Green malachite is a striking and popular gemstone, but its relatively soft nature and sensitivity to certain elements mean it requires special care. Malachite registers as 3.5 to 4 on the Mohs scale of hardness, making it prone to scratching and damage from impacts.

Handling and wearing
Handle gently:
• Avoid dropping or knocking your malachite jewelry, as it can chip or break.
Remove during activities:
• Take off your malachite jewelry before engaging in activities that might expose it to impacts, moisture, or chemicals, such as exercising, cleaning, gardening, swimming, or showering. Prolonged exposure to moisture can damage the stone.
Protect from chemicals:
• Malachite is sensitive to acids and chemicals, which can react with its copper content and cause damage or discoloration. Avoid contact with lotions, perfumes, hairsprays, household cleaners, and even acidic substances like lemon juice or vinegar.
Put it on last:
• Apply cosmetics and hair products before putting on your malachite jewelry to minimize its exposure to chemicals.
Avoid heat and direct sunlight:
• Malachite is sensitive to heat, and prolonged exposure to direct sunlight can fade its vibrant green color or even turn it black. Keep it away from heat sources and store it in a cool, shaded place.

Cleaning
Gentle cleaning:
• Wipe your malachite jewelry with a soft, lint-free cloth after each wearing to remove dust and oils.
Mild soap and water (if necessary):
• If the stone needs a deeper cleaning, use a soft, damp cloth with a few drops of mild soap and lukewarm water. Avoid soaking malachite or using commercial jewelry cleaners or ultrasonic cleaners, notes Parkford Jewelry and. Prolonged water exposure or harsh cleaners can damage the stone, and according to Kaelin Design, malachite is "frightfully unstable" and can be etched by acids.
Thorough drying:
• After cleaning, rinse the jewelry well (if appropriate for the setting) and immediately dry it with a soft cloth. Avoid air drying, as it can leave water spots.

Storage
Separate and padded storage:
• Store malachite jewelry separately in a soft pouch or a lined jewelry box to prevent scratches from other, harder gemstones or other jewelry pieces.
Cool and dry environment:
• Choose a cool, dry place away from direct sunlight and humidity. Humidity can cause the protective surface of malachite to whiten.
Consider size and protection:
• Choose a box or pouch that accommodates the size of the jewelry piece to avoid crowding and damage.

Maintenance
Regular inspections:
• Check your jewelry regularly for signs of wear and tear, such as loose stones or potential damage to the setting or stringing material.
Prompt repairs:
• Address any damage quickly by a professional jeweler, as malachite is brittle and may require specialized repair techniques.

By following these guidelines, you can protect your green malachite jewelry and enjoy its natural beauty for a long time.