Scapolite方柱石是一种含附加阴离子的铝硅酸盐,为岩浆期后的气成矿物。宝石级方柱石于1913年初次在缅甸被发现,之后陆续在一些国家和地区发现新的产地,现今方柱石在宝石界已为人所熟知,并在首饰中被广泛应用。方柱石有较明显的荧光反应,有的还有磷光特征,荧光反应常因产地而异。方柱石分布广泛,但宝石级晶体不多见。缅甸是宝石级方柱石的重要产地。方柱石具有一组中等解理和一组不完全解理。......
2023-08-18
Andalusite
红柱石是一种十分常见的硅酸铝矿物,主要产于板岩、片岩或片麻岩中,为富铝的岩石在低温高压变质作用下的产物,与蓝晶石、矽线石为同质多象的变体。红柱石属斜方晶系,晶体呈粗糙方柱状,集合体呈放射状,形似菊花,俗称菊花石。英文名称源于宝石级晶体最初被发现的西班牙名城安达卢西亚(Andalusía)。
红柱石有很强的多色性,肉眼就能观察到一颗宝石中呈现多种颜色;常见有褐绿色、褐黄色和粉红色,因此很难描述什么颜色是红柱石的主色调。只是红柱石通常颜色的饱和度不高。
红柱石内含物形态很有特征,常见磷灰石、金红石、白云母、褐铁矿、石墨等矿物。
·粗糙方柱状红柱石晶体
·红柱石中伴有褐铁矿的铁质针状物与金红石针状内含物
Andalusite is named after Andalusia, the region in Spain where it was first discovered. Andalusite crystals are most commonly prismatic with square cross sections. Gem quality andalusite is strongly pleochroic, with the same stone appearing yellow, green, or red depending on the direction from which it is viewed.
Chiastolite is opaque andalusite that has a cross-shaped pattern.
·红柱石中的磷灰石内含物
·空晶石
·Chiastolite
空晶石是红柱石的变种,呈不透明状,在横截面呈现含有黑色炭质内含物的十字形,市场上称“黑十字石”。
·红柱石中常见含有赤铁矿的管状内含物
有关彩色宝石与矿物集萃的文章
Scapolite方柱石是一种含附加阴离子的铝硅酸盐,为岩浆期后的气成矿物。宝石级方柱石于1913年初次在缅甸被发现,之后陆续在一些国家和地区发现新的产地,现今方柱石在宝石界已为人所熟知,并在首饰中被广泛应用。方柱石有较明显的荧光反应,有的还有磷光特征,荧光反应常因产地而异。方柱石分布广泛,但宝石级晶体不多见。缅甸是宝石级方柱石的重要产地。方柱石具有一组中等解理和一组不完全解理。......
2023-08-18
海蓝宝石是绿柱石最重要的品种。宝石常见1~15克拉,也有更大的。小宝石一般颜色较浅,大颗粒宝石容易聚集颜色显得比较深。海蓝宝石通常比较洁净,高品质的海蓝宝石对净度要求更高,通常要求无瑕,肉眼可见瑕疵者会降低宝石等级。刻面宝石大多切磨成祖母绿琢型,以显示更明亮、更多的火彩。·雨滴状平行细管物是海蓝宝石最常见的内含物特征·海蓝宝石吊坠海蓝宝石通常会做低温加热处理,除去绿色调,从而使蓝色更加浓艳纯正。......
2023-08-18
Benitoite蓝锥矿是一种罕见的钡钛硅酸盐矿物。于1907年首次在美国加利福尼亚州圣贝尼托矿区发现。起初被误认为是蓝宝石。蓝锥矿在蛇纹岩中与柱晶石和钠沸石伴生。六方晶系,晶体呈六方复三角锥状。蓝锥矿色散很强,为0.044,与钻石的色散值一样,因此火彩胜过蓝宝石。·蓝锥矿六方复三角锥状晶体Benitoite is a rare blue barium titanium silicate that fluoresces under UV light. Gem-quality crystals have strong dispersion, making it nearly as brilliant as diamonds. Benitoite was discovered in 1907 in San Benito mine, California, USA, and California is the only place where gem-quality benitoite can be found. It was therefore named the official state gem of California in 1985.......
