About this item You will get one of the Nuumite Pyramid similar to the ones in the listing, the size and the color of the pyramid may slightly vary as well due to the fact that all minerals are different. (see photo, the photos are taken under bright light!) Average Pyramid Size: 23mm x 18mm / 0.9 x 0.7 Inches; Average Pyramid Weigh 14g / 0.5oz; The name Nuummite which means “derived from Nuuk” in Greenlandic was given to the amphibolitic rock type which was found by the geologist Peter W. Uitterdijk Appel in 1982, near Nuuk (Godthåb). Appel considered first the name nuukite, but renamed it to Nuummite, which in Greenlandish means “from Nuuk”. Nuummite is usually black in colour and opaque. It consists of two amphiboles, gedrite and anthophyllite, which form exsolution lamellae that give the rock its typical iridescence. Other common minerals in the rock are pyrite, pyrrhotite and chalcopyrite, which form shimmering yellow bands in polished specimens. Nuummite is light-gray to almost black with flecks of iridescent color ranging from yellow to golden, green to metallic blue, and reddish to violet. The flecks can range in size from a few millimetres long to several centimetres long. Formula: (Mg2)(Mg5)Si8O22(OH)2; Mohs Hardness: 5.5 to 6; Colour: Dark gray, brownish-black. Blue, golden yellow and reddish iridescence. (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.)
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