[Rockhounds] Fun with Sodium Carbonate...

[Brett Allen Johnson]

I am trying to build a nice collection of all the Carbonates. I have started my collection with both the massive form (calcite travertine, smithsonite nodules, rhodochrosite stalactite, etc) and large individual crystals (rhodochrosite cubes, calcite points, siderite blades, etc).
Recently, I found NaCo3 at the hardware store (pool PH thingy). It comes in a powdery form and it easily dissolved in water.
One of the crystal growing website says, "...to make a stalactite." by using a solution of water / NaCO3 and wool string. That is fine and dandy for a massive form of the crystallized NaCO3, but I would like to large crystals of NaCO3, too.
Any Suggestion???




      

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