玉是一种做装饰用的矿石。玉指的是两种硅酸盐矿物质含量不同的变质岩。
软玉是一种含钙、镁、铁等微晶石的透闪石。其中各种矿物质含量均匀的矿石叫做阳起石(柔滑的纤维状矿物是构成石棉的主要物质)。铁含量越丰富,玉的颜色就越绿。
翡翠是一种钠和铝含量丰富的辉石,是由以硬玉为主的细小纤维状矿物微晶纵横交织而形成的致密块状集合体。 更多优质货源请访问中国进出口网
从史前开始,软玉和硬玉就被用来雕刻成装饰品。硬玉和石英的硬度相当。软玉要柔软一些,但却比硬玉更加坚硬。直到19世纪的时候,一位法国的矿石专家才将两种不同的玉石区别开来。
软玉也可以像奶油一样的白色(中国称之为“羊脂玉”),软玉也会呈现出不同程度的绿色,而硬玉的颜色范围就广得多,有蓝色、淡紫色、紫红色、粉红色和翠绿等颜色。两种玉石相比之下,硬玉更加稀有一些,世界上只有12个地方有记载发现硬玉。无论是在历史上还是在现代,半透明的翠绿翡翠都是最受人们欣赏和喜爱的。“格查尔”玉为明亮的绿色翡翠,产自危地马拉,中美洲文化特别珍爱这一款玉石,而“翠鸟”玉为嫩绿色翡翠,产自缅甸,十分受19世纪之后的中国达官贵族的喜爱。 更多优质货源请访问中国进出口网
玉石规格:
硬度:7
绿色,随着矿井的加深,玉的颜色有所不同
亮光可以穿透玉石
我们同时也销售优质河玉,硬度为8.5,祖母绿
Jade is an ornamental rock. The term jade is applied to two different metamorphic rocks that are made up of different silicate minerals:
Nephrite consists of a micro-crystalline interlocking fibrous matrix of the calcium, magnesium-iron rich amphibole mineral series tremolite(calcium-magnesium)-ferroactinolite (calcium-magnesium-iron). The middle member of this series with an intermediate composition is called actinolite (the silky fibrous mineral form is one form of asbestos). The higher the iron content the greener the color.
Jadeite is a sodium- and aluminium-rich pyroxene. The gem form of the mineral is a microcrystalline interlocking crystal matrix.
Nephrite and jadeite were used from prehistoric periods for hardstone carving. Jadeite has about the same hardness as quartz. Nephrite is slightly softer, but is tougher than jadeite. It was not until the 19th century that a French mineralogist determined that "jade" was in fact two different minerals.
Nephrite can be found in a creamy white form (known in China as "mutton fat" jade) as well as in a variety of green colors, wheras jadeite shows more color variations, including blue, lavender-mauve, pink, and emerald-green colors. Of the two, jadeite is rarer, documented in fewer than 12 places worldwide. Translucent emerald-green jadeite is the most prized variety, both historically and today. As "quetzal" jade, bright green jadeite from Guatemala was treasured by Mesoamerican cultures, and as "kingfisher" jade, vivid green rocks from Burma became the preferred stone of post-1800 Chinese imperial scholars and rulers.
Specifications :
Hardness 7
color Green and varies as per depth of mine
Light Penetrates
High Quality River Jade is also available
Hardness 8.5
color Emeralds
巴基斯坦软玉NEPHRITE JADE