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Azurite crystallizes in the monoclinic system. [10] Large crystals are dark blue, often prismatic. [3] [4] [8] Azurite specimens can be massive to nodular or can occur as drusy crystals lining a cavity. [11] Azurite has a Mohs hardness of 3.5 to 4. The specific gravity of azurite is 3.7 to 3.9. Characteristic of a carbonate, specimens ...
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Epsilon Eridani has an estimated mass of 0.82 solar masses [10] [11] and a radius of 0.738 solar radii. [12] It shines with a luminosity of only 0.34 solar luminosities. [80] The estimated effective temperature is 5,084 K. [81] With a stellar classification of K2 V, it is the second-nearest K-type main-sequence star (after Alpha Centauri B). [9]
Vitamin may have a protective effect on bone mineral density and reduced risk of hip, vertebral and non-vertebral fractures. [11] These effects appear to be accentuated when combined with vitamin D and in the setting of osteoporosis. [1] Research suggests that vitamin K 2 (Menaquinone 7, MK-7]) may reduce the rate and severity of night time leg ...
High on K2: Seracs above the Bottleneck. The Bottleneck is a location along the South-East Spur (also known as Abruzzi Spur), the most-used route to the summit of K2, the second-highest mountain in the world, in the Karakoram, on the border of Pakistan and China.
Learn how to download and install or uninstall the Desktop Gold software and if your computer meets the system requirements.
The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows ("periods") and columns ("groups"). It is an icon of chemistry and is widely used in physics and other sciences.
The median weekly earnings of the nation's nearly 121 million full-time wage and salary workers were $1,165 in the third quarter of 2024, according to the U.S. Bureau of Labor Statistics. That ...