Infobox mineral name Admontite category Nesoborates boxwidth boxbgcolor image caption formula MgB sub 6 sub O sub 10 sub 7H sub 2 sub O ref name HB or br Magnesium Mg Boron B sub 6 sub Oxygen O sub 7 sub O Hydrogen H sub 6 sub 4H sub 2 sub O ref name Mindat molweight strunz 06.FA.15 dana 26.6.3.1 symmetry unit cell color colorless habit system Monoclinic twinning cleavage Absent fracture Conchoidal Fractures developed in brittle materials characterized by smoothly curving surfaces, e.g. quartz tenacity mohs 2 3 Gypsum Calcite luster refractive n sub sub 1.442 n sub sub 1.504 opticalprop Biaxial birefringence 0.062 pleochroism 2V dispersion none streak white gravity density 1.82 1.87, Average 1.84 melt fusibility diagnostic solubility diaphaneity other references ref name Mindat http www.mindat.org min 27.html Mindat.org ref ref name HB http rruff.geo.arizona.edu doclib hom admontite.pdf Handbook of Mineralogy ref ref name Webmin http www.webmineral.com data Admontite.shtml Webmineral data ref Admontite is a magnesium borate mineral with formula MgB sub 6 sub O sub 10 sub 7H sub 2 sub O. Occurrence In a gypsum deposit. Association Gypsum, anhydrite, hexahydrite, l oweite, eugsterite, pyrite, quartz. It is named after Admont , Austria . Its Mohs scale of mineral hardness Mohs scale rating is 2 to 3. References Reflist Category Magnesium minerals Category Nesoborates mineral stub ar de Admontit it Admontite lv Admont ts nl Admontiet simple Admontite vi Admontit ... more details
MgSO sub 4 sub 5H sub 2 sub O, Jokokuite MnSO sub 4 sub 5H sub 2 sub O Hexahydrite group Space group C2 c Hexahydrite MgSO sub 4 sub 6H sub 2 sub O, Bianchite Zn,Fe sup 2 sup SO sub 4 sub 6H sub 2 ... more details
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