This is one of the test tiles fresh out of the kiln - as shown in the previous post. It's a series of lineblends of 5 different rocks from Galloway. The top two are very exciting (for me!). Collected from different places but the rock looks identical. It is an intrusion of very low iron granite. 3 and 4 are two different granites - 4 was intruded at the same time as the Lake district granite that I have on my website, but both are strikingly different. Much higher in iron and not, at first tests, that different from the very dark (when collected) granodiorite in 5.