Kieserite: Difference between revisions

Revision as of 09:36, 7 July 2011

Kieserite^[1]^[2]
HJS MgSO4 092503-3.jpg
Mineralogical name	Kieserite
Chemical name	Magnesiumsulphate Monohydrate
Trivial name
Chemical formula	Mg[SO₄] • H₂O
Other forms	Sanderite (MgSO₄•2H₂O) Starkeyite (MgSO₄•4H₂O) Pentahydrite (MgSO₄•5H₂O) Hexahydrite (MgSO₄•6H₂O) Epsomite (MgSO₄•7H₂O) Meridianite (MgSO₄•11 H₂O) Magnesium 12-Hydrate
Crystal system	monoclinic
Crystal structure	monoclinic prismatic
Deliquescence humidity 20°C
Solubility (g/l) at 20°C	684 g/l (100°C)
Density (g/cm³)	2,57 g/cm³
Molar volume	53,85 cm³/mol
Molar weight	138,9 g/mol
Transparency	translucent
Cleavage	perfect
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments	can be produced from an aqueous solution over 67°C, soluble in water and glycerin, not soluble in waterless alcohol
Crystal Optics
Refractive Indices	n_x = 1,523-1,520 n_y = 1,535-1,533 n_z = 1,586-1,584
Birefringence	Δ = 0,063-0,064
Optical Orientation	biaxial positive
Pleochroism
Dispersion	55°
Used Literature
{{{Literature}}}

@@ Line 10: / Line 10: @@
 |Crystal_Structure    = monoclinic prismatic
 |Deliqueszenzhumidity =
-|Solubility           =
+|Solubility           = 684 g/l (100°C)
 |Density              = 2,57 g/cm<sup>3</sup>
 |MolVolume            = 53,85 cm<sup>3</sup>/mol
@@ Line 25: / Line 25: @@
 |Phase_Transition     =
 |chemBehavior         =
-|Comments             =
+|Comments             = can be produced from an aqueous solution over 67°C,<br>soluble in water and glycerin, not soluble in waterless alcohol
 }}