Elongated Black Tourmaline Hunk (588g) with visible striations, offering powerful protective energy.
Elongated Black Tourmaline Hunk (588g) with striated columnar structure, powerful for energetic protection.
Elongated Black Tourmaline Hunk (588g) with striated, columnar structure, offering powerful protective energy.

Black Tourmaline Crystal Raw Hunk Elongated Specimen

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Size chart

Use this reference guide to convert between centimeters, millimeters, and inches when shopping for crystals. All Crystal Destiny product listings show measurements in millimeters (mm).

CM to MM to Inches Conversion Chart

Centimeters (cm) Millimeters (mm) Inches (in)
0.5 cm 5 mm 0.2 in
1 cm 10 mm 0.39 in
1.5 cm 15 mm 0.59 in
2 cm 20 mm 0.79 in
2.5 cm 25 mm 0.98 in
3 cm 30 mm 1.18 in
3.5 cm 35 mm 1.38 in
4 cm 40 mm 1.57 in
4.5 cm 45 mm 1.77 in
5 cm 50 mm 1.97 in
5.5 cm 55 mm 2.17 in
6 cm 60 mm 2.36 in
6.5 cm 65 mm 2.56 in
7 cm 70 mm 2.76 in
7.5 cm 75 mm 2.95 in
8 cm 80 mm 3.15 in
8.5 cm 85 mm 3.35 in
9 cm 90 mm 3.54 in
9.5 cm 95 mm 3.74 in
10 cm 100 mm 3.94 in
11 cm 110 mm 4.33 in
12 cm 120 mm 4.72 in
13 cm 130 mm 5.12 in
14 cm 140 mm 5.51 in
15 cm 150 mm 5.91 in
16 cm 160 mm 6.30 in
17 cm 170 mm 6.69 in
18 cm 180 mm 7.09 in
19 cm 190 mm 7.48 in
20 cm 200 mm 7.87 in
25 cm 250 mm 9.84 in
30 cm 300 mm 11.81 in

Quick Reference

  • 1 cm = 10 mm = 0.394 inches
  • 1 inch = 25.4 mm = 2.54 cm
  • 1 mm = 0.1 cm = 0.039 inches

All Crystal Destiny product measurements are listed in millimeters (mm). Use this chart to convert to your preferred unit of measurement.

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The elongated form of this Black Tourmaline hunk gives it a directional quality that a more compact piece does not have. At 588g, it has real weight and presence, and the natural striated, columnar structure of the Tourmaline runs along its length in a way that makes the mineral's formation history visible. This is a piece that looks as powerful as it is.

Raw Black Tourmaline at this size is one of the most effective tools for creating a protective energetic boundary in a space. Place it near an entryway, on a windowsill, or at the edge of a desk and it works continuously, absorbing and transmuting negative energy without any additional effort. Measures 159mm long by 64mm wide by 38mm tall.

Product Highlights

  • Stone: Black Tourmaline (Schorl), a boron silicate mineral with characteristic striated, columnar raw structure
  • Form: Raw elongated hunk with natural striated surface running along its length
  • Dimensions: 159mm L x 64mm W x 38mm H
  • Chakra: Root Chakra for grounding, protection, and negative energy transmutation
  • Intentions: Protection, grounding, EMF shielding, space clearing, energetic boundary-setting
  • Mohs Hardness: 7 to 7.5
  • This product is an exact pick as pictured, one of a kind.
  • Powerful near an entryway, on a windowsill, desk, or as a grid anchor.

Chakra Connection

Black Tourmaline resonates with the Root Chakra, the energetic foundation associated with safety, grounding, stability, and the ability to feel secure and present in the physical world. It is one of the most effective stones for clearing the aura of accumulated negative energy and creating a protective energetic boundary around a person or space. The elongated form of this piece gives its energy a directional quality, making it particularly effective when placed with intention along a threshold, doorway, or boundary.

