Colours and markings vary between crystals. This is for the Super Seven crystal generator from Brazil, pictured.
About Super Seven Crystal Generator (Brazil)
Super Seven, also known as Melody Stone, is a rare crystal that was discovered by crystal expert and author Melody. Super 7 can only be found in Brazil and is made up with 7 different minerals which are Amethyst, Cacoxenite, Goethite, Lepidocrocite, Clear Quartz, Rutile and Smokey Quartz. Even though you may not be able to see all 7 minerals in a particular piece, all the pieces carry the energy and vibration of all 7 minerals.
Super Seven relates to all 7 Chakras and is said to be a powerful crystal for energetically healing your spirit and mind.