https://majescor.com/ Gemstones and minerals, explained clearly en https://majescor.com/birthstones-by-month/https://majescor.com/birthstones-by-month/Each month has at least one birthstone: garnet (January), amethyst (February), aquamarine (March), diamond (April), emerald (May), pearl or alexandrite. https://majescor.com/how-to-clean-gemstone-jewelry/https://majescor.com/how-to-clean-gemstone-jewelry/For most gemstone jewelry, soak the piece in warm water with a drop of mild dish soap for 5–10 minutes, brush gently behind the stone with a soft. https://majescor.com/how-to-identify-gemstones/https://majescor.com/how-to-identify-gemstones/Identify a gemstone by testing its physical properties and eliminating candidates: examine it under a 10x loupe for bubbles or natural inclusions,. https://majescor.com/mohs-hardness-scale/https://majescor.com/mohs-hardness-scale/The Mohs hardness scale is a 1-to-10 ranking of a mineral's resistance to scratching, created in 1812 by German mineralogist Friedrich Mohs.