Quartz is the most common mineral on the face of the Earth. Chemically, quartz is a compound called silicon dioxide, SiO2. As a crystal, quartz is used as a semiprecious gemstone. Quartz is a relatively hard stone, 7 on the Mohs hardness scale. Quartz is one of the most abundant mineral crystals and can take [...]
Silver jewellery dresses up beautifully when you add natural gemstones. Amethyst has long been used as gemstones and ornamental stones. Jewelry designers and makers from all around the world have selected amethyst for making jewelry pieces like necklaces, bracelets, earrings, bangles and many other pieces of beautiful and affordable fashion jewelry. The hardness of this [...]
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