Naked Science Forum

Non Life Sciences => Geology, Palaeontology & Archaeology => Topic started by: Iwonda on 18/01/2020 23:18:10

Title: What type of glass is this that I found in some rock fragments?
Post by: Iwonda on 18/01/2020 23:18:10

I've come across several pieces of what I think is glass inside of several different rocks and some even had glass coating the outside. It's found in both igneous and sedimentary rocks, this was an area where a lot of the rocks would set off a metal detector. These photos were all taken with a digital microscope.
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Title: Re: What type of glass is this that I found in some rock fragments?
Post by: RD on 19/01/2020 20:08:43

Quote from: Iwonda on 18/01/2020 23:18:10

(https://www.thenakedscientists.com/forum/index.php?action=dlattach;topic=78467.0;attach=30022;image)

If it has any crystals it's not a tektite (https://en.wikipedia.org/wiki/Tektite#Characteristics).

Title: Re: What type of glass is this that I found in some rock fragments?
Post by: Iwonda on 20/01/2020 04:58:16

Could it be impact melt glass? I also came across what I think could be shocked glass. What's the difference between shocked glass and shocked quartz?