 |
A rock found in the abandoned lead mines at Strontian, containing intrusions of galena, July 2014. Strontiante was first discovered here in 1790 and it's from this mineral that the element Strontium was first isolated. Galena is sometimes known as "lead glance", and is an important source of silver.
|
Friday, 12 June 2015
weight
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment