Labradorite
Labradorite (also called Spectrolite sometimes) is a considered by mystics to be a stone of transformation and magic. It is said to clear, balance and protect the aura. It is purported to help provide clarity and insight into your destiny, as well as attract success. It is used in metaphysics for dream recall, and finding ways to use dreams in daily life. Mystically, energies of stress and anxiety are said to be reduced by labradorite. Labradorite is said to increase intuition, psychic development, esoteric wisdom, help with subconscious issues, and provide mental illumination. In crystal healing and folklore, Labradorite is said to help with eyes, sight, diagnosis, brain, digestion, metabolism, warts. Labradorite is associated with the solar plexus and brow chakras.
Lake County "Diamonds" (aka Moon Tears) 
Lake County "Diamonds" aka Moon Tears or Konocti Diamonds, are not actually diamonds, though they sparkle enough to be given a name like a diamond. They are a clear silicon dioxide (quartz) that is almost pure, although sometimes they are found in shades of lavender, pink or yellow. They are found only near Mt. Konocti in Lake County, California.According to an Indian legend. the Moon fell in love with a Pomo Indian chieftain. The moon could not stay with the chieftain because she had to light the sky at night and mark the seasons. She was so sad to leave her chieftain that she wept, and her tears were solidified as "Moon Tears" or Lake County Diamonds. As a type of quartz, they also share the properties of quartz, such as power, energy, protection and others as well as having their own metaphysical energies. Metaphysically, Moon Tears are said to relieve grief and sadness, and bright Light to feelings of depression or worthlessness. They also bring Goddess and Moon energy with a clear strong energy. Moon Tears are related primarily to the heart and crown chakras.
Lapis Lazuli (Lapis)
Lapis (lapis lazuli) brings truthfulness, openness, inner power, intuition, creativity, virility and manifestation. It strengthens the mind and body as well as increasing awareness and spiritual connection/evolution. It can help organize daily life as well as organizing and quieting a busy or restless mind. Lapis is also used to contact guardian spirits. Lapis also helps build self-confidence, and is a stone traditionally for royalty. Lapis bring spiritual love and is also known for enhancing love and fidelity within marriage. Lapis is also said to help one overcome shyness. It is associated with the throat and brow chakras and can help one say just the right thing, as if by magic. Lapis is also a stone that protects from both physical and psychic attacks. Lapis is also sad to be helpful for sinus ailments, cancer, headaches, nervous system, speech problems, pituitary gland and pain relief.
Larimar (Blue Pectolite)
Larimar, blue pectolite, found only in the Dominican Republic, is a stone of "answers from the sea of consciousness." The blue color of the larimar reflects the "sea" of all consciousness, which gives freedom from self-imposed limitations and a sense of peace in finding truth. Larimar has excellent energy for working with sea creatures of all kinds. It is particularly good for communication with dolphins. It has some ability to enhance communication in general, with other animals, as well as people. It can be used for dimensional and cellular work, and stimulates the heart and higher chakras. Being open to answers from the sea of consciousness gives a sense of serenity, love and peace. Larimar is good for calming excess energies and it balances energies.It is also used in crystal healing and folklore for healing maladies of the throat and upper respiratory system, schizophrenia. In addition, it can help one maintain one's personal energy and independence in a calm, collected fashion. Larimar is associated with the throat chakra and the Water element.
Larvikite (Norwegian Moonstone)
Larvikite is said to be an excellent stone for various psychic and esoteric uses. It is said to stimulate and enhance inner vision, psychic abilities, past life recall, remote viewing of the past, inter-dimensional travel andm ore. Larvikite is also said to be excellent for Elemental Magick and to connect with nature spirits. It is said to help one read between the lines to understand what others mean on both a conscious and unconscious level. On a physical level, crystal healing lore says that Larvikite is good for renewing and maintaining vitality and youthfulness, as well as brain maintenance and healing. Larvikite is generally associated with the third eye and throat chakras.
Lavulite (Sugilite)
See Sugulite
Lazulite
Lazulite is an excellent stone for psychic and intuitive abilities and work. It is said to stimulate the third eye, and bring energy for astral travel, psychic visions, clairaudience and channeling. It is also used to reduced worries and bring insight. Some say it is a great stone for making negotiations. Lazulite is said to be helpful freducing stress and raising self-esteem. It is an excellent crystal for meditation. In the physical realm, Lazulite is used in folklore and crystal healing for pineal gland, liver, headaches, stress-related illness, sunsensitivity, endocrine system, immune system, and addictive behaviors.
