I left out the remnants of my Long Island Iced Tea. This was a mixture of variou

Question

I left out the remnants of my Long Island Iced Tea. This was a mixture of various liquors, lemon juice, Splenda, and water from the melted ice. It was left on my kitchen counter for several days:

You'll notice the bottom of the glass has a pattern:

To the naked eye, it appears fractured. I had initially thought my glass was shatterred. It even has crevasses like you'd see on a glaciar. Here's an extreme closeup of the center:

Presumably the water evaporated away, and the syrupy alcoholic remains formed a residual solid. What is the name of the process that causes it to produce such a fasicinating, complex, and irregular pattern? It seems somehow related to crystalization, but I can't account for this given my simple understanding of that process (I understand crystalization as an additive phenomenon, where molecules are attaching together to form a complex shape. This, on the other hand, appears more the opposite of that.)

Explanation / Answer

Volatile compounds are evaporated, Non voltaile compounds are left. The left out solution became saturated, then super saturated and finally the left out components started to crystallize .

such a fasicinating, complex, and irregular pattern is caused by crystallization

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