More bagged Heaton's - common or garden clearies (I like clearies ):
If anyone is mad enough to try and identify clearies. The green on these is more intense than my Vitro Aqua Jewels, but the deep blue and clear are pretty much indistinguishable. Similarly lightly bubbled. The yellow ones do show a definite darker tone in a small part of the marble - the colour isn't quite perfectly evenly spread, but this isn't immediately obvious at a quick glance.