Review on NATIONAL GEOGRAPHIC Expanded Crystal Growth Kit by Greg Horn

Great set and the crystals that grew in SILICONE tumblers came out prettier than my glass tumblers. YOU MUST REMOVE THE SEED STONE to use it with the light stand. They recommend a spoon for this. NO NO NO Use a dremel tool and slightly drill through the center, the seed rock will loosen and you will get a better crystal. SEVERAL CHANGES for NAT GEO:1. Please give us 8 crystal growing kits. give us 8 SILICONE cups. not 4. We paid 30-40 dollars for it. Find an easier way to remove the nucleus than using a spoon (this will destroy the underlying crystal growth).3. Your guides and videos contradict each other. (The instructions state to place the crystals in a well-lit area, while the video shows the crystals in a cabinet with the doors closed. TIPS for BUYERS and crystal growers: #1- USE A DREMEL TOOL to remove seed rock. Middle and then circle until the seed soaks in. This is the BEST WAY to keep the crystal in its best shape #2- USE ONLY SILICONE CUPS or ONLY SILICONE CUPS at all To remove them I had to smash the sides to get the crystal out.) #3-Keep half in the dark and half in the light. I say this because I RECOMMEND that crystals stored in the dark can become darker and color saturated. All of our crystals were in a well lit area and my red is pink. #4 - Unless you plan to use a backlit display stand, there is no need to remove the seed stone. AND THIS WILL GIVE YOU BETTER LOOKING CRYSTALS. SO EVEN WITH ALL THESE SUGGESTIONS, I STILL SAY THAT THIS IS A GREAT SET!