Main content
Blue John 'discovered after 68 years'
Mr Harrison explains how a seam of Blue John stone was found after 68 years of looking.
Duration:
This clip is from
More clips from 06/08/2013
-
![]()
Questions over salaries for top charity bosses
Duration: 05:06
-
![]()
Guinea Worm Disease is 'relatively contained'
Duration: 05:55
-
![]()
Britain's biggest "fatberg" took three weeks to clear
Duration: 03:19
-
![]()
Cyber bullying is 'everyone's responsibility'
Duration: 04:15
More clips from Today
-
![]()
Tom Kingston's family call for antidepressant change
Duration: 15:48
-
![]()
Idris Elba: 'Not all kitchen knives need a point'
Duration: 07:58
-
![]()
Visiting Auschwitz 80 years after its liberation
Duration: 09:12
-
![]()
Holocaust survivor: 'I never saw my family again'
Duration: 14:39