How to Use

  • Entryway protection: Place near the front door, on a windowsill, or along the edges of a room to create a directional protective boundary that filters energy entering the space.
  • Workspace: Keep on your desk to absorb EMF from electronics and environmental stress throughout the day. The elongated form can be oriented toward the source of stress.
  • Meditation: Hold during grounding meditation for Root Chakra activation and energetic boundary-setting.
  • Crystal grids: Place at the base or corners of a protection or grounding grid as an anchor stone.
  • Pairing for space clearing: Combine with Selenite for a complete protection and space clearing setup.
  • Pairing for amplification: Add Clear Quartz to amplify the Tourmaline's protective properties throughout the space.

Crystal Care

Black Tourmaline is water-safe for brief rinsing. Avoid prolonged soaking. Cleanse regularly by smudging with sage or palo santo, or use sound cleansing with a singing bowl. Black Tourmaline is an active absorber of negative energy and benefits from frequent cleansing, particularly if used in high-traffic or high-stress environments. Cleanse monthly at minimum, or more frequently if the piece is near electronics or handled regularly. Store away from softer stones that could be scratched by its hardness.

Frequently Asked Questions

How often should Black Tourmaline be cleansed?

Black Tourmaline is an active absorber of negative energy, which means it accumulates energy more quickly than many other stones. Cleanse monthly at minimum, or more frequently if the piece is used in a high-stress environment, near electronics, or handled regularly. Smudging with sage or palo santo is the most effective method for raw specimens. See our complete guide: How to Cleanse and Charge Your Crystals.

Does the elongated shape make a difference energetically?

Many practitioners find that elongated or columnar raw Tourmaline pieces have a more directional energy than compact chunks, making them particularly effective when placed along a threshold, doorway, or boundary with intention. The natural columnar structure of Tourmaline already has an inherent directionality, and an elongated piece amplifies this quality.

What crystals pair well with Black Tourmaline?

Selenite pairs powerfully for space clearing alongside Tourmaline's protection. Amethyst adds spiritual protection and calm. Clear Quartz amplifies its protective properties. For a complete protection and grounding setup, combine with Obsidian for deep energetic clearing and Hematite for physical grounding. See our full Crystal Pairing Guide for more ideas.

Is this a good gift?

A raw Black Tourmaline hunk is one of the most universally practical crystal gifts. Its protective energy is appropriate for anyone, its raw elongated form is visually distinctive, and its weight makes it feel genuinely substantial. Excellent for anyone moving into a new home, starting a new job, or going through a period of stress or transition. See our guide on how to display crystals at home for placement ideas.

What Is Black Tourmaline?

Black Tourmaline, also known as Schorl, is a boron silicate mineral with a complex chemical composition that includes iron, which gives it its characteristic deep black color. It forms in granitic pegmatites and metamorphic rocks and is found worldwide, with notable deposits in Brazil, Africa, and the United States. It has a Mohs hardness of 7 to 7.5 and is recognized by its characteristic striated, columnar crystal structure. In crystal work, it is one of the most consistently recommended stones for protection, grounding, and the transmutation of negative energy, and is considered one of the premier protective minerals available. Learn more in our full guide: Black Tourmaline: Protection, Grounding & EMF.

Further Reading

Browse our full Black Tourmaline collection, explore more raw crystals, or discover our protection crystals and grounding stones to build out your practice.

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  • Shipping times may vary depending on the product
  • We strive to process and ship orders within 2-3 business days
  • Estimated delivery time is typically Within 7 days, though it may vary based on the destination
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Each crystal is natural and unique, with no two crystals being identical. Some crystal may contain naturally formed cracks within itself, not caused by other objects.

Please note that size, color, and patterns may vary due to the different batches of crystals and its natural inclusions, or hand measurements.

You can always reference the Size Chart on every product page to translate grams to pounds and ounces, and, millimeters and centimeters to inches.

Thank you for understanding and enjoying all the wonders of crystals.

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