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象牙日常保养及科普知识

来源: 南方日报网络版     时间: 2019年02月20日 00:11:26
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(原)(标)(题)(:象)(牙)(日)(常)(保)(养)(及)(科)(普)(知)(识)(<br />象)(,哺)(乳)(纲)(,长)(鼻)(目)(,象)(科)(。通)(称)(象)(,是)(世)(界)(现)(存)(最)(大)(的)(陆)(栖)(动)(物)(。长)(鼻)(目)(仅)(有)(象)(科)(1科)(共)(2属)(2种)(,即)(亚)(洲)(象)(和)(非)(洲)(象)(。象)(肩)(高)(约)(3-4米)(,体)(长)(6-7米)(,上)(颌)(具)(1对)(发)(达)(门)(齿)(,终)(生)(生)(长)(,非)(洲)(象)(门)(齿)(可)(长)(达)(3.3米)((注)(意)(亚)(洲)(象)(雌)(性)(长)(牙)(不)(外)(露)()。非)(洲)(象)(耳)(大)(,体)(型)(较)(大)(,亚)(洲)(象)(耳)(小)(,身)(体)(较)(小)(,体)(重)(较)(轻)(。<br />象)(牙)(的)(颜)(色)(有)(白)(、黄)(、浅)(棕)(等)(色)(调)(,表)(面)(无)(珐)(琅)(质)(覆)(盖)(,质)(地)(坚)(韧)(细)(密)(,光)(泽)(柔)(和)(。象)(牙)(根)(部)(中)(空)(,与)(骨)(头)(相)(连)(,称)(牙)(管)(;中)(部)(露)(出)(口)(外)(,约)(占)(总)(长)(的)(1/3,为)(半)(空)(心)(,牙)(尖)(1/3实)(心)(,从)(实)(心)(的)(截)(面)(可)(以)(看)(到)(中)(央)(有)(一)(小)(黑)(孔)(,称)(“牙)(心)(”。通)(过)(牙)(心)(可)(以)(判)(断)(牙)(材)(的)(优)(劣)(,只)(有)(中)(央)(一)(粒)(,称)(“太)(阳)(心)(”,最)(好)(;数)(粒)(的)(,称)(“芝)(麻)(心)(”,次)(之)(;成)(不)(规)(则)(点)(线)(状)(纠)(缠)(的)(,称)(“糟)(心)(”,最)(差)(。在)(象)(牙)(截)(面)(上)(还)(能)(找)(到)(独)(特)(的)(交)(错)(网)(纹)(或)(人)(字)(纹)(,也)(称)(“牙)(纹)(”,这)(是)(一)(般)(的)(兽)(骨)(、兽)(牙)(所)(不)(具)(备)(的)(。象)(牙)(截)(面)(形)(状)(多)(呈)(圆)(形)(、近)(圆)(形)(,具)(有)(分)(层)(结)(构)(,分)(界)(线)(比)(较)(清)(晰)(。亚)(洲)(象)(牙)(比)(非)(洲)(象)(牙)(的)(纹)(理)(粗)(。象)(牙)(有)(自)(然)(的)(纹)(路)(,以)(牙)(心)(为)(中)(心)(向)(四)(周)(扩)(展)(,牙)(纹)(也)(变)(得)(越)(来)(越)(粗)(。所)(以)(,象)(牙)(纹)(有)(“人)(”字)(形)(纹)(和)(网)(状)(形)(纹)(两)(种)(。<br />象)(牙)(的)(种)(类)(:<br />1、非)(洲)(象)(牙)(<br />2、亚)(洲)(象)(牙)(<br />3、猛)(犸)(象)(牙)(<br />4、人)(造)(象)(牙)(<br />现)(在)(市)(场)(上)(象)(牙)(材)(料)(主)(要)(为)(亚)(洲)(象)(牙)(、非)(洲)(象)(牙)(之)(分)(。