Rock 365 : Day 292 : Markfieldite

20101019

Day 292 : Markfieldite is an obsolete name for a microdiorite, from
the Late Precambrian (approximately 600 Ma) near Markfield in
Leicestershire. This sample is from just to the east, from near Groby,
England. Keele collection.

Advertisements

~ by hypocentre on October 25, 2010.

 
%d bloggers like this: