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Sapphirine is a rare mineral, a silicate of magnesium and aluminium, with the chemical formula (Mg,Al) 8 (Al,Si) 6 O 20 (with iron as a major impurity). Named for its sapphire-like colour, sapphirine is primarily of interest to researchers and collectors: well-formed crystals are treasured and occasionally cut into gemstones.
Africallagma sapphirinum, the sapphire bluet, is a species of damselfly in the family Coenagrionidae. It is endemic to South Africa, where it is locally common. [2] This species is found in grassland, where its natural habitat is ponds and lakes with floating aquatic plants. [2] This bluet is 24–28 mm long, with a wingspan of 26–33 mm.
This is a list of prices of chemical elements. Listed here are mainly average market prices for bulk trade of commodities. Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison.
Probable reserves are 21.2 million cubic meters of ore at an ore grade of 1.69 carats (338 mg) per 100 cubic meters (3.38 mg/m 3). There is a waste rock overburden of about 33 million cubic meters. Big Hole
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Boeing’s very bad year ended tragically on Sunday, as a 737 flown by Korean discount carrier Jeju Air crashed, killing 179 passengers and crew on board.
Stugeta bowkeri, the Bowker's sapphire, Bowker's marbled sapphire or Bowker's tailed blue, is a butterfly of the family Lycaenidae. It is found in most of southern Africa. The wingspan is 26–32 mm for males and 29–41 mm for females. Adults are on wing from September to May, with peaks in October and March. [2]
The Logan Sapphire brooch, National Museum of Natural History, Washington, D.C. The Logan Sapphire is a 422.98-carat (84.596 g) sapphire from Sri Lanka.One of the largest blue faceted sapphires in the world, it was owned by Victor Sassoon and then purchased by M. Robert Guggenheim as a gift for his wife, Rebecca Pollard Guggenheim, who donated the sapphire to the Smithsonian Institution in 1960.