Hello,
Have 4 rocks that I'm not 100% sure about. Any help would be great!
1) Blueish/Green rock with brown rocks embedded in it. Looks similar to shale from the side (split into layers).
2) I believe this rock is in the "granite" group, looks like it has quartz, biotite. Has green, yellow, black and almost purplish colour.
3) Looks similar to Amphibolite, but is lighter than the sample I have. Has fine grains when I broke it apart.
4) I think it is Basalt, but would like to be sure.
Have 4 rocks that I'm not 100% sure about. Any help would be great!
1) Blueish/Green rock with brown rocks embedded in it. Looks similar to shale from the side (split into layers).
2) I believe this rock is in the "granite" group, looks like it has quartz, biotite. Has green, yellow, black and almost purplish colour.
3) Looks similar to Amphibolite, but is lighter than the sample I have. Has fine grains when I broke it apart.
4) I think it is Basalt, but would like to be sure.