Lemurian Seed Crystals 
Lemurian Seed Crystals are crystals that are reputed to have been left by the Lemurians, an advanced ancient civilization, to teach and guide us in this time. These crystals are said to have been programmed with conscious connection and love. Lemurians hold and transmit messages of unconditional love, equality, and spiritual teachings. They are also great for dream work and dream interpretation. Lemurians have a very Yin or feminine energy, and for all their power are more gentle-feeling energetically than Yang/masculine crystals. They are very powerful tools for meditation and for healing on all levels. They are excellent for clearing and balancing all chakras.
Lepidochrosite
Lepidochrosite (lepidocrocite) is a stone that is said to bring one to choose highest love and integrity. It also eliminates distraction and confusion, helping one think clearly. Because of all this, it lessens negative thinking and negative mental habits. Physically, lepidochrosite is used for circulation. When found in combination with quartz, the quartz amplifies the properties of the lepidochrosite.
Lepidolite
Lepidolite is a stone of calm, trust, and acceptance. It has a strong relaxing and calming effect. It brings hope and is a stone of transformation in that it helps one get through transitions with trust that everything will ultimately turn out for the best. It engenders and enhances self-love, patience, and optimism. Emotionally, lepidolite is an excellent healer. It greatly decreases stress, anxiety, depression, manic-depression, despondency, PTSD, anger, and other traumas, panic attacks, and addictions. Psychically, lepidolite is used for dreamwork, rebirthing, and is also good for dream recall. Lepidolite is also a protective stone that brings success in business or career. It can also bring a growing energy to gardening and agriculture. Physically, lepidolite is helpful for healing of glands, immune system, skin, nails, hair, DNA, enzyme balance, addiction and alcoholism recovery, pregnancy, childbirth, and general healing. Lepidolite is related primarily to the heart chakra, and also to the crown chakra. When combined with rubellite (pink tourmaline) it is an extraordinarily powerful agent for calming and healing, especially in the emotional areas.
Libyan Desert Glass
Libyan Desert Glass is natural glass which was created naturally from a meterorite impact. It is found only on the edge in the Great Erg desert. It is used metaphysically for good luck, learning, drawing money, and increasing business profits. Libyan Desert Glass is said to prevent absorbing negative energy while doing energywork or healing. It is used as an ascencion tool as well. In crystal healing and folklore it is used for tumors, growths, nervous system balance, thymus, and immune system building. It is related primarily to the Solar Plexus Chakra.
Lithio-Laser Crystals
Lithio-Laser Crystals are extremely powerful crystals. They can break down internal barriers to inner growth that may bring pre-verbal issues to the surface to be integrated and healed. They integrate on levels of mind, body, emotions and spirit. This can heal dis-ease of any of these aspects of one's being, making these crystals powerful healers. If one is not ready for the intensity of these crystals and removal of these inner barriers, the person may feel extreme distress or emotional overload. Lithio-Laser Crystals can help access New Direct DNA Altering as Sacred Bridge Crystals, and can assist lightworkers with the changes that Earth is going through.
Lithium Quartz
See Quartz, Lithium
Lodestone (Magnetite)
Lodestone (Magnetite) is used in many ways. It can align the chakras, and balance yin/yang energies. It is used to lessen or dispel grief, fear, anger, confusion, and attachment. It helps relieve burdens and increase energy and endurance. It is said to have been used to make soldiers invulnerable. Lodestone has a receptive, attracting energy that attracts power, as well as good fortune, and love. It also guards against infidelity. Lodestone is related to the astrological signs of Aries, Capricorn, Aquarius, and Virgo. It is said to strengthen the circulatory system, help with healing blood and bleeding problems, alleviate pain, boost the immune system, relieve agitation and depression. Lodestone is also said to be excellent for enhancing acupuncture. Magickally, lodestone is used for its power of attraction, and can be placed on an altar or worn during a ritual to increase a spell's power. It's been used for millennia for amulets and talismans. Lodestone is excellent for grounding and protection from evil and spells.
Lodolite (Lodolite Quartz, Lodelite, Lodalite, Scenic Quartz, Garden Quartz, Landscape Quartz)
Lodolite (Lodalite, Lodelite) is a type of included quartz crystal with inclusions of many possible colors and types, often having the look of gardens, landscapes, or underwater scenes. Thus, lodolite is often called garden quartz, landscape quartz, or scenic quartz. It's often used in meditation practices. Another metaphysical use of lodolite is to bring energies to effect manifestation of one's desires. Lodolite is also said to enhance communication with beings on the spiritual plane and heighten one's spiritual energies. It is used mystically to increase ESP and bring knowledge from your past lives. Lodolite is said to bring loving energies and energies of gentle strength. Mystically and in crystal healing, lodolite is purported to be an excellent healing stone bringing strong healing energies and energetic shifting so that healing will occur. Lodolite is associated primarily with the crown chakra.