2023-08-18
Apophyllite鱼眼石是一种含水钾钙硅酸盐矿物。鱼眼石常见气液内含物,颇具特征,常伴有裂隙。·鱼眼石晶体常呈尖锥状·鱼眼石的生长纹鱼眼石是低温热液矿物,产于基性火山岩的气孔中。鱼眼石性脆,硬度不高,宝石一般用作收藏,天然晶体可作为精美的观赏石。·鱼眼石双锥状晶体Apophyllite is a widespread mineral belonging to the phyllosilicates group. It frequently occurs with zeolite in basalt and less commonly in granite cavities in massive, tabular, or prismatic form. Its clear, aqua,or green crystals have high water content and will conduct electricity but will also flake when heated, hence its name meaning “get” and“leaf” in Greek.·鱼眼石的气液内含物与裂隙......
2023-08-18
Agate Chalcedony Jasper玛瑙、玉髓和碧玉是宝石中历史最悠久的宝石品种,5000年前,人类就有应用。玛瑙和玉髓同属石英质玉石,从外观特征而言,玛瑙具有不同颜色的环带和条纹。从矿物学角度讲,玛瑙是由胶体转变而成的隐晶质石英集合体;而玉髓则未经历胶体阶段,直接生成隐晶质集合体。在宝石学中,宝石学家把玛瑙归属玉髓的变种。玛瑙和玉髓的品种和名称繁多,大都以颜色、形态和产地命名,也有一部分袭用了珠宝市场上的俗称。......
2023-08-18
·天青石板状晶体和宝石Celestite, also known as celestine, is a strontium sulfate mineral that is commonly white but takes its name from the beautiful, transparent, light to medium blue tabular crystals that it occasionally forms. It commonly occurs in evaporite deposits and occasionally forms in hydrothermal deposits.Collector’s specimens mainly come from Madagascar,Mexico, Italy, Canada or the USA.·天青石晶洞天青石属硫酸锶的矿物,产自白云岩、白云质石灰岩及热液矿脉中。天青石具有两组解理完全。切面宝石的大小一般在1~3克拉,由于硬度低,很少用于首饰,主要用作收藏。加拿大收藏有20.1克拉蓝色切面宝石。晶体和晶洞是非常漂亮的天然观赏石。天青石暴嗮后易褪色。......
2023-08-18
Garnet石榴石为岛状硅酸盐矿物,是一族矿物的总称,因晶体形状像石榴籽而得名,是首饰中应用最广的宝石品种之一,被誉为一月生辰石。石榴石因内部晶体构造相似,而同属等轴晶系,通常具有完好的晶形,常见菱形十二面体、四角三八面体,以及菱形十二面体与四角三八面体的聚形。·锰铝榴石吊坠·锰铝榴石·锰铝榴石·钙铁翠榴石......
2023-08-18
Diopside透辉石属辉石族。透辉石的典型产状是接触交代变质成因,是一种常见的矿物,但是达到宝石级的晶体不多。Diopside is a member of the pyroxene family. Crystals are equant—cubic—to prismastic in shape. Diopside also occasionally forms as aggregates of rod-shaped crystals.Diopside is most often light or yellow-green to green-brown in color.·透辉石短柱状晶体·四射星光透辉石·星光透辉石中相交的针状内含物一种含铬元素的铬透辉石,色泽鲜艳翠绿,具有璀璨的光泽度,颜色酷似祖母绿,市场认可度颇高。铬透辉石大都出自俄罗斯、芬兰,有“西伯利亚祖母绿”之称。......
2023-08-18
相关推荐