1, shape identification

Generally blocky, irregular, dumbbell, droplet and button, specific gravity of 2.32-2.5g/mm?, refractive index of 1.48-1.52, and refractive index value and SiO? content is negatively correlated.

2, color identification

The color is mainly brownish black and dark green, most of the glass meteorite development of flow structure, there are dissociated body, burnt quartz and air holes, craters and a variety of etching marks. With the exception of the Muong Nong Layered Glass Meteorite, most of the glass meteorites contain very few inclusion minerals, and some of the particulate mineral inclusions in the Muong Nong Glass Meteorite have been shown to be remnants of the parent impactor.

Characteristics: Most glass meteorites found on the surface are massive, brownish-black to light green in color, generally centimeter in size, and most often have aerodynamic fusion etchings on their surfaces. Long-term research has proved that glass meteorites have obvious differences in chemical and structural characteristics from the Earth's volcanic glass, and are not the product of geological action.

Extended information

For the laboratory study of large glass meteorite samples, you can use microscope, scanning electron microscope, etc. to study its structural characteristics and chemical properties; with electron microprobe, chemical total analysis, energy spectrometer, neutron activation method, spectrometer and so on the determination of its macronutrient and trace chemical composition; with a variety of mass spectrometers, Raman spectrometer Detection of its isotopic composition.

The fission path method to determine the age of its formation; with the wind tunnel device can be simulated in the laboratory to create artificial glass meteorite, the study of its various generative conditions and structural characteristics, etc..

Baidu Encyclopedia-Glass Meteorite Research Methods

Baidu Encyclopedia-Glass Meteorite