HealingCrystals.com tells us that, "Quartz is the most powerful healing stone of the mineral kingdom, able to work on any condition. "Clear Quartz is known as the stone of power and amplifies any energy or intention. Clear Quartz protects against negativity, attunes to your higher self, and relieves pain."
TheHealingChest.com tells us that, "Clear quartz is highly prized for its ability to clear the mind of negativity to enhance higher spiritual receptiveness. It is considered the master of all healing crystals due to its ability to magnify or amplify healing vibrations of other crystals. This clear quartz benefit is at the heart of clear quartz meaning.
Appreciated for healing and protective properties since ancient times. Clear quartz stones have been, and still are, believed to be actual living things that take a breath only once each century."
Firemountain Gems tells us: "Smoky Quartz: Wards off stress while promoting tolerance and resolve in difficult situations...a protective stone, with a strong association with the earth and base chakras, making it ideal for environmental consciousness...counters fear, overcomes depression and brings about emotional stability while facilitating positive, practical thinking with clear insights."