Hyalotekite : (Ba,Pb,K)4(Ca,Y)2(B,Be)2(Si,B)2Si8O28(F,Cl)
Photo added to mindat.org
“White mass of hyalotekite in the center of the pic
In Coll. M. Slama (ex Coll. Jaroslaw Skupiewski)
Canon EOS 600D with Canon MP-E 65mm f/2.8 1-5x, stacked from 25 Images using Zerene Stacker (Dmap)”
Martin Slama - 18th March 2018
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