Yooperlite 2" Skull UV Reactive
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Size chart
Crystal Tower Size Guide
Please note: The measurements provided in our size guide are approximate and may vary slightly, as the towers can exhibit variations in height, width, and taper. These unique difference add to the beauty and character of each crystal tower.
| Height in inches (mm) | Weight (grams) |
| 1 in. (25.4 mm) | ~ 10-20 g |
| 2 in. (50.8 mm) | ~ 40-60 g |
| 3 in. (76.2 mm) | ~ 90-120 g |
| 4 in. (101.6 mm) | ~ 160-200 g |
| 5 in. (127 mm) | ~ 250-300 g |
| 6 in. (152.4 mm) | ~ 365-425 g |
| 7 in. (177.8 mm) | ~ 500-575 g |
| 8 in. (203.2 mm) | ~ 650-750 g |
| 9 in. (228.6 mm) | ~ 825-920 g |
| 10 in. (254 mm) | ~ 1,000-1,200 g |
| 11 in. (279.4 mm) | ~ 1,300-1,500 g |
| 12 in. (304.8 mm) | ~ 1,600-1,800 g |
| 13 in. (330.2 mm) | ~ 1,900-2,100 g |
| 14 in. (355.6 mm) | ~ 2,200-2,400 g |
| 15 in. (381 mm) | ~ 2,500-2,700 g |
| 16 in. (406.4 mm) | ~ 2,800-3,000 g |
Crystal Sphere Size Guide
This size guide is provided as a general approximation based on the type of crystal. Weight of the sphere may differ based on the density of the material. This size guide shows estimates up to our largest size, 10kg.
| Diameter in inches (mm) | Weight (grams) |
| 1 in. (25.4 mm) | ~ 100-150 |
| 2 in. (50.8 mm) | ~ 300-400 |
| 3 in. (76.2 mm) | ~ 600-800 |
| 4 in. (101.6 mm) | ~ 1000-1200 |
| 5 in. (127 mm) | ~ 1500-1800 |
| 6 in. (152.4 mm) | ~ 2200-2500 |
| 7 in. (177.8 mm) | ~ 3000-3500 |
| 8 in. (203.2 mm) | ~ 4000-4500 |
| 9 in. (228.6 mm) | ~ 5000-5500 |
| 10 in. (254 mm) | ~ 6000-6500 |
| 11 in. (279.4 mm) | ~7000-7500 |
| 12 in. (304.8 mm) | ~ 8000-8500 |
| 13 in. (330.2 mm) | ~ 9000-9500 |
| 14 in. (355.6 mm) | ~ 10000-10500 |
Crystal Pyramid Size Guide
This size guide is provided as a general approximation based on the type of crystal. Weight of the pyramid may differ based on the density of the material and angular cut of the slopes. This size guide shows estimates up to our largest size, 10kg.
| Size (in. & mm) | Weight (grams) |
| ~ 50 mm (2 in.) | ~ 100-200 |
| ~ 60 mm (2.4 in.) | ~ 300-400 |
| ~ 70 mm (2.8 in.) | ~ 500-600 |
| ~ 80 mm (3.1 in.) | ~ 700-800 |
| ~ 90-100 mm (3.5-3.9 in.) | ~ 900-1000 or 1kg |
| ~ 100-110 mm (3.9-4.3 in.) | 1kg-1.3kg |
| ~ 120-130 mm (4.7-5.1 in.) | 1.5-2kg |
| ~ 140-150 mm (5.5-5.9 in.) | 2.5-3kg |
| ~ 160-170 mm (6.3-6.7 in.) | 3.5-4kg |
| ~ 180-190 mm (7.1-7.5 in.) | 4.5-5kg |
Inches to Millimeters Size Guide
| Inches | Millimeters |
| 0.5 in. | 12.7 mm |
| 1 in. | 25.4 mm |
| 2 in. | 50.8 mm |
| 3 in. | 76.2 mm |
| 4 in. | 101.6 mm |
| 5 in. | 127 mm |
| 6 in. | 152.4 mm |
| 7 in. | 177.8 mm |
| 8 in. | 203.2 mm |
| 9 in. | 228.6 mm |
| 10 in. | 254 mm |
| 11 in. | 279.4 mm |
| 12 in. (1 ft) | 304.8 mm |
From the Great Lakes of Michigan, to the ancient lava flows of Hawaii, the Yooperlite 2" Skull will illuminate your next exploration adventure! Made from a rare glowstone that was discovered in Michigan's Upper Peninsula, this mesmerizing crystal will light up your world—and your Instagram—with its rare luminescence. Perfect for nature lovers, the Yooperlite skull reveals a captivating wonderland of color as it glows in the dark. Be sure to pack this prized gem for your next nighttime exploration!
