Wednesday, 8 June 2011
Monday, 6 June 2011
Sunday, 20 March 2011
Wednesday, 16 March 2011
crystal encrustation
A blue crystal flat Roger Hiorn 157 Harpers Road SE1
em•er•ald (em′ ∂r ∂ld em′r∂ld), n 1. a rare variety of the mineral beryl that is green because of its chromium content and is valued as a gem. 2. clear, deep green.
a fluorescent mineral case
A mineralogical journey around the world
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