Glass meteorites are rare and rare, and they are worthy of collection. If you want to collect them, you will have to identify the true and false. The following small series tells you some small methods for the identification of glass meteorites. First, the appearance of features 1. Color: Natural glass meteorite is mainly yellow-green color, with good transparency and brighter and brighter colors. 2, the appearance of the material pores and imitation pores: natural glass meteorite appearance of the stomata margin is more sharp. 3. The cracked surface of natural glass vermiculite is relatively neat and has no stress cracks. Second, gemological routine instrument identification 1. Refractive index: The refractive index of natural glass vermiculite is 1.48-1.49. 2. Polarizing mirror: The stress of glass vermiculite imitation in the process of glass formation produces anomalous birefringence, which is characterized by streaked or snake-skinned extinction under polarizing mirror. Natural glass meteorites generally do not present such a sight. 3. Specific gravity: The proportion of glass vermiculite is relatively stable, which is 2.35 (+0.2, -0.2). Third, infrared inspection In the range of 2000-4000 wavenumbers, channels below 3600 are channels, while glass meteorites have absorption peaks. In the range of 400-2000 wavenumbers, the main peaks of vitreous stones and imitations are also necessarily different. Down jackets and cotton jackets Changzhou Xinzhi Chain Information Technology Co.Ltd , https://www.zgczxzl.com
January 28, 2024