亚)(洲)(象)(现)(分)(布)(于)(亚)(洲)(南)(部)(的)(印)(度)(、斯)(里)(兰)(卡)(、孟)(加)(拉)(国)(、泰)(国)(、马)(来)(西)(亚)(、老)(挝)(、越)(南)(和)(中)(国)(云)(南)(西)(南)(部)(。亚)(洲)(的)(母)(象)(不)(生)(牙)(,在)(锡)(兰)(的)(公)(象)(也)(不)(生)(牙)(。亚)(洲)(象)(的)(个)(体)(较)(小)(,象)(牙)(小)(而)(短)(。颜)(色)(偏)(白)(容)(易)(泛)(黄)(、光)(泽)(较)(差)(,其)(牙)(质)(的)(硬)(度)(低)(于)(非)(洲)(象)(牙)(;非)(洲)(大)(象)(现)(分)(布)(坦)(桑)(尼)(亚)(、塞)(内)(加)(尔)(、埃)(塞)(俄)(比)(亚)(、加)(莲)(等)(地)(。非)(洲)(的)(公)(、母)(象)(都)(有)(牙)(,象)(牙)(粗)(而)(长)(。多)(呈)(奶)(白)(色)(,质)(地)(细)(腻)(、光)(泽)(好)(,硬)(度)(高)(,但)(受)(温)(度)(变)(化)(易)(产)(生)(裂)(纹)(。<br />亚)(洲)(象)(普)(遍)(寿)(命)(长)(,并)(且)(气)(候)(不)(一)(样)(,所)(以)(亚)(洲)(的)(颜)(色)(更)(加)(润)(,也)(更)(加)(细)(腻)(,同)(时)(也)(比)(较)(软)(。牙)(纹)(相)(对)(来)(说)(不)(明)(显)(,而)(且)(时)(间)(长)(了)(容)(易)(变)(黄)(。非)(洲)(的)(牙)(质)(坚)(硬)(,外)(表)(更)(加)(洁)(白)(,并)(且)(牙)(有)(一)(段)(是)(中)(空)(的)(,纹)(路)(较)(粗)(。<br />1、亚)(洲)(象)(牙)(:印)(度)(、斯)(里)(兰)(卡)(及)(东)(南)(亚)(等)(地)(的)(亚)(洲)(象)(产)(的)(象)(牙)(。亚)(洲)(象)(体)(型)(小)(于)(非)(洲)(象)(,且)(只)(有)(雄)(象)(才)(有)(象)(牙)(,牙)(型)(一)(般)(较)(小)(,一)(般)(呈)(较)(致)(密)(的)(白)(色)(,加)(工)(较)(柔)(软)(,且)(易)(变)(黄)(。其)(中)(以)(斯)(里)(兰)(卡)(产)(的)(为)(佳)(,具)(淡)(玫)(瑰)(白)(色)(;其)(次)(为)(泰)(国)(产)(。成)(年)(亚)(洲)(雄)(象)(的)(象)(牙)(长)(1.5米)(-1.8米)(,重)(30-50公)(斤)(。亚)(洲)(象)(不)(仅)(是)(国)(家)(一)(级)(保)(护)(动)(物)(,也)(是)(《濒)(危)(野)(生)(动)(植)(物)(种)(国)(际)(贸)(易)(公)(约)(》上)(的)(濒)(危)(动)(物)(。亚)(洲)(公)(象)(的)(长)(牙)(,颜)(色)(多)(为)(纯)(白)(色)(,可)(少)(见)(淡)(玫)(瑰)(白)(色)(,但)(质)(地)(较)(松)(散)(柔)(软)(,容)(易)(变)(黄)(。截)(面)(剪)(刀)(纹)(理)(相)(对)(鲜)(明)(。<br />2、非)(洲)(象)(牙)(:成)(年)(非)(洲)(雄)(象)(的)(象)(牙)(长)(达)(2.5米)(,重)(70-90公)(斤)(,是)(《濒)(危)(野)(生)(动)(植)(物)(种)(国)(际)(贸)(易)(公)(约)(》上)(的)(濒)(危)(动)(物)(。走)(私)(非)(洲)(象)(牙)(的)(法)(律)(责)(任)(要)(轻)(于)(走)(私)(亚)(洲)(象)(牙)(。