谁了解宝石级正长石吗？可以科普一下吗？

Orthoclase正长石 
A colorless to champagne yellow stone, the current chief source for gem-quality Orthoclase is Madagascar, with other deposits distributed worldwide. Transparent gems are sometimes sold as Sunstone or Candlelight Labradorite and can be quite attractive. Opaque to transluscent cat's-eye cabochons are also seen, with silky threads. 
作为一种无色至香槟黄色的宝石，目前宝石级正长石主要来自马达加斯加，但在世界各地均有分布。透明的正长石有时被当做太阳石或烛光拉长石卖，非常美丽。 还能见到不透明至半透明的带丝线的正长石猫眼蛋面（素面）。 
Orthoclase: Brazil巴西正长石 
A variety of orthoclase known as Peristerite is sometimes sold as Moonstone. Peristerite also gives a blue shimmer to the granite gem known as Larvikite. 
一种叫篮彩钠长石的正长石有时被当做月光石卖。篮彩钠长石有时也会给一种叫歪碱正长岩的花岗岩带来蓝色闪烁光。 
Perthite条纹长石 
This gem is similar in color and opacity to the related Amazonite, but with prominent webbing or veining (for picture, see the Amazonite topic above). Perthite is sometimes seen labeled as the more well-known Amazonite. Colors range from blue-green to pink to yellowish. Prominent sources are found in the United States (Colorado and Virginia), Norway, Canada, Brazil, India, Madagascar and Zimbabwe. 
这种宝石与相关的天河石在颜色和不透明度方面相似，但有突出的带状物和纹理。条纹长石有时可见粘贴更著名的天河石的标签。著名产地为美国，挪威，加拿大，巴西，印度，马达加斯加和津巴布韦。 
Sanidine透长石 
Somewhat rare in gem quality, deposits exist in Germany and Idaho. The faceted examples I have seen have been a light yellow. Because production has been too low to ensure a steady supply for the jewelry trade, this is mainly a stone for collectors and custom pieces. 
透长石很少有宝石级的，产地有德国和爱达荷州。见过的切面样本为浅黄色。因产量不足以保证持续供应，这种石头主要为收藏者提供或作为个人定制品。 
Sanidine: Madagascar马达加斯加透长石