Colored Crystal Recipes

These crystals are deep violet if you use pure chromium alum. If you mix the chromium alum with regular alum you can get lavender crystals. This is a stunning type of crystal that is easy to grow.

Many people find this to be the most beautifully colored crystal you can grow yourself. This crystal is also easy to grow. You can order this chemical or you may be able to find it sold as an algicide for use in pools, fountains, or aquaria.

Sugar crystals grown using white sugar are clear, though they can be made any color using food coloring. If you use raw sugar or brown sugar, your rock candy will be naturally gold or brown.

Potassium dichromate crystals will be bright orange rectangular prisms. It's an unusual color for crystals, so be sure to give it a try.

Don't be scared off by the 'cyanide' part of the name. The chemical is not particularly hazardous. This recipe produces beautiful red monoclinic crystals.

These crystals are clear. Though they do not have bright colors, they can be grown quite large and in a wonderful array of shapes.

Silver crystals are a common crystal to grow for observation under a microscope though they can be grown larger, too.

These white baking soda or sodium bicarbonate crystals are intended to simulate stalactite formation in a cave.

Making crystals that glow when exposed to black light is as easy as making non-glowing crystals. The color of the glow you get depends on the dye that you add to the crystal solution.