Green Nephrite "Inca Jade" Cabochon Rare Stone Rock Cab Polished Gemstone Mineral Stone Pebble from Peru - 5 PCS

All our minerals and crystals are carefully measured with digital measuring instruments that provide the high accuracy of numbers/values!

• You will get 5 pcs of the Nephrite Cabochons similar to the one in the listing, the size and the color of the cabochon may slightly vary as well due to the fact that all minerals are different. (Red Jasper Bowl NOT included!) Approximately Size: 10-30mm / 7/16-1 3/16 Inches; Approximately Weight: 15-40gr / 0.5-1.4oz;
• Nephrite is one of two gem materials, nephrite and jadeite, that are known as jade. They have a somewhat similar colour range and a tough, microcrystalline structure. Both are extremely tough and resistant to fracture such that they have been used been used as carving materials throughout history. Nephrite is a magnesium iron calcium silicate, with iron as the colouring agent. A high iron content causes deep green to black colours while a low iron content results in lighter shades.
• One of the most important sources for fine nephrite jade is New Zealand where it is commonly found in serpentine rocks, and as rounded pebbles along riverbanks and seashores. Other notable nephrite jade deposits can be found in Australia, Brazil, China, Canada, Russia, Peru, Zimbabwe and the United States. Nephrite can contain minor to trace amounts of diopside, grossularitic garnet, magnetite, chromite, graphite, apatite, rutile, pyrite, datolite, vesuvianite, prehnite and other.
• Chemical Formula: Ca2(Mg,Fe2+)5[OHlSi4O11]2; Hardness: 6 to 6.5 on the Mohs scale; Color: Light to dark-green, black, yellow to brown, pink, white and other colors.
• (The above information is provided solely for informational purpose. Kindly note that all stones are offered for decorative purposes only. Please, handle your stones with great care, do not grind or crumble them, do not dip or add them into your food or drink, do not use any parts of them in any elixirs, potions, lotions etc. Always make sure you wash your hands before and after working with your crystals.)