see andesite image
This particular image is a close comparison, macroscopically, of Wishstone. here
You shouldn't jump someone's case so bad when they fail to see the same features as you. Not everyone has a great monitor or image contrast control. There are as many or more subangular to rounded or "squishy" clasts in the same smooth dark grey color as the angular or arrow shaped clasts in the brushed Wishstone image, IMO. Without the interference color, extinction angle, and birefringence from a polarized cross section analysis, you are just "educated guessing" (euphemism) as to the mineralogy. Why criticise someone else for their guessing?