ES2 Metamorphic Rocks - Quiz No. 1 - Question 2


1 mm

That's right, this is blue-green hornblende, in a garnet-grade amphibolite from Scotland. You can just make out the two cleavages. The pale brown grain on the right is hornblende in a different orientation, showing another absorption colour.

Now go on to question 3.

Emergency Exit

DJW - August 1997