Kernite, also known as rasorite and hydrated sodium borate hydroxide (Na₂B₄O₇·4H₂O), is a colorless to white crystalline mineral that was formerly the chief source of borax. It is also the source of various boron compounds. General Name, Symbol, Number sodium, Na, 11 Series alkali metal Group, Period, Block 1 (IA), 3, s Density, Hardness 968 kg/m3, 0. ... General Name, Symbol, Number Boron, B, 5 Series Metalloids Group, Period, Block 13 (IIIA), 2, p Density, Hardness 2460 kg/m3, 9. ... General Name, Symbol, Number oxygen, O, 8 Chemical series nonmetals Group, Period, Block 16, 2, p Appearance colorless Atomic mass 15. ... Water (from the Old English word wæter) is a colorless, tasteless, and odorless substance that is essential to all known forms of life and is known also as the most universal solvent. ... Quartz crystal A crystal is a solid in which the constituent atoms, molecules, or ions are packed in a regularly ordered, repeating pattern extending in all three spatial dimensions. ... Minerals are natural compounds formed through geological processes. ... Borax, (Na2B4O7·10H2O, sodium borate or sodium tetraborate) is an important boron compound. ... General Name, Symbol, Number Boron, B, 5 Series Metalloids Group, Period, Block 13 (IIIA), 2, p Density, Hardness 2460 kg/m3, 9. ...

The mineral was discovered in 1926 in Kern County, California and later named for the county. Kern County was the only known source of kernite for many years but is now mined in Chile, Spain, and Turkey. More deposits are likely yet to be discovered, since this mineral is only found at great depths. 1926 - Wikipedia /**/ @import /skins-1. ... Kern County is a county located in the southern Central Valley of California. ...

See also

• List of minerals