index are also different from those of other stones.

2.Rookie in the industry, gem and jade identification. Division Anthurium.

cabinet, often answer gem and jade questions on the Internet, and have an in-depth understanding of colored gemstones. He is a humble person and is the founder of Red Palm Cabinet Jewelry. I have become friends with many tourmalines with him, all of which are excellent.

You can ask him about the problem, or you can start with a good work from another source.

1. Weighing method.

Tourmaline is heavier than imitations, denser than glass, crystal and plastic, so you can weigh it up when you buy it. At the same size, the heavier ones are true tourmalines, while the lighter ones are imitations.

2. Thermoelectric.

Tourmaline is a type of tourmaline whose surface is subjected to heat, friction, or irradiation from the sun to release an electrical charge. If some dust, hair, confetti and other items are placed next to it at this time, it will automatically adsorb, while fake ones will not at all.

3. Refraction method.

Tourmaline is a very special gemstone that has a large refractive index and birefringence index. When it is exposed to direct sunlight, it can be seen that it has a double shadow phenomenon when viewed from above, while imitations such as glass cannot see the double shadow under the post-facet edge.

The quality of tourmaline is judged from the points of transparency, color, clarity, cut, and carat weight.

Tourmaline requires crystal clear, the more transparent the better, the better the quality, and there should be no obvious haze or opacity. Tourmaline is more precious in red, blue, and green. Clarity tourmaline is brittle in nature, easy to produce cracks, and at the same time will contain a large number of inclusions, a large number of cracks and inclusions, and the internal very pure tourmaline is also relatively rare, belonging to the top grade.

When picking, try to pick one that is clean on the inside. Cut Tourmaline The cut refers to the precision of its cut ratio and the perfection of the finish finish. A good cut should maximize the brilliance and fire of tourmaline.

Tourmaline weight is calculated in carats. All else being equal, the value of tourmaline increases exponentially as its weight increases.

Identifying real and fake tourmaline:

In general, the mineral material of tourmaline is long columnar with longitudinal lines on the cylinder and a curved triangle in cross-section. In addition, tourmaline has a very pronounced dichroism and a double shadow optical phenomenon due to strong birefringence. Therefore, if it is a crystalline material, tourmaline is very easy to identify.

However, in the case of cut and set tourmaline jewelry, it is often confused with other natural gemstones, synthetic gemstones, and even tinted glass due to the rich and diverse colors of tourmaline.

Among the natural gemstones that can be confused include diopside, amethyst, andalusite, chrysoberyl, citrine, demantoid garnet, alexandrite spodumene, peridot, smoky quartz, ruby, emerald, peach citrine, runeolite and zircon.

The identification of the quality of tourmaline is explained below

Tourmaline has been loved by many people for its colorful color, and some tourmaline will show two colors on a bead, but tourmaline's ** is slightly more expensive than the general crystal, and many people do not know how to see the quality of tourmaline natural tourmaline. 1. Color. In the international market, the general bright red and bright blue tourmaline is the highest, and the red and green bicolor and rose red and emerald green tourmaline are also very popular in the market.

Tourmaline is a kind of top jewelry, so how to distinguish the real from the fake when you buy tourmaline? How can I tell if a tourmaline is good or bad? How to distinguish the true from the false tourmaline 1, the current natural tourmaline belongs to tourmaline.

1. Chalcedony, which has a low value, belongs to quartz jade, which is considered jade in a broad sense. Jade is a large category, divided into jadeite and nephrite, chalcedony (nephrite) and jadeite (jadeite) are included. Tourmaline belongs to the class of colored gemstones, which is different from jade.

Green jadeite, which is jadeite, is also a type of jade.

2. Texture. Tourmaline has a high degree of purity, is relatively transparent, and its texture is completely transparent or translucent. The purity of jadeite is low, and its transparency shed is generally not very good, mainly translucent or opaque, and rarely contains a number of wild jadeite in a transparent state.

3. The definition is different, jadeite is a fibrous aggregate composed of pyroxene minerals dominated by jadeite minerals, tourmaline, also known as tourmaline, rainbow gemstone, is a very complex boroaluminosilicate.

4. The simple identification chain argument should be based on the nature characteristics of tourmaline. First, tourmaline is heterogeneous, with pleochroism, and the typical variety, bicolor tourmaline, also known as watermelon tourmaline, is reddish-green on a single crystal. Second, tourmaline has a high birefringence index, so post-facet ghosting can be clearly observed from its countertop.

Tourmaline, jade, and jadeite are all gemstones, but there are many differences between them. Jadeite is a fibrous aggregate composed of pyroxene lead minerals dominated by jadeite minerals, which belongs to the "king of jade", and only minerals that reach gem-quality jadeite rock and omphacite rock can be called jadeite. Tourmaline is a very complex boroaluminum silicate, which contains magnesium, sodium, lithium, chromium, copper, potassium and other elements The proportion of its color will affect the presentation of its color, which belongs to the high-grade colored gemstones.

Hetian jade belongs to the metamorphic rock formed by the contact metasomatism between magnesia marble and moderately acidic magmatic rocks.

In terms of origin, more than 95% of the jadeite and jade of the gemstone cong friend grade come from Myanmar, and the distribution range of the origin is very narrow. Tourmaline is widely distributed, including Brazil, the United States, China, Africa, Sri Lanka and other countries.

In terms of color, both jadeite and tourmaline are rich in color. Jadeite generally comes in green, white, purple, black, yellow, and red, colorless, and a combination of colors. Tourmaline is available in red, green, blue, yellow, brown, black, colorless, bicoloric, and multicolored.

Obviously, the two are very close in color, but both have something that neither side has.

Tourmaline and jadeite are different in composition, hardness, and texture. Tourmaline and jadeite have different compositions. Tourmaline is a borosilicate crystal, and the main component of jade is calcium magnesium silicate.

The hardness is different, tourmaline hardness is higher, jadeite hardness is lower. The texture varies, tourmaline is completely transparent or translucent, and jadeite is translucent or opaque. Tourmaline and jadeite are different in type, color, and texture.

Tourmaline is tourmaline and borosilicate crystals, while jadeite is a fibrous aggregate composed of pyroxene minerals dominated by jadeite. In addition, tourmaline contains a variety of colors, while jadeite is also rich in color.

Difference Between Tourmaline and Jadeite: Tourmaline and Jadeite have different compositions. Tourmaline is a borosilicate crystal that contains chemical elements such as aluminum, iron, magnesium, sodium, lithium, potassium, etc.

The main component of jadeite is calcium magnesium silicate, as well as tremolite, serpentine, hornblende and other components; Hardness differences: Tourmaline and jadeite have different hardness. Tourmaline is a gemstone with a hardness of about 7 to 8 degrees on the Mohs scale.

The hardness of jade is low, about 6 to Mohs, and tourmaline can leave deep marks on the surface of jade; Texture differences: Tourmaline and jadeite have different textures. Tourmaline has a completely transparent or translucent texture with a bright vitreous luster on the surface.

The texture of jade is translucent or opaque, and the surface is oily or waxy.