אילמניט – הבדלי גרסאות

 

==מקורות==

* Lane, Megan. [http://news.bbc.co.uk/1/hi/magazine/4177064.stm BBC News - How to set up a moon base], 26 August 2005

*[http://rruff.geo.arizona.edu/doclib/hom/ilmenite.pdf Mineral Data Publishing, PDF]