Crystal growing: potassium alum

Potassium alum, an old favourite in crystal growing at home. In childhood, I read a book on crystals, and it mentioned this compo

Crystal Growing Kit Spares Aluminium Potassium Sulphate and MonoAmmonium Phosphate. two main types and shapes of crystal which are represented by the

Crystal Growing Aluminium Potassium Sulphate & MonoAmmonium Phosphate Making

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Canada's National Crystal Growing competition

Science, And Some Sparkle! Kids Can Grow Crystals In, 42% OFF

Science, and some sparkle! Kids can grow crystals in this national