By
Peter Rosewarne
Sifting
through my collection in order to catalogue and assess specimens more fully has
got me thinking more about some of their mineralogical and crystallographic
properties. Why are some examples of the same mineral one colour and others
another? Why are some stubby and others prismatic? What crystal system do they
each belong to? What is ilvaite or axinite or vivianite?
I’m
fascinated by the interesting habits that some minerals exhibit which in many
cases don’t see...
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