Pietersite Mineral Slab

Storm-Like Blue-Black Swirls. Rare Namibian Pietersite. A Large-Format Centerpiece for Serious Collectors.

Few minerals command attention like Pietersite. Known as the “Tempest Stone” for its dramatic storm-like swirls of deep blue-black against a natural stone matrix, this large slab from Ouitja, Namibia is a rare and striking centerpiece for any serious mineral collection.

Pietersite is a relatively rare fibrous mineral found in only a handful of locations worldwide, making each piece a genuinely unique find. Whether displayed on a shelf, used as a focal point in a crystal collection, or gifted to a geology enthusiast, this bold specimen is sure to impress.

• Mineral: Pietersite
• Nickname: “Tempest Stone”
• Origin: Ouitja, Namibia
• Size: 6.5 × 4.7 inches
• Weight: 197 grams
• Color: Deep blue-black with dramatic swirling patterns
• Condition: Natural formation with rough edges; vivid coloration

Note: Some photos were taken while wet to bring out the stone’s full natural color and detail.