Things You'll Need
Rocks
Fabric dye/food coloring
Oven
Tongs
Bowl with cover
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Porous rocks have the ability to soak up fabric dyes or food coloring when heated. The heat will open the pores and allow the color to penetrate the rock's surface — afterward, you can clean and polish them too. You may want to research or experiment with various rocks to determine whether or not they can be dyed — igneous rocks, such as basalt, pumice and scoria, work well.
Step 1
Clean your rocks thoroughly under running water. Dry with a napkin or cloth.
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Step 2
Place rocks in the oven. Heat to approximately 200 degrees Fahrenheit.
Step 3
Prepare your dye solution according to the package's instructions. Use heated water so that the hot rocks do not crack or split when placed in the dye.
Step 4
Remove rocks carefully from the oven with tongs. Place them in your heated dye solution and cover.
Step 5
Leave rocks submerged in the dye overnight. Remove and rinse.
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