Kornerupine Quartz Crystal Singing Bowl | 9" F# Note | #1535

I am the stone that remembers pressure

🎵 Size: 9" | Note: F# | Cents: +0 | Frequency: 370 Hz | Tuning: A=440 Concert Pitch | Octave: 3 | A=432 Equivalent: F#+31 | Bowl #: 1535 ✨ Element: Kornerupine 💎 | Body Resonance: Torso, chest cavity, heart, lungs, solar plexus, diaphragm 🌬️ | Chakra Connections Western Diatonic: Higher Heart 💫

This Kornerupine crystal singing bowl sounds in F# at 370 Hz, resonating with the higher heart chakra and the torso—chest cavity, heart, lungs, and diaphragm. Kornerupine supports grounded transformation and the capacity to hold multiple perspectives simultaneously. When this rare metamorphic mineral meets F#'s energy of manifestation, the result is an instrument that helps bring vision into form while keeping both feet planted firmly on the earth.

BEST FOR

• Grounding anxiety and scattered nervous system energy
• Those navigating major life transitions or identity shifts
• Shadow work and integrating difficult emotions
• Executives and leaders centering before complex decisions
• Sound healers supporting clients through deep transformation
• Students seeking focus and mental clarity during intense study periods
• Anyone ready to look at themselves from new angles

ESSENCE

I am the stone that remembers pressure. When you have been through the fire—when life has asked you to become something you didn't know you could be—I meet you there. I do not rush. I do not promise easy answers. I offer what the earth offers: the quiet knowledge that transformation takes time, that what emerges from pressure carries its own strange beauty, and that you are allowed to contain multitudes.

THE ELEMENT

Kornerupine is a rare cyclosilicate mineral formed under extreme conditions—high-pressure, high-temperature metamorphism where continents collided and boron-rich fluids moved through fracturing rock. Its complex composition includes magnesium, iron, aluminum, silicon, and boron, elements that fused in environments most minerals cannot survive. First discovered in Greenland in 1884 and initially misidentified, Kornerupine spent a century being overlooked before gem-quality deposits emerged from Madagascar, Sri Lanka, and Tanzania.

What makes this mineral distinctive is its pleochroism—the ability to shift colors when viewed from different angles. Green becomes brown becomes yellow becomes blue, not from uncertainty but from containing multiple truths at once. This optical property has made Kornerupine a symbol in contemporary wellness practices for perspective-shifting, for the capacity to see oneself and one's circumstances from new vantage points.

When Kornerupine is infused into quartz crystal through Divine Bowls' proprietary process, its molecular structure integrates at the formation stage—not as a surface coating, but as part of what vibrates. The mineral's grounding signature weaves into every frequency the bowl produces. People often describe this bowl's tone as having unusual depth, a quality of weight and presence that feels different from clear quartz alone. The element's association with the root chakra for stability extends through the third eye for perceptual shifts, creating an instrument that anchors while it expands awareness.

THE FREQUENCY

This bowl sounds in F# at 370 Hz, resonating with the higher heart chakra in the Western diatonic system—the energy center bridging heart and throat, where personal truth meets compassionate expression. The F# frequency carries the energetic quality of manifestation: bringing vision into form, bridging intention and reality.

At 370 Hz, this frequency vibrates through your torso, chest cavity, heart, lungs, and diaphragm. When Kornerupine's transformative steadiness meets F#'s manifestation energy, something particular happens: the bowl supports bringing ideas into reality without losing your grounding. People often notice a sense of clarity in the chest, as if something that was held too tightly has been given permission to breathe.

THE TUNING

This bowl resonates at 370 Hz. Using A=440 as reference—the universal standard for modern instruments—it plays F#+0. (Using A=432 as reference, this same frequency is F#+31.)

This bowl is categorized as Concert Pitch because its frequency falls within ±10 cents of A=440. Like a piano tuned to concert pitch, this bowl will sound in tune when played alongside guitars, orchestras, keyboards, or any instrument using standard tuning. If you play with other musicians, use recorded music in your work, or want your bowl to blend seamlessly with other instruments, this compatibility makes integration effortless. Musicians and sound designers particularly value perfect-pitch bowls for their versatility.

(For fine adjustment, adding water to the bowl lowers the pitch slightly—a technique some use to dial in precise intervals when playing with other instruments.)

THE SIZE

At 9 inches, this bowl produces third-octave tones with long, sustained resonance—sound that continues to unfold and develop after the initial strike. The full, rich volume fills larger spaces without overwhelming them, making it equally suited for group sound baths, yoga studios, conference rooms, or living rooms where you want the sound to reach everyone present.

This size allows Kornerupine's patient, grounding quality to express with ceremonial depth. The lower-body resonance of a 9-inch bowl naturally anchors energy, while the third-octave F# moves through the torso and chest. The combination creates an experience of being held from below while something opens in the center—grounded expansion rather than unmoored floating.

WORKING WITH THIS BOWL

Reach for this bowl when you're navigating something difficult and need companionship rather than bypass. Before a challenging conversation. After receiving news that changes things. When you're studying for an exam that feels overwhelming and need to settle your nervous system enough to actually absorb information. When you're preparing for a presentation and want to feel grounded in your own authority. When a child is struggling with big emotions they can't name.

Begin simply: strike the bowl once and let the sound unfold completely before striking again. Notice how the tone develops over time—Kornerupine's pleochroic nature seems to express through sound that reveals different qualities as it sustains. Place your attention in your lower body first, feeling your connection to the ground. Then let awareness rise through your torso as the sound moves through you.

This bowl responds well to slow, deliberate playing. It doesn't want to be rushed. If you're using it to open a meeting or transition a classroom, a single strike followed by silence can be more powerful than continuous playing. Let the sound do its work. Let the silence that follows do its work too.

Each Divine Bowls singing bowl includes a pure quartz mallet wrapped in premium silicone for optimal resonance, plus a silicone O-ring for stable playing on hard surfaces. Every bowl is formed in a single seamless vessel from 99.995% pure quartz—no welds, no weak points—built to last lifetimes of use.

INVITATION

Some bowls arrive with fanfare. This one arrives with weight.

Kornerupine doesn't rush. It formed under conditions that would crush most minerals—continental collision, boron-rich fluids moving through fracturing rock, heat and pressure that lasted longer than human memory can hold. When you play this bowl, that patience is what sounds. The F# tone moves through your chest and settles somewhere below your ribs, not demanding attention but offering ground.

This is a bowl for the moments when you need to feel your own feet. Before the difficult conversation. After the news that changes things. The 5am kitchen when you're stealing quiet before anyone else wakes. The classroom transition when twenty-three nervous systems need somewhere to land. The boardroom, empty, before you walk in and become the person they expect you to be.