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How do I Make Copper Sulphane Crystals?

Copper sulphate crystals can be grown in the home or classroom. It's fairly easy to do. The crystals form over several days or weeks. They form in a hexagonal shape with smooth sides. They rarely form secondary crystals on the sides as some crystals are prone to do. Copper sulphate is a salt and somewhat toxic if ingested. However, it has a strongly metallic taste and causes vomiting, so accidental ingestion is unlikely. The salt is also mildly caustic, so be careful and prevent contact with eyes and skin. If contact occurs, rinse with water immediately.

Things You'll Need

Glass or ceramic container
Measuring cup
Distilled water
Copper sulphate
Glass or plastic spoon
Heat source (stove or Bunsen burner)
Clean disposable container (such as a Styrofoam bowl)

Instructions

Making Copper Sulphate Crystals
- 1
  Pour 1 cup of distilled water into the glass or ceramic container.
- 2
  Measure 1/2 cup of copper sulphate power and add it to the water.
- 3
  Place the glass container on a heat source and warm it. Stir with the spoon until the copper sulphate is completely dissolved.
- 4
  Cool the mixture slightly. Pour the mixture into the clean container and place the container in an area where it is visible but will not be disturbed.
- 5
  Check the container daily and record changes. The crystal or crystals will grow as the liquid dries. When all of the water has evaporated, the crystal or crystals are done. Remove them from the container and display out of the reach of children and pets.

Rocks & Minerals