Wholesale natural rough tourmaline crystal tumble stone raw black tourmaline
Tourmaline is a member of the tourmaline family that can reach the grade of jewelry. Tourmaline is a crystal of borosilicate and can contain aluminum, iron, magnesium, sodium, lithium, potassium and other elements. It is due to these chemical elements that tourmaline can appear in a wide variety of colors. The English name Tourmaline is derived from the old Sinhalese word Turmali, meaning “mixed gem”.
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Description
Basic property
Tourmaline, also known as the desire stone, has its own weak energy, is inclined to absorb the gem. Because “tourmaline” is homophonic with “warding off evil spirits”, it is often regarded as the main gem for blessing and warding off evil spirits.
Variety
Divide by color
| The composition of tourmaline is complex, the color is also complex and changeable. The international jewelry industry is basically divided into commercial varieties of tourmaline by color, and the more colorful the color, the higher the value. | |||
| Indicolite: General name for a tourmaline from light blue to dark blue. Blue tourmaline has become the most valuable tourmaline because of its rarity. The blue tourmaline is found in the yellow clay of the weathered granite of Siberia, Russia, and also in Brazil, Madagascar, and the United States | |||
| Rubellite: General term for a tourmaline from pink to red. Red is the tourmaline with purple and rose red is the best, known as the red tourmaline, in China also known as “kid’s face”. But the nature with brown, brown red, dark red output more, the color change is larger. At the same time, the specific gravity of tourmaline varies with color; Dark red has more weight than pink. | |||
| Dravite: Dark in color and rich in the chemical element magnesium. Brown tourmaline is produced in Sri Lanka, the three countries of North America, Brazil and Australia. (The English name for brown tourmaline comes from the Dreve region of Austria.) | |||
| Achroite: Achroite is very rare and is only produced in small quantities in Madagascar and California. It should be noted that some colorless tourmaline on the market is made of pink tourmaline after heating and desalinating. (Colorless tourmaline derives its English name from the ancient Greek word “achroos, “meaning colorless.) | |||
| Green Tourmaline: Green and yellow tourmalines are the most common of all tourmaline color varieties, and are therefore less valuable than blue and red tourmalines. The green tourmaline is found in Brazil, Tanzania and Namibia, while the yellow tourmaline is found in Sri Lanka | |||
| Polychromatic tourmaline: Because tourmaline color band is very developed, often appear in a crystal red, green two – or three-color band. Common are red-and-green gems, commonly called “Watermelon Tourmaline”, which are popular with collectors and consumers. |
Divided by special optical effect
Tourmaline cat’s eye: When tourmaline contains a large number of parallel fibrous and tubular inclusions, the cat’s eye effect can be displayed when it is ground into curved gemstones, which is called tourmaline cat’s eye.
Discoloration tourmaline: Tourmaline with marked discoloration, but rarely.
Material Property
Chemical composition :(Na, K, Ca) (Al, Fe, Li, Mg, Mn)3 (Al, Cr, Fe, V)6 (BO3)3 (Si6O18)(OH, F)4.
Optical characteristics: heterogeneous, uniaxial, negative optical properties.
Polychromatism: medium to strong, different shades of body color.
Ultraviolet fluorescence: generally absent; Pink, red tourmaline: long, short wave is weak red to purple.
Absorption spectrum: Red, pink tourmaline: wide absorption band in green area, sometimes visible 525nm narrow band, 451nm,458nm absorption line.
Blue and green tourmaline: Red zone universal absorption, 498nm strong absorption band.
Magnification examination: gas-liquid inclusions, irregular tubular inclusions, parallel linear inclusions.
The general formula of tourmaline is XY3Z6[Si6018](BO3)3(OH)4. The position of X is mainly occupied by Na, Ca and K. The position of Y is mainly occupied by Mg, Fe, A1 and Li. The position of Z is mainly occupied by A1; Due to the displacement of X, Y and Z positions and the different formation environment, a large number of tourmaline types have been formed. When Y is dominated by Mg, it is called magnesium tourmaline, when it is dominated by Fe, it is called iron tourmaline or black tourmaline, and if Mn enters this position, it is called sodium manganese tourmaline. When tourmaline is mainly Li+Al, it is called lithium tourmaline. In lithium tourmaline, some OH is often replaced by F.
Efficacy
1 Bright rainbow colors, can give a person happy, happy and comfortable feeling, help to open up the mind and vision, and to cure chia and other mental illness has a certain adjuvant treatment effect.
2. Tourmaline contains energy that has a calming effect and can make people concentrate. And changing colors can stimulate ideas and creativity, so that one can play it safe, do one’s best, and thrive.
3. Tourmaline is considered to be the first Wangfu stone, a name derived from Guangdong civilization. In Guangdong, a woman with a beautiful face is considered to be a prosperous woman. As the saying goes, “the appearance of the heart”, tourmaline will make people feel better, so often wear people will become moist luster, very beautiful, with a prosperous look.
4. Tourmaline can emit a magnetic field with great affinity, which can eliminate the separator between people and has a natural attracting effect for love and friendship. At the same time, the tourmaline of a chieftain can release more charm and draw more people together.
5. In addition to the above effects, red and green tourmaline also has the meaning of accumulating wealth and receiving wealth. In the meantime, red tourmaline because of the color and blood close, so people think that red tourmaline also has the health care effect of promoting blood circulation, the treatment of dizziness, anemia has a good effect.
Uses of Tourmaline:
Due to the unique physical and chemical properties of tourmaline piezoelectric and thermoelectric properties, therefore, with far infrared band of electromagnetic radiation, negative oxygen ions and antibacterial, deodorization functions. Therefore, in recent years, widely used functional fiber, textile, clothing, coating materials, drinking water purification, building materials, daily necessities and composite materials and other fields.
Changes in temperature and pressure can cause the electric potential difference of tourmaline crystals, which ionize the surrounding air, i.e. produce negative oxygen ions in the air, so as to achieve the purpose of purifying the air. Adding tourmaline powder to polyester melt can make polyester fiber with far infrared warmth function, deodorization function, negative ion emission function and antibacterial function, which is called “exotic fiber”.
Additional information
| Weight | 24 kg |
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| Dimensions | 12 × 48 × 62 cm |
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