非)(洲)(公)(象)(的)(长)(牙)(和)(小)(牙)(,颜)(色)(白)(色)(、绿)(感)(色)(调)(等)(,质)(地)(细)(腻)(,截)(面)(剪)(刀)(纹)(理)(细)(。非)(洲)(产)(的)(象)(牙)(质)(地)(最)(为)(细)(腻)(,在)(乳)(白)(色)(中)(透)(出)(一)(股)(暖)(色)(调)(,光)(泽)(极)(为)(柔)(合)(,故)(质)(量)(最)(好)(。<br />3、猛)(犸)(象)(牙)(:猛)(犸)(,古)(脊)(椎)(动)(物)(,哺)(乳)(纲)(,长)(鼻)(目)(,真)(象)(科)(。学)(名)(真)(猛)(犸)(象)(,也)(称)(长)(毛)(猛)(犸)(象)(,生)(活)(在)(约)(1万)(1千)(年)(前)(。猛)(犸)(是)(鞑)(靼)(语)(“地)(下)(居)(住)(者)(”的)(意)(思)(,曾)(经)(是)(世)(界)(上)(最)(大)(的)(象)(。一)(头)(成)(熟)(的)(猛)(犸)(,身)(长)(达)(5米)(,体)(高)(约)(3米)(,与)(亚)(洲)(象)(相)(近)(,门)(齿)(长)(1.5米)(左)(右)(。与)(现)(代)(象)(不)(同)(,它)(们)(并)(非)(生)(活)(在)(热)(带)(或)(亚)(热)(带)(,而)(是)(生)(活)(在)(北)(方)(严)(寒)(气)(候)(的)(一)(种)(古)(哺)(乳)(动)(物)(。科)(学)(家)(认)(为)(,地)(球)(上)(的)(猛)(犸)(是)(死)(于)(突)(如)(其)(来)(的)(冰)(期)(,使)(得)(死)(亡)(后)(的)(尸)(体)(即)(遭)(冻)(结)(,故)(未)(来)(得)(及)(腐)(烂)(。又)(由)(于)(千)(百)(年)(来)(在)(地)(穴)(中)(受)(到)(冰)(雪)(的)(保)(护)(掩)(埋)(,故)(能)(完)(整)(地)(被)(保)(存)(下)(来)(。我)(国)(东)(北)(、山)(东)(长)(岛)(、内)(蒙)(古)(、宁)(夏)(等)(地)(区)(曾)(发)(现)(过)(猛)(犸)(的)(化)(石)(,而)(苏)(联)(西)(伯)(利)(亚)(北)(部)(及)(北)(美)(的)(阿)(拉)(斯)(加)(半)(岛)(的)(冻)(土)(层)(中)(,都)(曾)(发)(现)(带)(有)(皮)(肉)(的)(完)(整)(个)(体)(。所)(以)(说)(西)(伯)(利)(亚)(和)(阿)(拉)(斯)(加)(的)(冻)(土)(层)(中)(的)(猛)(犸)(牙)(最)(好)(。一)(些)(被)(铁)(铜)(磷)(酸)(盐)(浸)(染)(而)(呈)(蓝)(色)(或)(绿)(色)(的)(化)(石)(象)(牙)(,则)(称)(“齿)(胶)(磷)(矿)(”可)(作)(为)(象)(牙)(替)(代)(品)(,材)(料)(多)(进)(口)(于)(西)(伯)(利)(亚)(。<br />象)(牙)(的)(挑)(选)(要)(素)(:<br />颜)(色)(:<br />象)(牙)(有)(外)(皮)(和)(内)(皮)(,出)(外)(皮)(和)(内)(皮)(部)(分)(,象)(牙)(呈)(比)(奶)(白)(色)(略)(微)(带)(谈)(黄)(色)(的)(颜)(色)(,俗)(称)(象)(牙)(色)(,<br />市)(场)(上)(的)(象)(牙)(制)(品)(,往)(往)(经)(过)(漂)(白)(加)(工)(,比)(象)(牙)(原)(牙)(要)(显)(得)(更)(白)(一)(些)(。<br />猛)(犸)(牙)(因)(在)(泥)(土)(中)(埋)(藏)(万)(年)(,牙)(质)(已)(经)(半)(石)(化)(或)(完)(全)(石)(化)(。