Showing posts with label Visible gold circled. Show all posts
Showing posts with label Visible gold circled. Show all posts

Monday, 8 August 2011

East Malartic Porphyry Swarm ore


lots of quartz veining



visible gold circled

several generations of quartz veins

yellow line separates porphyry on bottom from 
sheared basalt above.
Note that quartz does not continue into basalt