It’s a little disconcerting that you have been selling specimens as meteorites, having self-identified them and yet you have shown nothing on any of your various posts that have meteorite characteristics. You’ve also ducked all attempts to persuade you to get any of your rocks properly tested and in one post accused me of working for the Beijing Planetarium and trying to trick you into sending me one of your rocks (no thanks).
You’re now asking questions that demonstrate you actually know nothing about meteorites at all. If you really want to learn (do you?) then I think you need to take a step back and start with the basics. Jumping in at the deep end and reading research papers isn’t going to give you that knowledge and neither is looking at unattributed pictures on the internet from people who know little more than you do (eg the amateur Russian site you referenced on another thread where the specimens being shown were not meteorites at all).
I don’t know if you will be able to find these books in Ukrainian or Russian, but I would highly recommend “Rocks from Space” for an introduction and “The Cambridge Encyclopedia of Meteorites for a detailed look at typology (plenty of pictures). Both books are by O. Richard Norton.
https://www.amazon.co.uk/Rocks-Spac...-Astronomy/dp/0878423737?tag=treasurenet01-20
https://www.amazon.co.uk/Cambridge-...ard-Norton/dp/0521621437?tag=treasurenet01-20
When you refer to “spherules”, I assume you mean “chondrules” and are referring to chondrites. It’s untrue that none of this group of meteorites are rare. Enstatites are pretty scarce, Rumuritites and Kakangarites are very rare. These are all chondrite meteorites. Some of the sub-classes of carbonaceous chondrites are also rare.