Rainbow hematite, a popular gemstone with an iridescent sheen, requires specific care to maintain its unique appearance. It is important to note that rainbow hematite is often coated, and this coating can be delicate and prone to damage.

Cleaning
Gentle Cleaning:
• Use a soft, damp cloth to gently wipe away any dirt, oils, or residue from your rainbow hematite jewelry.
Avoid Harsh Chemicals:
• Do not use abrasive cleaners or harsh chemicals like bleach, ammonia, or vinegar, as they can strip away the rainbow coating and irreversibly alter its appearance.
Mild Soap Solution:
• For tougher stains or to ensure a thorough cleaning, you can use a solution of mild soap (like dish soap) and warm water. Apply with a soft cloth and rinse thoroughly to remove all soap residue, then pat dry with a soft cloth.
Avoid Prolonged Water Exposure:
• Rainbow hematite's coating can degrade with prolonged water exposure, so it's important to keep your jewelry as dry as possible.
Avoid Ultrasonic and Steam Cleaners:
• These methods can be too aggressive and may damage the delicate coating or the hematite itself.

Protecting and storing
Handle with Care:
• Rainbow hematite is considered moderately hard (5.5-6.5 on the Mohs scale), but its coating can be fragile and prone to scratching or peeling. Avoid dropping your jewelry or subjecting it to harsh impacts.
Remove Before Activities:
• Always remove your rainbow hematite jewelry before showering, bathing, swimming, exercising, or engaging in any activities that could expose it to moisture, chemicals, or hard impacts.
Keep Away from Chemicals:
• Apply perfumes, lotions, hairsprays, and other beauty products before putting on your jewelry to prevent damage from chemicals.
Avoid Heat:
• The coating on rainbow hematite is susceptible to heat damage, which can cause discoloration or peeling. Avoid leaving your jewelry near heat sources, in direct sunlight, or near open flames.
Dust-Proof Storage:
• Store your jewelry in a soft pouch or a padded jewelry box to protect it from dust, which can contain quartz particles that might scratch the surface, and prevent it from scratching against other objects.
Separate Storage:
• Store each piece of rainbow hematite jewelry separately to prevent scratching and tangling, according to Hannoush Jewelers NY.

Special precautions for rings and bracelets
Hematite rings require special care due to their natural softness, making them prone to cracking, shattering, and scratching, according to Ouros Jewels. It is advisable to choose protective settings for rings to shield them from bumps and scratches.

Following these care instructions will help preserve the vibrant colors and iridescent shine of your rainbow hematite jewelry for years to come.