Fascinated by the photographs in the previous post I searched for more stones in our small stone rack and the results we can see below. Again I don’t know much about their composition but when I’ll know more I’ll update this post so you shall come back later and check this entry.

I don’t know whether this reddish color is caused by some iron oxides or is a sign of some kind of specific minerals. Either way, the stone is very beautiful.

This piece of stone was collected during my trip to Phoenix, Arizona (USA).

Beautiful combination of a sandstone with quartz stripes, stone collected from a mountain river in Romania. I also have a couple of sands from the same river banks, I will see whether I can take a photo of the sand samples too.

Stone with very high content of mica (possible biotite). Actually looking from one side at the stone you can see many thin mica layers. Check also 1552 NZ-NE or 0186 GR-CY for mica containing sands.

Granodiorite stone collected from the Dresden Heide forest, at the northern city outskirts. The local stone is also known under the name Lausitzer granodiorite (or just simply granite) and it is industrially used for various purposes, mostly in construction.