1. What is garnet?

Garnet is a gem with a long history. Because its crystal is very similar to pomegranate seed in shape and color, it is named "garnet". At the same time, it has high refractive index and strong luster, which is close to the luster of diamonds. It is the best in colored gems. At present, many garnets on the market are produced in Africa, and the prices of most garnets are approachable, but there are exceptions!

Second, the origin of garnet

① Mg-Al garnet is produced in the former Soviet Union, Norway, Czech Republic and Jiangsu, China, and large gem-grade Mg-Al garnet is rare;

② Garnet is mainly produced in the United States, Tanzania and other countries;

③ Eclogite is produced in Sri Lanka, Brazil, Madagascar, India and other countries;

④ Eclogite is produced in Kenya, Pakistan, the former Soviet Union and China;

⑤ Garnet is produced in Sri Lanka;

⑥ Gemstone grade in manganese aluminum garnet is produced in Myanmar/Myanmar, Sri Lanka, Brazil and other countries;

⑦ andradite has output in the former Soviet Union and Congo;

Today, eclogites are found in the former Soviet Union and the United States.

Third, the classification basis of garnet

Garnet is not a single mineral, but a silicate mineral with complex chemical composition. The color of the whole family covers almost the whole spectrum. They have similar physical properties and crystal morphology, but they have different chemical compositions.

They always contain two metal elements at the same time. According to the types of these two metal elements, they can be divided into two series and subdivided into six categories:

Alumina series-Mg-Al garnet, Fe-Al garnet and Mn-Al garnet;

Eclogite series-eclogite, eclogite and andradite.

andradite

Garnet is a kind of andradite containing trace chromium, which has high luster and high dispersibility. Colors range from light green, yellow-green to emerald green. The refraction of garnet is green, which is higher than that of diamond, and the fire color is particularly rich, but the particles are generally small, and those exceeding 2 carats are rare.

Malayan garnet

Malaya garnet Malava garnet, found in Umba Valley near the border between Tanzania and Kenya in East Africa, is a kind of garnet with unique pink and orange, belonging to a mixture of manganese aluminum garnet and magnesium aluminum garnet.

spessartine garnet

The gemological name of Fanta stone is Spessarine, which is one of the most important varieties in garnet family. Its color ranges from red to orange red, red to brown, rose orange red and so on. Among them, orange and orange are more beautiful. Because the color is very similar to Fanta soda, it is also called Fanta Stone.

almandine

Garnet is one of the most common garnet varieties, also known as garnet. The color is mainly dark, often brown, chestnut and purplish red (also known as "purple tooth black" in business), and it is often used as a bracelet.

Liuzishi

Mg-Al garnet, also known as "Mg-Al garnet", can be said to be a red variety garnet, which is a common gem variety of jadeite, and its color is often light yellow red, deep red, purplish red and red. Moreover, garnet can also have the effect of color change.

olivine

Garnet is a kind of calcium-aluminum garnet, which contains more andradite and almandine molecules. It is often light yellow, yellow, yellow-brown, yellow-green, orange-yellow, orange-brown and other colors, which will mislead Fanta stone, that is, "manganese aluminum garnet".

Maliliushi

Maligarnet is one of the very rare varieties in garnet family. Its name comes from Mali, the only producer of garnet in Mali, which is located in northwest Africa. It is a mixed variety of almandine and almandine with high dispersion and high refractive index.

tsavorite

The chemical name of Shafulite is Cr-V-Ca-Al garnet. Because it contains a small amount of Cr and V elements, it is delicate in color and green. The jeweler Tiffany &: Co named this gem "savorite" and introduced it to the world. Savorite is also one of the most popular green gems in recent years.