其)(颜)(色)(也)(略)(显)(灰)(色)(,甚)(至)(是)(褐)(色)(。<br />润)(度)(:<br />猛)(犸)(牙)(属)(于)(半)(化)(石)(状)(态)(,干)(涩)(、不)(通)(透)(<br />象)(牙)(,润)(、有)(通)(透)(感)(。<br />牙)(纹)(:<br />象)(牙)(的)(牙)(纹)(的)(角)(度)(大)(于)(115°或)(小)(于)(65°;猛)(犸)(牙)(的)(牙)(纹)(角)(度)(小)(于)(90°。(并)(非)(辨)(别)(象)(牙)(和)(猛)(犸)(牙)(的)(关)(键)()<br />牙)(纹)(的)(几)(种)(情)(况)(:<br />通)(常)(所)(说)(的)(网)(纹)((菱)(形)(纹)()位)(于)(内)(皮)(下)(面)(的)(牙)(纹)(粗)(大)(明)(显)(且)(疏)(,越)(接)(近)(牙)(心)(越)(细)(越)(密)(越)(不)(明)(显)(。<br />牙)(纹)(明)(显)(的)(是)(外)(围)(,不)(明)(显)(的)(是)(牙)(心)(牙)(尖)(,有)(的)(甚)(至)(看)(不)(出)(来)(牙)(纹)(。<br />象)(牙)(越)(往)(外)(圈)(长)(得)(越)(开)(,质)(地)(越)(疏)(松)(,牙)(的)(润)(度)(差)(,网)(纹)(、人)(字)(纹)(越)(明)(显)(。<br />象)(牙)(越)(靠)(近)(牙)(芯)(,牙)(纹)(越)(不)(明)(显)(,质)(地)(越)(致)(密)(,牙)(的)(润)(度)(越)(好)(。<br />牙)(心)(一)(般)(做)(镯)(子)(之)(类)(,牙)(外)(围)(的)(边)(角)(料)(可)(以)(做)(手)(珠)(。<br />好)(的)(血)(牙)(几)(乎)(看)(不)(到)(牙)(纹)(,通)(透)(度)(极)(好)(,自)(然)(光)(都)(能)(有)(通)(透)(感)(。<br />纵)(向)(的)(牙)(纹)(,象)(牙)(略)(呈)(波)(浪)(形)(,故)(象)(牙)(纵)(向)(雀)(丝)(都)(是)(间)(断)(的)(,有)(左)(右)(错)(开)(。<br />牙)(皮)(:<br />象)(牙)(牙)(皮)(可)(分)(为)(外)(皮)((或)(叫)(表)(皮)()和)(内)(皮)(。<br />外)(皮)(顾)(名)(思)(义)(,是)(象)(牙)(最)(外)(层)(的)(皮)(。<br />象)(牙)(加)(工)(时)(都)(要)(剥)(去)(外)(皮)(,所)(以)(我)(们)(购)(买)(的)(圆)(雕)(和)(挂)(件)(上)(看)(不)(到)(。然)(而)(在)(原)(料)(象)(牙)(上)(可)(以)(看)(到)(。<br />白)(皮)(牙)(牙)(质)(疏)(松)(,罐)(口)(较)(浅)(。黄)(皮)(牙)(牙)(纹)(较)(粗)(,罐)(口)(较)(浅)(。<br />黑)(皮)(牙)(牙)(质)(好)(,罐)(口)(浅)(,是)(象)(牙)(中)(最)(上)(等)(的)(。<br />白)(黄)(黑)(只)(是)(相)(对)(的)(,是)(既)(看)(到)(的)(并)(不)(是)(很)(白)(、很)(黄)(、很)(黑)(<br />长)(毛)(由)(于)(长)(时)(间)(埋)(在)(土)(中)(,所)(以)(由)(于)(石)(化)(,故)(已)(很)(难)(区)(分)(外)(皮)(和)(内)(皮)(。<br />通)(常)(,长)(毛)(的)(皮)(色)(要)(明)(显)(地)(比)(象)(牙)(皮)(深)(。