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Dominant species
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Hydromagnesite
Chemical
Formula
Mg5(CO3)4(OH)2·4H2O
Species
Carbonates
Crystal
System
Monoclinic
Mohs
Scale
3
Specific
Gravity
2.16-2.2
Color
Colorless, white
Streak
White
Luster
Vitreous, Silky, Pearly, Earthy
Refractive
Index
n = 1.523 n = 1.527 n = 1.545
Diaphaneity
Transparent
Cleavage
PerfectOn .
Fracture
Uneven
Crystal Habit:Acicular and as encrustations
Geological Setting:Low-temperature, hydrothermal environments in serpentine and altered magnesium-rich igneous rocks.
Hydromagnesite6750
Hydromagnesite6750
Hydromagnesite6749
Hydromagnesite6749
Hydromagnesite6748
Hydromagnesite6748

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