Herkimer Diamond, "Attunement stone"
Herkimer Diamonds are the most powerful of all Quartz crystals. Being doubly terminated, they have the ability to not only transmit their own energies, but to receive spiritual energy and to amplify and focus it intently. This mineral owes its name to Herkimer County, New York, USA, the principal place where it is found. The small, double-terminated crystals are short and stubby, formed in a hard rock matrix giving them their strength.
Herkimer Diamond, with its pure, crystal light, clears the chakras, opening channels for spiritual energy to flow. It stimulates conscious attunement to the highest level, and is particularly helpful in activating and opening the Crown and Third Eye Chakras. Because of its ability to enhance the properties of other crystals, Herkimer Diamond works well with nearly any other stone to stimulate and re-balance chakra energies.
Because of its powerful otherworldly energies, Herkimer is not a stone for children or animals. Carrying Herkimer or wearing as jewelry for prolonged periods may cause disorientation in some individuals, pair it with a grounding stone.
Herkimer Diamonds honor Angerona, the Roman Goddess of Silence, and the Goddess of the Winter Solstice. She is not only the protector of secrets, but brings the birth of the new year.
Clear crystals honor Kundalini, the Hindu Life Force Goddess; and Latona, the Roman Goddess of Light.
References:-
[Ahsian, pp.] Robert Simmons & Naisha Ahsian, The Book of Stones (Berkley, CA: North Atlantic Books, 2007).
[Eason, pp. ]Cassandra Eason, The New Crystal Bible (London: Carlton Books Ltd., 2010).
[Fernie, pp.] William T. Fernie, The Occult and Curative Powers of Precious Stones (Blauvelt, NY: Rudolph Steiner Publications, 1973).
[Gienger, pp.] Michael Gienger, Healing Crystals (Scotland: Earthdancer Books, 2009).
[Hall, pp.] Judy Hall, The Crystal Bible (Cincinnati, OH: Walking Stick Press, 2003).
[Hall 2, pp.]Judy Hall, The Crystal Bible 2 (Cincinnati, OH: Walking Stick Press, 2009).
[Kunz, pp.] George Frederick Kunz, The Curious Lore of Precious Stones (New York: Dover Publications, 1971).
[Megemont, pp.] Florence Megemont, The Metaphysical Book of Gems and Crystals (Rochester, VT: Healing Arts Press, 2008).
[Melody, pp.] Melody, Love Is In The Earth (Wheat Ridge, CO: Earth-Love Publishing House, 1995).
[Raphaell, pp.] Katrina Raphaell, Crystal Enlightenment (Santa Fe, NM: Aurora Press, 1985)
[Simmons, pp.] Robert Simmons & Naisha Ahsian, The Book of Stones (Berkley, CA: North Atlantic Books, 2007).