General Information:
Chemical Formula:
Mg(HCO3)(OH)·2(H2O)
Composition:
(Molecular Weight = 138.36 gm)
Magnesium 17.57 % Mg
Hydrogen 4.37 % H
Carbon 8.68 % C
Oxygen 69.38 % O
Empirical Formula:
Mg(HCO3)(OH)·2(H2O)
Locality:
Coal mine at Nesquehoning, Schurlkill Co., Pensylvania, USA.
Name Origin:
Named after its locality.
Physical Properties:
Cleavage:
[110] Perfect, [001] Imperfect
Color:
colorless or white.
Density:
1.83 - 1.85, Average = 1.84
Diaphaniety:
Transparent to translucent
Habits:
Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite), Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).,
Hardness:
2.5 - Finger Nail
Luminescence:
Non-fluorescent.
Luster:
Vitreous - Dull
Streak:
white
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