紅寶石
是剛玉系列中，最為知名且最受人喜愛的品種．其價格也在常見的有色寶石中居冠．紅寶石最受人喜愛的特點就是其顏色．剛玉系列中，呈現深色的紫紅，褐紅色者，才有資格被稱為紅寶石，其他紅得不夠徹底的近紅色剛玉，則通稱為粉紅藍寶石（Pink Sapphire）．
紅寶石等高價寶石是極講究”出身”，也就是寶石的產地的．
紅寶石的產地中，以緬甸所產者最為名貴，正紅的顏色，被稱為”鴿血紅”的色澤，是紅寶石中最受歡迎者．
其實要正確無誤地鑑定寶石產地，有相當的難度，商業上稱某某產地的寶石，實際上指的是色澤，淨度到達此產地著名的寶石等級者，並不一定真是此產地所產出．同一個產地本就會產出各種不同等級的寶石．只要求特定產地的寶石，其實並無太大意義，重點還是要看寶石的品質，來決定其價值．紅寶石的色澤是由鉻離子所產生，因此，在濾色鏡下觀察紅寶石，通常可看到其呈現紅色．紅寶石內常有較多內含物，使其淨度較差．包括紅寶石在內的剛玉系列，由於屬三方晶系，常具有六角形的針狀紋路，有些晶體在磨成凸面形圓粒後，於單一點光源的照射下，會產生三線的六角星芒（Asterism），稱為星石．星芒的產生，與貓眼的形成原因基本上相同，均是由於寶石內，針狀物的結晶，整齊排列的結果．紅寶石內，針狀金紅石以呈120度的夾角，分成三組排列，三組針狀物各產生一條貓眼光，因而構成了星芒．
原石與晶體
紅寶石屬三方晶系．
紅寶石常見的原石呈六方板狀或六方桶狀，柱面上有垂直C軸的生長紋理，底軸面上常見三角形突起的生長標誌．
仿製與合成
天然寶石中，易與紅寶石相混的寶石有紅石榴石，紅尖晶石，紅電氣石．
其中，石榴石與尖晶石為單折射寶石，與剛玉系列的雙折射特性不同，而紅電氣石的顏色與紅寶石則不大相同，較易分辨出來．
合成寶石方面，自本世紀初，合成紅寶石以維紐爾法研製成功後，便以此種人造紅寶石為替代天然紅寶石的主要來源．
合成紅寶石在光學特性，物理特性上都與天然紅寶石相近，一般人很難分別出來．天然紅寶石內的色帶是呈六角形，而維紐爾法製程的合成紅寶石，則具弧形生長紋，且有氣泡內含物，因此，可在顯微鏡下加以鑑別．
剛玉系列的星石也可以人造合成，稱為林德星石（Linde Star Ruby）．
優化處理
紅寶石經熱處理後，絲狀內含物會溶解，使得其更為清澈，反過來說，若觀察到絲狀內含物，則表示此紅寶石沒有經過熱處理．紅寶石亦可經擴散處理增加顏色．這是在熱處理時，加入鉻，使紅寶石表面的顏色變為較鮮紅，這種處理，商家有責任告知消費者．
Ruby
Corundum series, the most famous and best-loved species. Their prices are often colored gemstones ranks highest. Ruby's most popular feature is its color. Corundum series, showing dark purple, maroon who are eligible to be called ruby, the other red, red corundum nearly thorough enough, then known as pink sapphire (Pink Sapphire).
Rubies and other precious stones are very particular about the high price, "origin", which is the gem of origin.
Ruby color origin in order to Myanmar by the middle of the most expensive, is red in color, known as "pigeon blood red", is the most popular person ruby.
