An intriguing cabochon of Rainbow Moonstone, from India. Cut from hard-to-find rough, Romans named it so because they thought it was made of moonlight. It's actually orthoclase, like its closest relative, labradorite.
Watermelon tourmaline. Tourmaline is a crystal boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. Tourmaline is classified as a semi-precious stone and the gemstone comes in a wide variety of colors. The name comes from the Sinhalese word "Thuramali" or "Thoramalli", derived from different gemstones found in Sri Lanka. [Wikipedia]
Although this gemstone came into being millions of years ago, it has only been known by the name of morganite since 1911, before that the gemmological world simply viewed the 'pink beryl' as a variety of beryl, not as a gemstone in its own right. mainly comes from deposits in Brazil, Madagascar, Afghanistan and California. Its good hardness of 7.5 to 8 on the Mohs scale