鸡血石为红宝石品种之一，因玉石中带有鲜红斑纹像鸡血所凝结的辰砂因而得名。它的主要产地在东南亚紧邻中国的缅甸、泰国、柬埔寨、锡兰等国，以及我国西藏、浙江昌化等地区。鸡血石的显明特征是红色鲜艳、纯清、糯柔，光艳耀眼。
鸡血石一般都是作为印章材料出现于市场的，天然的鸡血石，色泽鲜红欲滴，状若鸡血滴在石上，其艳无比。我国著名书法家、篆刻家邓散木先生在所著的《篆刻学》书中指出“鸡血石其品之高下，则在地在血。”其色以“鲜、凝、厚”为佳，所谓“鲜”即指红如淋漓的鲜血，次之则嫣红、深红、紫红等色；“凝”指鸡血凝聚不散，“厚”指鸡血有一定厚度、有层次地深透于石层之中的感觉。鸡血石有老坑新坑以及老坑新作之分，老坑质细且糯柔，血鲜而沉浑，地子有藕粉冻、黄冻、乌冻、蜜糕冻等。老坑中著名品种有白、红、黑三色结合而成的，俗称“刘关张”（即刘“白”关“红”张“黑”）更是稀世之宝。
1、可将样品用烛火、电炉或酒精灯之类烘热，真品的红色变为浅棕色或紫色，当及时停止加温后，随着温度的降低，其颜色又逐渐由浅棕色或紫色变成红色，赝品就无此种现象，而会出现烧焦的情况；
2、可用汽油或香蕉水擦拭石的表面，真品不会掉色，而赝品会显得掉色或被溶解变色；
3、用少量王水（即浓硝酸和浓盐酸混合而成的腐蚀剂）滴在石的红色处，真品不久会起泡，并产生易擦掉的薄膜，赝品则无此现象。
Blood stone is one of the varieties of ruby , red markings as a result of the condensation of chicken with cinnabar jade hence the name . It is mainly grown in Southeast Asia, next to China, Myanmar, Thailand , Cambodia , Ceylon and other countries, as well as China's Tibet , Zhejiang Changhua other regions. Bloodstone is obvious characteristic bright red , pure clear, waxy soft, guangyan dazzling.
Blood stone is generally seen in the market as a seal material , natural soapstone , the color red and dripping , Zhuangruo chicken drops of blood on the stone , its brilliant incomparable. A famous calligrapher , and seal Mr. Deng Sanmu that " compete with its products of Bloodstone , then in the blood ." In the book " carving school ," the book its color to "fresh , condensate , thick" better, so-called " fresh "refers to red as the blood dripping , followed by the bright red , dark red, purple and other colors ; " condensate "means chicken cohesion lingers , " thick "means chicken has a certain thickness , level ground deep penetration in the rock layer the feeling. Soapstone has a new pit crater and crater new work points, thin and soft waxy substance crater , fresh blood and Shen muddy , frozen earth son of a lotus root starch , frozen yellow , black jelly, honey cakes and other frozen . Crater famous varieties of white , red and black color combination of the three , commonly known as " Liu Guan " ( ie Liu "white " off "red " Zhang "black" ) is a rare treasure .
How to identify the authenticity of Blood stone products
1, samples can be used candles, electric or kerosene lamp like reheat, genuine red to light brown or purple, when the heating is stopped in time, as the temperature decreases, the color gradually changed from a light brown or purple red, no fakes on this phenomenon, and the situation will be burnt;
2, can be used to clean gasoline or banana water stone surface, genuine will not fade, but fade or dissolve fakes appear discolored;
3, with a small amount of aqua regia (ie mixing concentrated nitric acid and concentrated hydrochloric acid from the corrosive) drops in the red at the stone, will soon be sparkling genuine and produce easy to wipe the film, fake does not have this phenomenon.