原石與晶體
紅寶石屬三方晶系．
紅寶石常見的原石呈六方板狀或六方桶狀，柱面上有垂直C軸的生長紋理，底軸面上常見三角形突起的生長標誌．
仿製與合成
天然寶石中，易與紅寶石相混的寶石有紅石榴石，紅尖晶石，紅電氣石．
其中，石榴石與尖晶石為單折射寶石，與剛玉系列的雙折射特性不同，而紅電氣石的顏色與紅寶石則不大相同，較易分辨出來．
合成寶石方面，自本世紀初，合成紅寶石以維紐爾法研製成功後，便以此種人造紅寶石為替代天然紅寶石的主要來源．
合成紅寶石在光學特性，物理特性上都與天然紅寶石相近，一般人很難分別出來．天然紅寶石內的色帶是呈六角形，而維紐爾法製程的合成紅寶石，則具弧形生長紋，且有氣泡內含物，因此，可在顯微鏡下加以鑑別．
剛玉系列的星石也可以人造合成，稱為林德星石（Linde Star Ruby）．
優化處理
紅寶石經熱處理後，絲狀內含物會溶解，使得其更為清澈，反過來說，若觀察到絲狀內含物，則表示此紅寶石沒有經過熱處理．紅寶石亦可經擴散處理增加顏色．這是在熱處理時，加入鉻，使紅寶石表面的顏色變為較鮮紅，這種處理，商家有責任告知消費者．
Ruby
Corundum series, the most famous and best-loved species. Their prices are often colored gemstones ranks highest. Ruby's most popular feature is its color. Corundum series, showing dark purple, maroon who are eligible to be called ruby, the other red, red corundum nearly thorough enough, then known as pink sapphire (Pink Sapphire).
Rubies and other precious stones are very particular about the high price, "origin", which is the gem of origin.
Ruby color origin in order to Myanmar by the middle of the most expensive, is red in color, known as "pigeon blood red", is the most popular person ruby.
In fact, to correctly identify gemstones origin, have considerable difficulty, said the origin of certain gemstones business, actually refers to the color, clarity arrive at this famous gem grade origin who do not necessarily really the origin of the output . This will output the same origin of the various grades of stones. Only asks for specific origin of gems, in fact, not much significance, the focus is to look at the quality of the stone to determine its value. Ruby color is produced by the chromium ions, so that the observed ruby in color filter, typically see their red color. More often inclusions within a ruby to poor clarity. Including ruby corundum, including series, due to the trigonal system, and often has a hexagonal needle lines, some crystals in the ground into a convex-shaped pellets, irradiation at a single point light source, will produce three-wire Star of David Mans ( Asterism), called rock stars. Astral generation, and causes essentially the same cat, are due within the gemstone, crystal needles, the results neatly arranged. Within a ruby, needle rutile to form an angle of 120 degrees, divided into three groups arranged in three groups of needles each produce a cat vision, and thus constitutes the Astral.
Original stone and crystal
Ruby trigonal system.
The original stone ruby common hexagonal plate or hexagonal barrel, there is growing texture vertical C-axis, the bottom surface of the common axis of the triangle mark on the growth projections cylinder.
Imitation and synthetic
Original stone and crystal
Ruby trigonal system.
The original stone ruby common hexagonal plate or hexagonal barrel, there is growing texture vertical C-axis, the bottom surface of the common axis of the triangle mark on the growth projections cylinder.
Imitation and synthetic
Natural stones, gems mixed easily with ruby red garnet, red spinel, red tourmaline.
Among them, the garnet and spinel single refractive gem, and birefringence corundum series of different, but the color of ruby red tourmaline is not quite the same, easier to tell the difference.
Among them, the garnet and spinel single refractive gem, and birefringence corundum series of different, but the color of ruby red tourmaline is not quite the same, easier to tell the difference.
Synthetic gems, since the beginning of this century, synthetic ruby to post 維紐爾 method was successfully developed, then as an alternative to such a major source of man-made natural ruby ruby.
Synthetic ruby and natural ruby are similar to the optical properties, physical properties, it is generally difficult apart. Natural ruby ribbon inside is hexagonal, and the synthetic ruby 維紐爾 legal process, the growth pattern with curved, and there is a bubble inclusions, therefore, can be identified under a microscope.
Corundum series can also be artificial and synthetic rock stars, rock stars called Linde (Linde Star Ruby).
Optimization
Synthetic ruby and natural ruby are similar to the optical properties, physical properties, it is generally difficult apart. Natural ruby ribbon inside is hexagonal, and the synthetic ruby 維紐爾 legal process, the growth pattern with curved, and there is a bubble inclusions, therefore, can be identified under a microscope.
Corundum series can also be artificial and synthetic rock stars, rock stars called Linde (Linde Star Ruby).
Optimization
Ruby after heat treatment, filamentous inclusions will dissolve, making it more clear, on the other hand, if the observed filamentous inclusions, it means the ruby has not been heat treated. Ruby is also increased by the diffusion process color. This is during the heat treatment, adding chromium, the color becomes relatively bright red ruby surface, this process, businesses have a responsibility to inform consumers.
