Black Tourmaline Rough Stone
Black Tourmaline Rough Stone
Black Tourmaline Rough Stone
Black Tourmaline Rough Stone
Black Tourmaline Rough Stone
Black Tourmaline Rough Stone

Black Tourmaline Rough Stone

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Regular price$16.99
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🚚 Shipping $7.00 • Free over $100.00

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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).

Crystal size reference chart

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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This black tourmaline rough stone brings deep black tones, lengthwise ridges, and irregular broken surfaces to a mineral collection. The photographs show both compact chunks and elongated pieces, with light catching the ridged faces. Choose a listed weight range for a textured display or a symbolic focus in your intention space.

Product Highlights

  • Material: Black tourmaline.
  • Form: Rough stone with irregular contours and visibly ridged surfaces.
  • Appearance: Deep black tones with a mix of reflective faces and uneven ends.
  • Weight choices:  40–60 g, 70–100 g, 100–120 g, 130–160 g, 170–250 g, 320–395 g, 400–495 g, 500–595 g, and 600–695 g. The selector also lists a separate 260–310 option.
  • Chakra: Traditionally associated with the Root Chakra.
  • Explore: Browse Black Tourmaline Crystals and Raw Crystals & Rough Stones.

Chakra Connection

In contemporary crystal traditions, black tourmaline is associated with grounding, steadiness, and symbolic protection. Use it as a reminder to pause and reconnect with a personal intention for clear boundaries or presence. Its Root Chakra association offers a focus for reflection rather than a promise of physical protection or an ability to block electromagnetic fields.

How to Use

  • Place it on a stable, softly lined tray as a mineral display.
  • Keep it beside a written intention for steadiness or personal boundaries.
  • Observe the lengthwise ridges under soft light when exploring crystal forms.
  • Include it in a meditation space without gripping uneven or sharp edges.

Crystal Care

Remove dust gently with a soft brush or dry cloth. Avoid prolonged soaking, saltwater, acids, steam, and ultrasonic cleaning. Rough tourmaline can chip or shed small fragments, so handle carefully and protect it from drops. Store separately in a padded container, and keep small pieces away from children and pets.

FAQs

Is this polished tourmaline?

No. The photographs show rough pieces with lengthwise ridges, irregular surfaces, and broken ends rather than a smooth, rounded polish.

How should I choose a weight range?

Select the listed range that suits your collection or display. Weight does not specify length, width, or height, and rough pieces can have different proportions within a range.

What are the lines on the surface?

Tourmaline commonly develops lengthwise striations along its crystal faces. These ridges are a recognizable feature and can catch the light differently from the uneven ends.

What is a good way to display rough tourmaline?

Use a stable tray with a soft lining to protect both the piece and your furniture. Choose a position where it sits securely without balancing on a narrow edge.

What Is Black Tourmaline?

Tourmaline is a group of boron-bearing silicate minerals found in several colors. Black tourmaline is commonly associated with the iron-rich variety schorl. It often forms elongated crystals with lengthwise striations. Rough pieces preserve ridged faces and uneven surfaces, offering a different tactile and visual experience from polished stones or carvings.

Further Reading

Choose a listed weight range and give rough black tourmaline a thoughtful place in your mineral collection or reflective routine.

  • Free shipping on orders over $100.00 within the United States.
  • We strive to process and ship orders within 1-2 business days
  • Estimated delivery time is typically 12-16 days, though it may vary based on the destination

We appreciate your patience and understanding as we work diligently to deliver your order promptly and securely. For any further assistance or inquiries regarding shipping, please feel free to reach out our customer support team.

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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