并)(且)(,长)(毛)(皮)(没)(有)(珐)(琅)(质)(。<br />牙)(心)(<br />象)(牙)(的)(牙)(心)(分)(为)(:太)(阳)(心)(、芝)(麻)(心)(、糟)(心)(。<br />中)(心)(有)(一)(小)(黑)(点)(,延)(伸)(到)(牙)(的)(管)(口)(,为)(太)(阳)(心)(,上)(等)(料)(。<br />中)(心)(有)(很)(多)(小)(黑)(点)(,为)(芝)(麻)(心)(,是)(中)(等)(料)(。<br />中)(心)(一)(片)(黑)(点)(,为)(糟)(心)(,属)(下)(等)(料)(。<br />象)(牙)(的)(仿)(制)(品)(:<br />先)(总)(结)(下)(象)(牙)(的)(基)(本)(特)(征)(:<br />1、象)(牙)(呈)(弧)(形)(弯)(曲)(的)(角)(状)(。<br />2、一)(根)(象)(牙)(平)(均)(重)(6.7公)(斤)(,长)(约)(1.5-2米)(,新)(象)(牙)(生)(长)(时)(间)(短)(,一)(般)(长)(60-70厘)(米)(。<br />3、象)(牙)(的)(横)(截)(面)(具)(有)(特)(征)(的)(勒)(兹)(纹)(理)(线)(,亦)(称)(旋)(转)(引)(擎)(纹)(理)(线)(,具)(体)(表)(现)(为)(由)(两)(组)(呈)(十)(字)(交)(叉)(状)(的)(纹)(理)(线)(以)(大)(于)(115°或)(小)(于)(65°角)(相)(交)(组)(成)(的)(菱)(形)(图)(案)(。<br />4、象)(牙)(的)(纵)(截)(面)(上)(呈)(现)(近)(平)(行)(的)(波)(纹)(线)(。<br />5、象)(牙)(牙)(质)(质)(地)(细)(腻)(,有)(一)(定)(的)(润)(度)(、通)(透)(度)(。<br />6、象)(牙)(一)(般)(呈)(白)(色)(、奶)(白)(色)(、瓷)(白)(色)(、淡)(黄)(色)(、黄)(色)(、玫)(瑰)(色)(、长)(毛)(牙)(灰)(色)(、白)(色)(、褐)(色)(、蓝)(色)(等)(,具)(有)(美)(丽)(柔)(和)(的)(油)(脂)(光)(泽)(或)(蜡)(状)(光)(泽)(,象)(牙)(的)(韧)(性)(极)(好)(。但)(现)(在)(的)(牙)(制)(品)(很)(多)(事)(漂)(白)(后)(加)(工)(销)(售)(的)(。<br />7、象)(牙)(的)(横)(截)(面)(还)(具)(有)(分)(层)(结)(构)(,且)(分)(界)(线)(较)(清)(楚)(,一)(般)(从)(外)(到)(内)(分)(为)(四)(层)(:<br />Ⅰ层)(为)(致)(密)(状)(或)(同)(心)(圆)(状)(层)(。<br />Ⅱ层)(为)(粗)(“Retzius”线)(层)(,纹)(理)(线)(夹)(角)(较)(大)(,可)(至)(124度)(左)(右)(,纹)(理)(线)(间)(距)(较)(宽)(,约)(为)(1-2.5mm。<br />Ⅲ层)(为)(细)("Retzius"线)(层)(,纹)(理)(线)(夹)(角)(较)(Ⅱ层)(小)(,平)(均)(在)(120度)(左)(右)(,纹)(理)(线)(间)(距)(很)(窄)(,约)(为)(0.1-0.5mm。<br />Ⅳ层)(为)(致)(密)(状)(或)(空)(腔)(状)(。<br />8、象)(牙)(具)(有)(油)(脂)(光)(泽)(,多)(呈)(微)(透)(明)(至)(半)(透)(明)(。折)(射)(率)(为)(1.54,硬)(度)(仅)(为)(2.5左)(右)(,比)(重)(通)(常)(为)(1.85,断)(口)(呈)(裂)(片)(状)(、参)(差)(状)(。