Tourmaline is a very popular variety among colored gemstones. The quality and value of tourmaline are embodied in many aspects such as shape, color and optical effect. The editor of Baolong.com will edit a few points for you to use when choosing tourmaline gems or tourmaline jewelry. Tourmaline crystals are mostly long columnar, with high [...]
Kategoriya arxivi: Zargarlik buyumlari yangiliklari
Granat nomi, Garnet, evolved from the Latin Granatus, because its crystals are mostly granular, similar to mature pomegranate seeds. Garnet is a single-refraction gemstone of equiaxed crystal system, with hardness between 6.5 va 7.5, Yaxshi qattiqlik, silicate minerals containing different metal elements, garnets are divided into six categories due to the different metal [...]
Because of the variety of types, garnets are often sold under commercial names in the gem market, and the price varies greatly. This book introduces the more common garnets in the gem market. The following are the more common types in the market. Almandine: It is called noble garnet on the market. Bu [...]
Demantoid: Demantoid barcha granatlarning eng qimmatidir. Rangi sariq-yashildan yashilgacha. Demantoid 0.057 olmosga qaraganda yuqori dispersiya darajasiga ega 0.044, shuning uchun kesishdan keyin olov Zo'r, Demantoid nomi uning olmosga o'xshash yorqinligidan kelib chiqqan, olmosdek yorqinligi bor. Boshqa granatalar qora va sariq-jigarrang. Ular [...]
Some pink topaz is formed by heating light yellow topaz. This kind of heat treatment has a history of centuries. The pink topaz inlaid on some antique jewelry from the Middle Ages is heat treated. Because the color of this treatment is stable and long-lasting, it is recognized in the industry to be acceptable, regardless [...]
Gem bozorida sun'iy shpinel mahsulotlari mavjud. An'anaviy sintez usuli olovli eritish usuli bilan sintezlanadi. Yaqin o'tkan yillarda, flux usulida sintez qilingan shpinel ham bozorga kirdi. Flyus usuli bilan sintez qilingan sun'iy shpinelning tashqi ko'rinishi va ichki ko'rinishi tanishtirildi. , The content [...]
Zargarlik bozorida spodumen qimmatbaho toshlar tez-tez paydo bo'ladigan yagona qimmatbaho toshlardir. Uning sinishi ko'rsatkichi 1.655-1.680, ikki sinishi farqi 0.015, dispersiya nisbati 0.015, solishtirma og'irlik 3.15-3.20, va qattiqlik 6.5-7, lekin u guruhga ega bo'lgani uchun Yirilish juda to'liq, va to'qnashuv tufayli yorilish oson, [...]
Sümbül sirkonyum silikatdan iborat, ning yuqori sinishi indeksiga ega 1.78-1.987, ning juda katta ikki sinishi farqi 0.059. Ish stolidan kuzatish uchun kattalashtiruvchi oynadan foydalansangiz, qo'sh soyaning pastki qismidagi tizma chizig'ini ko'rishingiz mumkin, shuning uchun olmosdan ajratish oson [...]
Aytilganidek, "Nefritni kesmasdan yasay olmaysiz", bu zargarlik uslubi va kesishning ahamiyatini to'liq tushuntiradi. Gemologlar odatda turli toshlarning optik xususiyatlariga ko'ra o'ziga xos uslublarni ishlab chiqadilar. Voqea nuri zargarlik stoliga maksimal darajada qaytariladi, showing the unique dispersion effect of [...]
Birinchidan, qimmatbaho toshlar va zargarlik buyumlarini berishda, asossiz hodisalardan qochish uchun oluvchilarni aniqlashtirish kerak. Masalan, Ayollarning erkaklarga marvariddan yasalgan taqinchoqlarni yoki chet ellik do'stlariga fil suyagidan yasalgan zargarlik buyumlarini sovg'a qilishlari odobsizlik va aql bovar qilmaydigan hisoblanadi., chunki marvarid taqinchoqlari ayol taqinchoqlaridir, and ivory jewelry is prohibited from importing in [...]