Spiritual Beads Gemstone Stretch Bracelet "Boost Your Sexual Energy" Smoky Quartz, Carnelian, Obsidian, Hematite 8mm Smoky Quartz: This stone helps you accept that sex is normal, healthy and enjoyable. It helps to cleanse your sexual centers so that energy can flow freely. It is one of the best crystals for sex for men because it increases their virility. Carnelian​: ​It recharges the energy of the sacral chakra, enhancing sexuality and restoring vitality to the female sex organs. Obsidian:​ It activates the third chakra and supercharges your ability to manifest and and create success in the world. It helps clearing the negativity, clarifying your true motivations, and helping you express your gifts.