A very delicate Violet shade, chalky in feel and use.
Wierdly you can totally erase the marks with your finger. Anyway the question on everyone's lips what is Augite Porphyry?
Well...'Porphyry is a textural term for an igneous rock consisting of large-grained crystals such as feldspar or quartz dispersed in a fine-grained silicate rich. Augite is an essential mineral in igneous rock, for example, gabbro and basalt.'
A 100ml jar containing several pieces.