Frequently asked questions

• What is K2 stone, mineralogically?

  K2 — sometimes sold as K2 Jasper or K2 Granite — is a granite host rock (quartz, feldspar, and mica) speckled with small spheres of blue azurite. It's named for the Karakoram region near K2 in Pakistan, the only commercial source. The white-to-grey granite base provides the matrix Mohs hardness around 6, while the distinctive blue dots are azurite, a softer copper carbonate (Mohs 3.5–4). It's a composite rock, not a single mineral, which is why care and durability behave differently across the bead's surface.
• Is K2 treated or dyed?

  K2 in the trade is typically natural — the blue spots are azurite, not dye. The granite matrix takes a good polish on its own, and the contrast between white feldspar and blue azurite is what gives the stone its visual signature. Treatment status should be disclosed; ask before buying if it isn't specified. If you ever see K2 with unnaturally saturated or uniform blue dots, that's a flag — natural azurite spheres vary in size, spacing, and intensity across a strand.
• How should I care for K2 beads in finished jewelry?

  Care to the softer component, not the harder one. The granite matrix is durable enough for most jewelry, but the azurite spots are Mohs 3.5–4 and reactive to acids, ammonia, prolonged moisture, and heat. Clean with mild soap and a soft cloth — skip ultrasonic and steam cleaners, which can loosen azurite from the matrix or dull its surface. Keep finished pieces away from perfume, hairspray, and chlorinated water. Store separately from harder stones to prevent the azurite spots from getting scratched.
• What jewelry projects suit K2 best?

  K2 reads as a neutral with blue accents, so it bridges earthy and cool palettes well. The 8–12mm rounds Dakota stocks work for statement necklaces, beaded bracelets, and mala-style strands where the speckled pattern can be appreciated at scale. Pebble and nugget cuts add organic texture for designer-strung pieces. It pairs naturally with sterling silver, oxidized metals, lapis, sodalite, white howlite, labradorite, and matte black onyx. Because the azurite is soft, reserve K2 for earrings, pendants, and necklaces over rings or high-wear bracelets.
• How is K2 different from lapis lazuli or azurite beads?

  All three contain blue copper or sulfur minerals, but they look and behave differently. Lapis lazuli is predominantly blue with pyrite flecks and white calcite veining — the blue is the matrix. Azurite beads are solid deep blue, often with malachite intergrowths, and are quite soft throughout. K2 is the opposite of lapis: a light granite matrix with discrete blue azurite dots scattered across it. If a strand is labeled K2 but shows continuous blue rather than spotted blue on white-grey, it's likely been mislabeled or is a different material entirely.