Frequently asked questions

• What actually is pietersite, and how does it differ from tiger eye?

  Pietersite is a brecciated chatoyant quartz — a tectonic aggregate of hawk's eye (blue) and tiger's eye (gold/brown) fibers that were broken up, reoriented, and recemented in a silica matrix. That history is why pietersite shows swirling, fractured patches of chatoyancy moving in multiple directions on a single bead, rather than tiger eye's single parallel band of silk. Color typically runs through blue-grey, gold, red-brown, and black within one strand. Mineralogically it sits in the same quartz family (Mohs 6.5–7), but the brecciated structure and multidirectional chatoyancy are what designers are paying for.
• Does origin (Namibia vs. China) matter when I'm picking a strand?

  Both are accepted as pietersite in the trade. Namibian material (the original 1962 find) tends toward stronger blue and red-brown coloration with dramatic chatoyancy and is increasingly scarce. Chinese pietersite from Henan, discovered in the 1990s, leans more gold, red, and black with tighter brecciation. Neither is a substitute for the other — they're distinct looks.
• Is pietersite treated or dyed?

  Pietersite is typically sold untreated — the color and chatoyancy are natural products of the crocidolite fibers and iron staining in the matrix. Heat or dye treatment isn't standard for this material because the appeal is the natural color play across the breccia. If you see uniform color across a whole strand with no variation in chatoyancy direction, that's a flag — real pietersite varies bead to bead because the brecciation is irregular.
• What does pietersite work best for in finished jewelry?

  At Mohs 6.5–7, pietersite handles bracelets, necklaces, and earrings well, and is durable enough for occasional-wear rings if bezel-set. The chatoyancy is the design feature, so cuts that catch light — smooth rounds, cabochons, table-cut cubes, faceted rounds — show the silk best. It pairs naturally with warm metals (brass, bronze, yellow gold, copper) that pick up the gold and red tones, and with matte black or oxidized silver for contrast. Mixing it with plain tiger eye or hawk's eye in the same piece can muddy the effect — pietersite usually carries a design on its own.
• How do I care for pietersite so the chatoyancy stays sharp?

  Clean with mild soap, lukewarm water, and a soft cloth. Ultrasonic cleaners are generally safe given the hardness, but avoid prolonged heat or steam — the crocidolite fibers responsible for chatoyancy can dull or shift in appearance with sustained high temperatures. Keep it away from harsh solvents, chlorine, and abrasive polishing compounds. Store separately from harder stones (topaz, sapphire, quartz crystals) to avoid surface scratches that would scatter the silk. A quick wipe after wear to remove skin oils keeps the polished surface reading clean.