The "proper" naming and classification of your extremely fine-grained rocks only on the basis of an X-ray phase analysis and images is simply not possible.

More background information is required, such as:

Exact locality, outcrop description, geological-tectonic environment,

as well as

Detailed description of the rock microstructure based on petrographic thin sections.

Only then does an accurate rock classification make sense!

Hi Muhammad Hassan Agheem It looks like a flint nodule to me. See https://en.wikipedia.org/wiki/Flint

HTH, Alastair.

it seems to siliscified listvenite

Hello,

The samples seem to be of impure "Nodular chert" (also because of the conchoidal fractures they show).

You can get some priliminary info about chert under (+references therein):

https://en.wikipedia.org/wiki/Chert#:~:text=Chert%20(%2F%CB%88t%CA%83%C9%9C%CB%90rt,replacement%2C%20as%20in%20petrified%20wood.

Nevertheless, as Dr. Grundmann has suggested, more information about the geological background of the samples (and also petrography) is needed for a reliable identification.

Good luck

Muhammad Hassan Agheem and Nima Nezafati your Wikipedia article says “nodular chert is most common in limestone …” and ”Where chert occurs in chalk or marl, it is usually called flint.” Thus my description of it as a flint nodule appears to be correct especially as both sets of X-ray data contain significant calcite and dolomite, i.e.limestone.

It seems you are right. Thank you🙏

Dear all,

Thanks alot for your feedback. I am also going to share the geochemical data. Kindly give a check. May be we will in better position to give a proper name to the specimen.

Regards

Hello Agheem sab,

Already got good responses, so may be a bit late. The photo seems very fine grained, so chert can be a better option, however to make it sure anda check with HCl can be confirming point to see if it is chert or calcit.

Struck the samples against a steel blade. If sparks are generated, it is Flint. You also can upload the same info at Mindat.org. Many of their members, mineral collectors and mineralogists, are super knowledgeable.