Oh, I didn't know that those bubbles were made of wax! Well, thanks for the explanation, Asylum! :)
Regarding the phosphorus, Wikipedia is your best friend, but since it's quite hard to deal with I'll mention a few key points:
1. It's insoluble in water although denser: have you present that oil floats if submerged in water? Well, phosphorus does the same thing! (hence explaining the floating bubbles). The other component can be an organic liquid and Mollux can produce the reaction in its shell and then release the attack. Simple!
2. It's liquid form assumes a waxy appearance and a white/yellowish tint. If hot enough, it can have a red color (fitting nicely with Mollux's shiny form), although less poisonous (hence explaining the rarity of the shiny one). Some detergents and pesticides contain small quantities of phosphorus, if you look closely. (and they can be very poisonous and corrosive, if not handled wisely! Usually they have the "environment warning", you know… the little dead fish with the black river and the dead tree. See how lethal phosphorus can be?)
3. I said that Mollux's shell contains phosphorus, but I didn't say how much. It can simply be used as a reactor or as a poison (little quantities are enough for whatever reaction. If I recall right, 50 mg kills a human and can be employed for bombs and matches).
4. If some other user has problems for the same reason I can make sure that the phosphorus is contained in its rocky parts (phosphorus can be found in rocks and minerals). It's going to be less meaningful, but could still work.
5. That's what the extra entry is for. If the community wants, it can ignore the White entry and replace it with the extra.
Hope I made some points clear. I'll do some more researchs, if you want. And if some other mad scientist can help me I'll really appreciate!
If you think you can withstand more scientific stuff, here is a lookalike link to my post:
Originally Posted by Fat Darklatias92
Thanks to everyone!