Crystal & Ba Zi Glossary

Also called the Four Pillars of Destiny, Ba Zi is a Chinese astrology system based on the year, month, day, and hour of birth. Each pillar is expressed as a pair of characters from the Heavenly Stems and Earthly Branches, producing a unique energetic blueprint for each person. Ba Zi is used to identify elemental strengths and deficiencies, predict life cycles, and — at Arcane Pavilion — determine which crystals will most effectively balance a person's energy.

Wu Xing is the foundational framework of Traditional Chinese philosophy, medicine, and cosmology. It describes five dynamic forces — Wood (木), Fire (火), Earth (土), Metal (金), and Water (水) — that cycle through nature, the human body, and all phenomena. Rather than static categories, the five elements are understood as phases of transformation. Each element generates the next (the generating cycle) and controls another (the controlling cycle), creating a dynamic system of balance. At Arcane Pavilion, we use a person's dominant and deficient elements to select crystals that bring the system back into equilibrium.

Wood represents growth, expansion, creativity, and new beginnings. In the body, Wood governs the liver and gallbladder. People with dominant Wood energy tend to be visionary, flexible, and driven — but can become indecisive or anxious under stress. Crystals for Wood: Green Aventurine, Malachite, Jade, Peridot, Moss Agate.

Fire represents passion, expression, leadership, and warmth. In the body, Fire governs the heart and small intestine. Fire-dominant people are magnetic communicators but may burn out or act impulsively without grounding. Crystals for Fire: Carnelian, Red Jasper, Garnet, Sunstone, Ruby.

Earth represents stability, nurturing, practicality, and abundance. In the body, Earth governs the spleen and stomach. Earth types are natural anchors — reliable and caring — but may stagnate or doubt themselves. Crystals for Earth: Citrine, Tiger's Eye, Yellow Jasper, Aragonite, Smoky Quartz.

Metal represents precision, discipline, clarity, and integrity. In the body, Metal governs the lungs and large intestine. Metal-dominant people excel at structure but may struggle with emotional flexibility. Crystals for Metal: Clear Quartz, White Moonstone, Selenite, Labradorite, Pyrite.

Water represents intuition, wisdom, depth, and adaptability. In the body, Water governs the kidneys and bladder. Water types are deeply perceptive but can become overwhelmed or isolated. Crystals for Water: Black Obsidian, Amethyst, Aquamarine, Lapis Lazuli, Black Tourmaline.

A set of ten symbols in Chinese metaphysics, each corresponding to a combination of Yin or Yang energy and one of the Five Elements. The Heavenly Stems cycle alongside the Earthly Branches to form the 60-year cycle used in Ba Zi and Chinese calendar systems.

A set of twelve symbols in Chinese metaphysics, each corresponding to an animal sign (Rat, Ox, Tiger, Rabbit, Dragon, Snake, Horse, Goat, Monkey, Rooster, Dog, Pig) and an associated elemental energy. Combined with the Heavenly Stems, the Earthly Branches form the structural framework of a Ba Zi chart.

In Five Element theory, the generating cycle describes how each element feeds and strengthens the next: Wood feeds Fire, Fire creates Earth (ash), Earth contains Metal, Metal holds Water, Water nourishes Wood. Understanding this cycle helps identify how to support a deficient element.

In Five Element theory, the controlling cycle describes how each element restrains another: Wood parts Earth, Earth dams Water, Water extinguishes Fire, Fire melts Metal, Metal cuts Wood. This cycle prevents any single element from dominating and is used to diagnose imbalances.

A complementary wellness practice in which crystals and gemstones are used as tools to support physical, emotional, and energetic wellbeing. Crystal healing is not a replacement for medical treatment. Practitioners use crystals based on their vibrational properties, colour, mineral composition, and traditional associations to support intention-setting, meditation, and energetic balance.

A Sanskrit term meaning "wheel" or "disk," referring to seven primary energy centres in the body according to Hindu and yogic traditions. Each chakra governs specific physical organs, emotional themes, and spiritual qualities. Crystals are often selected based on their colour and vibrational resonance with specific chakras: Root (red/black), Sacral (orange), Solar Plexus (yellow), Heart (green/pink), Throat (blue), Third Eye (indigo), Crown (violet/white).

In crystal healing, vibrational frequency refers to the energetic rate at which a crystal is believed to oscillate. Different crystals are associated with different frequencies — higher frequencies (such as amethyst or selenite) are linked to spiritual clarity, while lower frequencies (such as obsidian or hematite) are associated with grounding. This concept draws loosely from the physical science of crystalline lattice vibration but is used metaphysically in healing practice.

A scientifically documented property of certain crystals — most notably quartz — whereby the crystal generates an electric charge when subjected to mechanical pressure, and conversely expands or contracts when an electric field is applied. This is the basis for quartz's use in clocks, electronics, and transducers. Crystal healing practitioners sometimes reference this property when discussing quartz's energetic responsiveness, though the healing application is metaphysical rather than strictly scientific.

The practice of clearing accumulated or stagnant energy from a crystal so it returns to its natural vibrational state. Common cleansing methods include: running water (for water-safe stones), sound (singing bowls, tuning forks), moonlight (particularly full moon), sunlight (brief exposure only — some stones fade), sage or palo santo smoke, and placement on a selenite charging slab. At Arcane Pavilion, every crystal is cleansed before dispatch using sound, moonlight, and sage.