在)(长)(短)(波)(紫)(外)(线)(下)(发)(弱)(至)(强)(的)(白)(蓝)(色)(至)(蓝)(紫)(色)(荧)(光)(。<br />常)(见)(象)(牙)(的)(仿)(制)(品)(:<br />1、骨)(头)(<br />骨)(制)(仿)(品)(大)(多)(经)(漂)(白)(而)(成)(,其)(漂)(白)(后)(显)(得)(干)(涩)(,手)(感)(粗)(糙)(、没)(有)(勒)(兹)(线)(。<br />2、象)(牙)(果)(<br />很)(有)(意)(思)(的)(东)(西)(,成)(椭)(圆)(形)(、扁)(圆)(形)(等)(不)(规)(则)(形)(,鸡)(蛋)(大)(小)(。有)(白)(色)(和)(棕)(色)(两)(种)(,一)(般)(把)(棕)(色)(的)(叫)(风)(化)(果)(。实)(际)(上)(就)(是)(一)(种)(棕)(榈)(树)(的)(果)(实)(。<br />3、赛)(璐)(璐)(<br />市)(场)(上)(非)(常)(常)(见)(的)(仿)(冒)(象)(牙)(的)(东)(西)(,就)(是)(塑)(料)(的)(一)(种)(,大)(多)(数)(商)(家)(称)(之)(为)(“海)(象)(牙)(”。模)(仿)(形)(式)(多)(种)(,从)(隔)(片)(到)(大)(摆)(件)(都)(有)(。多)(数)(呈)(现)(平)(行)(纹)(,不)(能)(仿)(制)(出)(勒)(兹)(线)(,白)(色)(呆)(板)(,不)(自)(然)(,无)(光)(泽)(。<br />4、其)(他)(牙)(仿)(制)(品)(<br />野)(猪)(牙)(、鲸)(牙)(、河)(马)(牙)(等)(,同)(样)(没)(有)(勒)(兹)(线)(。<br />象)(牙)(的)(漂)(白)(和)(染)(色)(:<br />市)(场)(很)(多)(象)(牙)(制)(品)(都)(是)(经)(过)(漂)(白)(加)(工)(的)(,主)(要)(漂)(白)(剂)(是)(双)(氧)(水)(、高)(锰)(酸)(钾)(等)(,漂)(白)(是)(大)(多)(数)(象)(牙)(必)(作)(的)(优)(化)(处)(理)(。<br />象)(牙)(制)(品)(呈)(牙)(白)(天)(然)(本)(色)(,虽)(经)(时)(间)(长)(而)(发)(黄)(,以)(豆)(渣)(浸)(泡)(后)(再)(擦)(则)(自)(然)(变)(白)(。其)(漂)(白)(后)(也)(有)(油)(润)(洁)(白)(的)(光)(泽)(,手)(感)(润)(泽)(细)(腻)(<br />染)(色)(处)(理)(的)(象)(牙)(制)(品)(也)(很)(普)(遍)(,可)(以)(染)(成)(需)(要)(的)(颜)(色)(,是)(做)(旧)(的)(一)(种)(手)(法)(。<br />象)(牙)(的)(做)(旧)(处)(理)(:<br />1、染)(色)((内)(外)(染)(色)(均)(有)(,跟)(自)(然)(氧)(化)(颜)(色)(深)(浅)(有)(区)(别)(,这)(类)(做)(旧)(手)(法)(的)(象)(牙)(制)(品)(表)(皮)(有)(色)(而)(无)(光)(,雀)(丝)(裂)(痕)(生)(硬)(,工)(艺)(、包)(浆)(均)(不)(自)(然)()<br />2、熏)(烤)((有)(机)(溶)(剂)(可)(以)(擦)(掉)()<br />3、冷)(热)(骤)(变)((产)(生)(裂)(痕)(、微)(波)(炉)(转)(转)(也)(可)(产)(生)(裂)(痕)()<br />4、浓)(茶)(浸)(泡)((用)(浓)(茶)(水)(浸)(泡)(就)(能)(让)(新)(牙)(变)(得)(有)(老)(牙)(那)(样)(的)(牙)(黄)(色)(,这)(是)(最)(常)(用)(的)(做)(旧)(方)(法)()<br />老)(牙)(雕)(的)(鉴)(别)(:<br />象)(牙)(最)(初)(为)(乳)(白)(色)(,半)(透)(明)(有)(亮)(光)(,时)(间)(久)(后)(渐)(变)(成)(黄)(或)(褐)(色)(,在)(黑)(暗)(的)(地)(方)(,紫)(外)(线)(照)(射)(下)(有)(白)(色)(到)(蓝)(色)(的)(荧)(光)(。<br />真)(品)(象)(牙)(结)(构)(致)(密)(,质)(地)(细)(腻)(,其)(比)(重)(大)(,有)(手)(头)(重)(的)(感)(觉)(;骨)(制)(仿)(品)(则)(质)(地)(疏)(松)(,其)(比)(重)(小)(,故)(手)(头)(发)(轻)(发)(飘)(。一)(般)(指)(的)(是)(牛)(角)(和)(骆)(驼)(骨)(。骨)(经)(漂)(白)(加)(工)(,磨)(光)(上)(蜡)(等)(工)(艺)(,色)(也)(白)(净)(,好)(似)(象)(牙)(。但)(骨)(含)(钙)(量)(高)(,性)(脆)(、质)(轻)(、且)(松)(、有)(细)(小)(的)(黑)(点)(和)(棕)(眼)(。<br />老)(牙)(雕)(不)(能)(光)(从)(颜)(色)(判)(别)(,还)(要)(从)(质)(地)(、器)(用)(风)(格)(、造)(型)(、花)(纹)(,款)(识)(、包)(浆)(以)(及)(雀)(丝)(的)(自)(然)(程)(度)(等)(方)(面)(判)(别)(。牙)(器)(的)(年)(份)(愈)(久)(,雀)(丝)(就)(愈)(多)(、愈)(黑)(、愈)(深)(和)(愈)(长)(,进)(而)(就)(会)(表)(现)(出)(裂)(纹)(,并)(且)(,同)(一)(件)(象)(牙)(器)(上)(,颜)(色)(还)(往)(往)(深)(浅)(不)(一)(。伴)(随)(着)(色)(泽)(的)(变)(化)(,有)(的)(器)(物)(表)(面)(,还)(会)(出)(现)(一)(根)(根)(短)(头)(发)(丝)(样)(的)(浅)(纹)(。<br />民)(间)(的)(收)(藏)(品)(多)(是)(一)(些)(小)(件)(。象)(牙)(筷)(子)(、象)(牙)(挂)(件)(、象)(牙)(象)(棋)(、象)(牙)(扇)(面)(、象)(牙)(刀)(把)(、象)(牙)(梳)(子)(、象)(牙)(人)(物)(等)(。<br />从)(雕)(刻)(品)(的)(艺)(术)(风)(格)(来)(判)(别)(。如)(清)(初)(雕)(刻)(的)(观)(音)(像)(,衣)(纹)(线)(条)(简)(练)(,有)(明)(代)(牙)(雕)(的)(遗)(风)(。由)(于)(深)(浅)(刀)(法)(并)(用)(,圆)(浑)(而)(挺)(拔)(,衣)(着)(线)(条)(下)(垂)(而)(坦)(然)(,给)(人)(以)(沉)(稳)(的)(感)(觉)(。近)(代)(仿)(制)(的)(观)(音)(像)(,衣)(纹)(线)(条)(繁)(复)(,立)(体)(感)(不)(强)(,刀)(法)(也)(软)(弱)(。盛)(世)(文)(玩)(网)(站)(<br />从)(象)(牙)(表)(面)(的)(颜)(色)(和)(裂)(纹)(判)(断)(。做)(旧)(的)(象)(牙)(器)(物)(,其)(色)(泽)(是)(为)(突)(显)(古)(旧)(故)(意)(染)(黄)(或)(熏)(黄)(的)(,所)(以)(看)(上)(去)(颜)(色)(较)(新)(,往)(往)(是)(在)(象)(牙)(表)(面)(很)(浅)(的)(的)(一)(层)(,而)(不)(是)(象)(牙)(经)(年)(久)(月)(慢)(慢)(氧)(化)(导)(致)(的)(那)(种)(古)(朴)(的)(黄)(色)(。