台灣德榕藏品｜原礦無染色虎眼石多寶108顆8mm圓珠｜藍虎眼｜紅虎眼

◎Taipei City welcomes face-to-face delivery/can do a variety of customized collocations
◎Can be sent to Hong Kong, Macau/Singapore and Malaysia, delivered on weekdays, and delivered on the next day

虎眼石：
Or called tiger eye stone, it is a kind of gemstone with cat's eye effect, mostly yellowish brown, with silk-like light patterns inside the gemstone. Tiger eye is one of the varieties of quartz, which can be made of crocidolite fiber silicon for pseudomorphic replacement. The blue variant produced by the incomplete process of silicification is called "Hawkeye". Generally black and yellow tones, like the pattern of a tiger, there are also blue, yellow and black, called blue opal, and opal is often called "noble gem".

Together with alexandrite, it belongs to one of the five most precious high-end gemstones in the world. Opal is mainly produced in gas-generated hydrothermal deposits and pegmatite veins. Tiger's eye is a variety of alexandrite. The quartz fiber of tiger's eye is shorter than that of lignostone, and the direction is irregular, arranged in any direction like stripes. The world's largest deposits of tiger's eye and alexandrite are located in the Transvaal Province of South Africa. In addition, they are also produced in Brazil and Henan, China. The price also depends on the fineness. Generally, the ones with no blemishes on the surface, clear eyeliner and located in the middle are top grades.

Derong Collection Encyclopedia-Tiger Eye Stone Dyeing and Baking Color Problems:

虎眼石有不能說的秘密，常見的就是烤色問題，例如，虎眼石先天只有兩種顏色，一種是黃色、另一種就是藍虎眼。那其他紅虎眼、綠虎眼呢?那些均是由黃虎眼，高溫加熱變色而來，也有分為高溫加色，以及天然高溫變色的問題。而黃虎眼產量大，較不會出現假色現象。最後則是，藍虎眼睛，藍虎眼睛普通在沒有光照情況是呈現暗色，甚至看不出有藍紋，但經過光照過後，會出現水藍色，而非天然色。以上所有變

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