Help Tremadoc fossil ID needed

[PaleoOrdo]

In a early Tremadoc, Ordovician site, the Alun-shale formation, I found this fossil, only 0.1-0.2 mm in diameter, visible in microscope. It seems to be crystallized, could it be a brachiopod? If so which kind of brachiopod? 

[ynot]

Looks coral-ish to me.

Can we see other angles - side and back?

[PaleoOrdo]

Thanks for reply. I do not have that advanced microscope to take picture from the sides, but I managed to take a better picture and enlarge it a little more so we can see a more #D image, see the first picture lover part: lines bending down toward the shale surface. Also I show another fossile, picture 2, in the same stone which have nearly the same size, but maybe is something different? 

 

[PaleoOrdo]

The first fossil turn out to be a insect-egg, since it changed color today. The other fossil, however, must be a fossil, I not know which animal.