- - Naturally occurring black volcanic glass
- - What hard, dark, glass-like rock is formed in rapid lava solidification?
- - Naturally occuring volcanic glass
- - Oddly bromidic sand tainted volcanic glass
- - Hard rock outside broadcast with two chaps
- - volcanic glass in observation at india is broken
- - Glass made of lava
- - Glass made from lava
- - Dark glass formed by cooling lava
- - Princess in Bosnia breaking glass
- - Black glass from old boy with two blokes
- - Old boy and two blokes rock
- - Glass is raised by girl in Scots town
- - Vicious Scotsman pursuing alumnus produces glass
- - Don't start to steal two men's glass
- - On first of burglaries, help is given about breaking glass
- - Naturally-occurring volcanic glass
- - Glass is raised by detective in Scots town
- - Dark volcanic glass
- - Volcanic glass
- - BlackRock's contribution to foreign aid is borrowed back
- - Around island, old band is broadcasting hard rock
- - Rock band is unsettled touring India following row essentially
- - Glasslike rock
- - Rock band I love is playing
- - Volcanic gem
- - Gem from lava
- - Some foreign aid is bought back as result of volcanic activity
- - Glassy volcanic rock
- - Black volcanic rock
- - Rock bands I love: I must be dancing!
- - Relative of perlite
- - Arrowhead material
- - Black stone
- - Igneous rock
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