Babingtonite is a calcium iron manganese inosilicate mineral with the formula Ca₂(Fe,Mn)FeSi₅O₁₄(OH). It is unusual in that iron(III) completely replaces the aluminium so typical of silicate minerals. It is a very dark green to black translucent (in thin crystals or splinters) mineral crystallizing in the triclinic system with typically radial short prismatic clusters and druzy coatings. It occurs with zeolite minerals in cavities in volcanic rocks. Babingtonite contains both iron(II) and iron(III) and shows weak magnetism. It has a Mohs hardness of 5.5 to 6 and a specific gravity of 3.3. General Name, Symbol, Number calcium, Ca, 20 Chemical series alkaline earth metals Group, Period, Block 2, 4, s Appearance silvery white Atomic mass 40. ... General Name, Symbol, Number iron, Fe, 26 Chemical series transition metals Group, Period, Block 8, 4, d Appearance lustrous metallic with a grayish tinge Atomic mass 55. ... General Name, Symbol, Number manganese, Mn, 25 Chemical series transition metals Group, Period, Block 7, 4, d Appearance silvery metallic Atomic mass 54. ... The silicate minerals make up the the largest and most important class of rock-forming minerals. ... In crystallography, the triclinic crystal system is one of the 7 lattice point groups. ... Zeolite Zeolites (Greek, zein,to boil;lithos,a stone) are minerals that have a porous structure. ... Ignimbrite is a deposit of a pyroclastic flow. ... In physics, magnetism is one of the phenomena by which materials exert an attractive or repulsive force on other materials. ... Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer. ... Relative density (also known as specific gravity) is a measure of the density of a material. ...

It was first described in 1824 from Arendal, Aust-Agder, Norway and was named after the Irish physicist and mineralogist William Babington (1757-1833). A physicist is a scientist trained in physics. ... Mineralogy is an earth science that involves the chemistry, crystal structure, and physical (including optical) properties of minerals. ... William Babington (May 21, 1756 - April 29, 1833) was a British physician and mineralogist. ...

References

• Mindat with location data
• Webmineral
• Mineral galleries