表)(皮)(有)(色)(却)(无)(光)(,雀)(丝)(的)(裂)(痕)(也)(不)(自)(然)(,有)(的)(还)(伴)(随)(着)(一)(种)(烟)(呛)(味)(。<br />我)(们)(可)(以)(先)(了)(解)(不)(同)(朝)(代)(的)(艺)(术)(风)(格)(,再)(反)(过)(去)(把)(它)(作)(为)(不)(同)(朝)(代)(的)(断)(代)(标)(准)(。<br />象)(牙)(的)(保)(养)(:<br />象)(牙)(制)(品)(对)(湿)(度)(的)(变)(化)(尤)(其)(敏)(感)(,因)(其)(不)(仅)(自)(身)(含)(有)(一)(定)(量)(的)(水)(份)(,而)(且)(还)(具)(有)(很)(强)(吸)(水)(性)(,会)(随)(环)(境)(的)(改)(变)(而)(吸)(收)(或)(释)(放)(水)(份)(,体)(积)(也)(会)(随)(之)(膨)(涨)(或)(收)(缩)(,器)(物)(则)(会)(因)(过)(度)(涨)(缩)(而)(龟)(裂)(或)(变)(形)(。<br />象)(牙)(适)(宜)(环)(境)(:一)(般)(温)(度)(在)(15—25°C,湿)(度)(在)(15%一)(65%之)(间)(比)(较)(适)(宜)(。<br />1、要)(远)(离)(风)(口)((不)(管)(冷)(风)(还)(是)(热)(风)();<br />2、要)(保)(证)(存)(放)(环)(境)(不)(要)(温)(度)(骤)(变)(;<br />3、要)(保)(证)(存)(放)(环)(境)(不)(要)(过)(于)(干)(燥)(;<br />4、要)(注)(意)(防)(霉)(、防)(虫)(;<br />5、脏)(了)(可)(以)(温)(水)(加)(肥)(皂)(清)(洗)(,不)(可)(浸)(泡)(,要)(在)(阴)(凉)(处)(自)(然)(晾)(干)(,最)(好)(盖)(上)(块)(布)(,不)(可)(让)(风)(吹)(;<br />6、有)(包)(浆)(、笑)(纹)(、染)(色)(、老)(彩)(活)(、熏)(黄)(活)(的)(,不)(要)(用)(水)(清)(洗)(,一)(般)(用)(细)(白)(棉)(布)(擦)(拭)(即)(可)(;<br />7、象)(牙)(可)(贴)(身)(佩)(带)(,但)(洗)(澡)(时)(务)(必)(摘)(下)(,否)(则)(开)(裂)(变)(色)(;<br />8、象)(牙)(不)(可)(阳)(光)(直)(射)(,会)(使)(局)(部)(出)(现)(变)(形)(、断)(裂)(、变)(色)(;<br />微)(信)(号)(ID:shjrsc←长)(按)(可)(复)(制)((每)(天)(推)(送)(最)(新)(古)(玩)(咨)(询)(鉴)(定)(评)(估)()<br />主)(编)(邮)(箱)(:3194442319@qq.com<br />咨)(询)(电)(话)(:13761824304返)(回)(龙)(虎)(和)(,查)(看)(更)(多)(责)(任)(编)(辑)(:<br />声)(明)(:该)(文)(观)(点)(仅)(代)(表)(作)(者)(本)(人)(,龙)(虎)(和)(号)(系)(信)(息)(发)(布)(平)(台)(,龙)(虎)(和)(仅)(提)(供)(信)(息)(存)(储)(空)(间)(服)(务)(。<br />阅)(读)(()<br />)!

作者:【龙虎和代理】


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