鸡血石的鉴别
由于鸡血石资源日趋枯竭,产量越来越少,价格日益上涨。在高额利润的驱使下,鸡血石的处理及仿制相继出现,常见的处理方法如下:
充填处理是用胶或树脂将红色颜料或辰砂粉填充于裂隙或凹坑中,干燥后涂上一层树脂。
表面呈蜡状或油脂光泽,热针可熔,可见“血”颜色单一,多沿裂隙或凹坑分布,染料颗粒无定形,浮于胶中。
覆膜处理是用辰砂粉或红色颜料与胶混合,涂于表层以增加“血”色。可见“血”色飘浮于透明层中,偶见涂刷痕迹。
拼接、镶嵌处理是将有血的鸡血石薄片用胶水拼接、镶嵌在鸡血石无血部位,并做雕刻或抛光。这种鸡血石质地花纹和血形分布走向不自然、不连续,仔细观察可见结合部的拼接、镶嵌痕迹。
仿鸡血石是用人工合成械料或无色的鸡血石粉末,加上辰砂粉或红色颜料胶合压制而成。
其鉴别方法是仔细观察结构特征,如地颜色申调。几乎不透明。血形分布异常。密度特征也不同,触摸有温感等等。
充填处理是用胶或树脂将红色颜料或辰砂粉填充于裂隙或凹坑中,干燥后涂上一层树脂。
表面呈蜡状或油脂光泽,热针可熔,可见“血”颜色单一,多沿裂隙或凹坑分布,染料颗粒无定形,浮于胶中。
覆膜处理是用辰砂粉或红色颜料与胶混合,涂于表层以增加“血”色。可见“血”色飘浮于透明层中,偶见涂刷痕迹。
拼接、镶嵌处理是将有血的鸡血石薄片用胶水拼接、镶嵌在鸡血石无血部位,并做雕刻或抛光。这种鸡血石质地花纹和血形分布走向不自然、不连续,仔细观察可见结合部的拼接、镶嵌痕迹。
仿鸡血石是用人工合成械料或无色的鸡血石粉末,加上辰砂粉或红色颜料胶合压制而成。
其鉴别方法是仔细观察结构特征,如地颜色申调。几乎不透明。血形分布异常。密度特征也不同,触摸有温感等等。
据考证,鸡血石的开采始于宋代,而盛名于清代,康熙、乾隆、嘉庆等皇帝十分赏识昌化鸡血石,将其作为宝玺的章料。国家邮政局日前发行的一套《鸡血石印》特种邮票印的就是两方宝玺。 上世纪70年代初,日本前首相田中角荣、前外相大平正芳来我国访问,周恩来总理将昌化鸡血石对章,作为国礼馈赠两位贵宾。操刀奏石者是集云阁篆刻家沈受觉、刘友石先生。于是,鸡血石在日本名声大噪,掀起了一股收藏鸡血石热潮。大批日本游客来华时,必将鸡血石作为首选礼品带回。在我国,国人对鸡血石的收藏投资热情也逐年上升。
Chicken blood stone identification
Because chicken blood stone resources are depleting, yield less and less, the price rising. Driven by high profits, soapstone processing and imitation have appeared, a common approach is as follows:
Filling treatment is to use glue or resin or cinnabar red pigment powder to fill in cracks or pits, coated with resin after drying.
Surface was waxy or oil sheen, hot needle fusible, showing "blood" single color, multi-distribution along fissures or pits, dye particles of amorphous, floating on the gel.
Film processing is cinnabar red pigment powder or mixed with glue, applied to the surface in order to increase the "blood" color. Visible "blood" color floating in the transparent layer, occasionally brushing traces.
Mosaic, mosaic processing is to have blood Bloodstone sheet with glue mosaic inlaid in parts of soapstone without blood, and make carved or polished. This Soapstone texture pattern and blood-shaped distribution toward unnatural, not continuous, careful observation of junction visible stitching, mosaic traces.
Bloodstone is synthetic imitation firearms soapstone powder or colorless material, coupled with cinnabar red pigment powder or glued repression.
The differential method is to carefully observe the structural features, such as ground color Shen tone. Almost opaque. Shaped distribution of blood abnormalities. Density characteristics are also different, touch a warm feeling and so on.
Because chicken blood stone resources are depleting, yield less and less, the price rising. Driven by high profits, soapstone processing and imitation have appeared, a common approach is as follows:
Filling treatment is to use glue or resin or cinnabar red pigment powder to fill in cracks or pits, coated with resin after drying.
Surface was waxy or oil sheen, hot needle fusible, showing "blood" single color, multi-distribution along fissures or pits, dye particles of amorphous, floating on the gel.
Film processing is cinnabar red pigment powder or mixed with glue, applied to the surface in order to increase the "blood" color. Visible "blood" color floating in the transparent layer, occasionally brushing traces.
Mosaic, mosaic processing is to have blood Bloodstone sheet with glue mosaic inlaid in parts of soapstone without blood, and make carved or polished. This Soapstone texture pattern and blood-shaped distribution toward unnatural, not continuous, careful observation of junction visible stitching, mosaic traces.
Bloodstone is synthetic imitation firearms soapstone powder or colorless material, coupled with cinnabar red pigment powder or glued repression.
The differential method is to carefully observe the structural features, such as ground color Shen tone. Almost opaque. Shaped distribution of blood abnormalities. Density characteristics are also different, touch a warm feeling and so on.
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