The practice of holding a crystal and focusing a clear, specific desire or goal into it before use. Intention setting is considered a key step in activating a crystal's potential, as it aligns the stone's energetic properties with the user's personal goals. The specificity and emotional clarity of the intention is said to determine the effectiveness of this practice.

A qualitative scale developed by German mineralogist Friedrich Mohs in 1812 to measure the scratch resistance of minerals relative to one another. The scale runs from 1 (talc, softest) to 10 (diamond, hardest). Most wearable crystals fall between 5 and 8. Mohs hardness is important for crystal care: softer stones (below 6) are more vulnerable to scratching and should not be cleaned with abrasives or stored loose with harder stones.

The classification of a mineral based on the symmetry of its atomic lattice. There are seven crystal systems: cubic (isometric), tetragonal, orthorhombic, hexagonal, trigonal, monoclinic, and triclinic. The crystal system determines a stone's physical shape, optical properties, and cleavage patterns. For example, quartz belongs to the trigonal system, while pyrite belongs to the cubic system.

The geological process by which crystals grow over millions of years as minerals cool or precipitate from solution. Formation conditions — temperature, pressure, mineral availability, and time — determine a crystal's colour, clarity, size, and habit. Amethyst, for example, forms inside volcanic rock cavities called geodes when silica-rich water containing iron deposits cools slowly.

One of the most abundant minerals on Earth, quartz (SiO₂) forms the basis for many popular healing crystals. Pure quartz is colourless (Clear Quartz), but trace elements and irradiation produce a wide variety of colours: iron creates amethyst (purple) and citrine (yellow), while titanium and manganese contribute to rose quartz's pink hue. All quartz varieties share a Mohs hardness of 7 and a trigonal crystal structure.

A material enclosed within a crystal during its formation — such as gas bubbles, liquid, other minerals, or structural fractures. Inclusions are important in gemology for identifying natural stones (synthetics are often inclusion-free) and for defining character in crystals like rutilated quartz (with needle-like rutile inclusions) or garden quartz (with chlorite inclusions that create landscape-like patterns).

An optical phenomenon in which a polished gemstone displays a luminous band of light resembling a cat's eye, caused by parallel fibrous or needle-like inclusions within the stone. Tiger's Eye is the most widely known chatoyant crystal — the silky, golden shimmer that moves as the stone is tilted is caused by crocidolite fibres pseudomorphed by quartz.

A floating, billowing glow visible beneath the surface of moonstone, caused by light scattering between alternating layers of orthoclase and albite feldspar. The effect appears to move as the viewing angle changes and is the defining optical property of moonstone. The quality and colour of adularescence (from silvery-white to blue) are key value factors in moonstone grading.

Natural crystals are formed through geological processes over millions of years. Synthetic (lab-grown) crystals have the same chemical composition and crystal structure as natural stones but are produced in a laboratory within weeks or months. Treated stones are natural crystals that have been enhanced through heat, irradiation, or chemical processes to alter colour or clarity. At Arcane Pavilion, we carry only natural, untreated stones unless clearly labelled otherwise.

A violet variety of quartz coloured by iron impurities and natural irradiation. Mohs hardness: 7. Primary sources: China (Yunnan), Brazil, Uruguay, Zambia. In crystal healing, amethyst is associated with the crown and third eye chakras, and is used for mental clarity, stress relief, and sleep support. In Five Element terms, it resonates with Water and Metal energies.

A pale pink variety of quartz, coloured by trace amounts of titanium, iron, or manganese, or by microscopic fibres of a borosilicate mineral. Mohs hardness: 7. Primary sources: China (Jiangxi), Brazil, Madagascar. Associated with the heart chakra and unconditional love — including self-love, compassion, and emotional healing. In Five Element terms, it resonates with Fire and Earth energies.

A yellow to orange variety of quartz coloured by iron. Much commercial citrine is heat-treated amethyst. Natural citrine is rarer and paler. Mohs hardness: 7. Primary sources: China, Brazil, Spain. Known as the "merchant's stone" for its association with abundance and prosperity. In Five Element terms, it resonates with Earth and Fire energies.

A boron silicate mineral in the tourmaline group (schorl). Mohs hardness: 7–7.5. Primary sources: Brazil, China, Pakistan. Black tourmaline is one of the most widely used protective crystals, believed to create an energetic shield against negative influences. In Five Element terms, it resonates strongly with Water energy.

Pure silicon dioxide (SiO₂) without trace element colouration. Mohs hardness: 7. Considered the "master healer" in crystal healing due to its ability to amplify the properties of other crystals and the user's intentions. Exhibits the piezoelectric effect. In Five Element terms, it resonates with Metal energy and is considered a versatile amplifier for all elements.

A naturally occurring volcanic glass formed from rapidly cooling lava, not a true mineral (no crystalline structure). Mohs hardness: 5–5.5. Primary sources: Mexico, USA (Oregon), Iceland. Black obsidian is considered a deeply protective stone that reveals hidden truths and shields against psychic attack. Handle with care — it is brittle. In Five Element terms, it resonates with Water energy.

A term covering two distinct minerals: nephrite (a calcium magnesium silicate) and jadeite (a sodium aluminium silicate). Nephrite is softer (Mohs 6–6.5) and more common; jadeite is rarer and harder (Mohs 6.5–7). China's finest nephrite comes from Hetian (Khotan), Xinjiang. In Chinese culture, jade carries profound significance — representing virtue, protection, and longevity. It resonates with Wood and Earth energies.