Caring for artificial white turquoise drop earrings involves protecting the porous material from chemicals, moisture, and extreme temperatures. The primary care method is to gently wipe them with a soft, dry or slightly damp cloth and store them properly.

Everyday Wear and Precautions
• "Last On, First Off" Rule: Put your earrings on after applying all cosmetics, perfumes, and hairsprays to avoid chemical exposure. Remove them before using hand sanitizer or washing your hands.
• Avoid Moisture: Remove the earrings before showering, swimming, or engaging in activities that cause excessive sweating. Prolonged exposure to water and chlorine can cause discoloration and damage.
• Prevent Physical Damage: Turquoise ranks low on the Mohs hardness scale (5 to 6), making it susceptible to scratches and chips. Avoid wearing the earrings during strenuous activities, household chores, or gardening, and be mindful not to drop or knock them against hard surfaces.
• Steer Clear of Extreme Conditions: High heat or direct, prolonged sunlight can fade the color and cause the stone to become dry and brittle. Store them in a place with a stable, room temperature environment.

Cleaning
• Gentle Wiping: After each wear, gently wipe the earrings with a clean, soft, lint-free cloth (like microfiber or a jewelry polishing cloth) to remove body oils and dirt.
• Mild Cleaning (if needed): For a deeper clean, a soft cloth dampened with lukewarm water and a tiny amount of mild, non-detergent soap can be used.
• Thorough Drying: After any damp cleaning, immediately dry the earrings thoroughly with a clean, soft, dry cloth. Do not let water sit on the stone.
• Avoid Specific Cleaners: Never use commercial liquid jewelry cleaners, harsh chemicals (like ammonia or bleach), or abrasive materials. The vibrations and heat from ultrasonic or steam cleaners can also permanently damage the stone.

Storage
• Separate Storage: Store each earring in its own soft cloth pouch or a separate compartment within a jewelry box to prevent them from rubbing against harder materials and causing scratches.
• Cool, Dry Place: Keep your jewelry in a cool, dry place away from direct sunlight and humidity, such as a drawer or cabinet.
• Avoid Airtight Plastic (for natural turquoise): While some sources suggest plastic bags for costume metal components to prevent tarnish, some experts advise against airtight containers for natural turquoise as the stone needs a stable environment (silica gel packets can help control moisture without making it too dry). Given your item is artificial, a sealed bag with an anti-tarnish strip is generally safe for the metal components.