glassy rock मीनिंग इन हिंदी

उदाहरण वाक्य

1. This gives you a large, hollow shell made of glassy rock / iron.
2. They produced tools and weapons from obsidian, the glassy rock found in the slopes.
3. The vitrophyres are dominantly glassy rocks that represent impact melt sheets that fill large impact structures.
4. While the original claim of a meteor impact had been bolstered by the finding of several meteorites and many tektites ( glassy rocks formed by the intense heat of an impact ), the new research uncovered other, older meteorites.
5. A common feature of glassy rocks is the presence of rounded bodies ( spherulites ), consisting of fine divergent fibres radiating from a center; they consist of imperfect crystals of feldspar, mixed with quartz or tridymite; similar bodies are often produced artificially in glasses that are allowed to cool slowly.
6. SiO 2 being the major chemical component, most unaltered pumices and ashes fall in the intermediate ( 52 66 wt % SiO 2 ) to acid ( > 66 wt % SiO 2 ) composition range for glassy rock types outlined by the IUGS . Basic ( 45 52 wt % SiO 2 ) and ultrabasic ( 2 ) acid rock types.