Why Tanzanite Needs Extra TLC
Tanzanite ranks 6.5 on the Mohs hardness scale — softer than diamonds (10), sapphires (9), and even quartz (7). That single fact changes everything about how you care for it.
Ignore it, and you risk scratches, chips, or a dull stone. Follow these rules, and your tanzanite stays stunning for decades.
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The Do's
Clean gently at home:
- Use lukewarm water + a drop of mild dish soap
- Soft-bristle toothbrush (baby brush works perfectly)
- Rinse thoroughly, pat dry with a lint-free cloth
- Takes 2 minutes. Do it monthly.
Store it separately:
Tanzanite scratches easily — and harder gemstones in the same drawer will do the damage. Use individual soft pouches or a lined jewellery box with compartments.
Remove before:
- Gym workouts (sweat + impact = bad combo)
- Cleaning with chemicals (bleach destroys colour)
- Swimming (chlorine is harsh on the stone and setting)
- Gardening or manual work
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The Don'ts
Never use ultrasonic cleaners. The vibrations can fracture tanzanite — especially if it has any inclusions. No exceptions.
Never use steam cleaners. Heat exposure can permanently alter tanzanite's colour. The trichroic nature of the stone makes it heat-sensitive.
Avoid harsh chemicals. Acetone (nail polish remover), bleach, and ammonia-based cleaners will damage both the stone and any metal setting.
Don't wear it daily if you're hard on jewellery. Tanzanite is best suited for occasional or special-occasion wear rather than everyday rough handling.
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Professional Care
- Annual check-up: Have a jeweller inspect prongs and settings once a year. Loose prongs = lost stone.
- Professional cleaning: Once a year, get it professionally cleaned with the right equipment.
- Re-polishing: If surface scratches appear over time, a jeweller can re-polish tanzanite — restoring its original brilliance.
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Quick Reference: Tanzanite Care Cheat Sheet
| Do | Don't |
|---|---|
| Soft cloth + mild soap | Ultrasonic cleaner |
| Separate storage | Store with harder gems |
| Remove before exercise | Wear during swimming |
| Annual prong check | Use steam or heat |
| Occasional wear | Everyday rough use |
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The Bottom Line
Tanzanite is a once-in-a-lifetime gem from a single source on Earth. Treat it with the care it deserves — gentle cleaning, smart storage, and a jeweller who knows what they're doing — and it'll keep turning heads for generations.