‘Gneiss’ Rocks
Meteor Crater in Arizona. The crater is approximately one mile across and 550 feet deep.It is believed to have formed 50,000 years ago.
From Dr David Dutton
Share your ‘Gneiss’ Rocks
Email rosy@pesgb.org.uk with your photos
Mon 05 August 2019
Category: Gneiss Rocks
Meteor Crater in Arizona. The crater is approximately one mile across and 550 feet deep.It is believed to have formed 50,000 years ago.
From Dr David Dutton
Share your ‘Gneiss’ Rocks
Email rosy@pesgb.org.uk with your photos