Frequently asked questions

• Is gabbro the same thing as Mystic Merlinite?

  Mystic Merlinite is a trade name used in the bead market for a specific variety of gabbro mined in Madagascar — the material with the mottled black, gray, and cream patterning from intergrown plagioclase feldspar and dark pyroxene/magnetite. Geologically it's gabbro (or in some cases a related rock called indigo gabbro). The trade name and the mineralogical name describe the same beads. If you're matching a customer's request for Mystic Merlinite, gabbro strands from Madagascar are the same material under a different label.
• What does gabbro look like, and how does it pattern bead-to-bead?

  Gabbro is an intrusive igneous rock — basically the slow-cooled, coarser-grained cousin of basalt. Expect a mottled or marbled appearance: black to charcoal pyroxene and magnetite domains against lighter gray or cream plagioclase feldspar. Pattern varies bead to bead and strand to strand because it's a natural composite rock, not a uniform mineral. Some beads will read mostly dark, others will show heavier light banding or speckle. Plan designs around that variability rather than expecting matched beads — pairing strands for symmetrical work usually means hand-selecting at the bench.
• Is gabbro typically treated or dyed?

  Gabbro is generally sold natural — the dark/light contrast comes from the rock's mineralogy, not from dye or heat. The bead trade doesn't have a strong incentive to treat it because the natural patterning is the appeal. That said, treatment policies vary by supplier and lot, so any treatment should be disclosed; ask before buying if it isn't specified. If a strand looks unusually uniform black or shows color bleeding on a wet cloth, that's worth questioning before stringing.
• How durable is gabbro for daily-wear jewelry?

  Gabbro sits at Mohs 6–6.5, which is durable enough for bracelets, necklaces, and earrings in regular rotation. It's harder than most household dust, so it resists casual scratching, but it's softer than quartz — avoid storing it loose with agate, jasper, or quartz beads that can scuff the polish. For rings or cuffs that take impact, a bezel or protected setting helps. Clean with mild soap and a soft cloth; skip ultrasonic cleaners and harsh solvents, since gabbro is a composite rock and aggressive cleaning can attack grain boundaries between minerals.
• What does gabbro pair well with in designs?

  Gabbro's neutral black-gray-cream palette is one of the easiest backgrounds in the bead drawer. It reads well against warm metals (brass, bronze, gold-fill) for contrast or against oxidized silver for a moodier look. Color pairings that work: turquoise or amazonite for a strong cool-toned pop, carnelian or red jasper for warm contrast, labradorite or larvikite for a tonal dark-on-dark stack. The 6mm and 8mm rounds are workable bracelet sizes; 10mm rounds suit statement necklaces and men's bracelet work where the patterning has room to read.