what material is this?? not from NC?

This home build site is pretty hot and we keep finding artifacts. So far, all the tools and points found are rhyolite. Lots of rhyolite cobbles were unearthed during grading, explains why we're finding so many things. There are lots of quartz pieces and we found one nice quartz point. Today I found this. I don't know if it is chert. But I busted open a fresh piece of rhyolite and they are not the same material. Looks like glass when wet. And whatever it is I found appears to have one edge worked. Gotta look close. Let me know what you think?

https://preview.redd.it/f35qa3lz60tg1.jpg?width=803&format=pjpg&auto=webp&s=4e1b8d9f5fcd2f8806a3e5c16b992c00a8aa733b

https://preview.redd.it/8g4pa3lz60tg1.jpg?width=751&format=pjpg&auto=webp&s=263e1c26d8486846cd49a8764154d3361e935dd5

https://preview.redd.it/cex7x6lz60tg1.jpg?width=1142&format=pjpg&auto=webp&s=2eebc0e8cc0d71008354f6fa3c8d5d34ce120f85

https://preview.redd.it/d6hti6lz60tg1.jpg?width=1276&format=pjpg&auto=webp&s=e0ca488111f3127c9ff30cbf66e2d5da9706eb9f

https://preview.redd.it/s1jwd7lz60tg1.jpg?width=895&format=pjpg&auto=webp&s=3bff60c024b299d46346d394e45c2673f488dff2

https://preview.redd.it/5li4v6lz60tg1.jpg?width=1337&format=pjpg&auto=webp&s=c84899c0327f07a372eb0015bf7ce5d910553752

https://preview.redd.it/x4r3tpti70tg1.jpg?width=1146&format=pjpg&auto=webp&s=7fd719fc2b7d7b6e1c9644893808cc1ae07d32e9