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Mineral Reference Lookup for Hydrotalcite

This reference page contains mineralogic data for Hydrotalcite and folklore and metaphysical beliefs. If the mineral is an alternate naming of a more common name, the more common mineral's data is displayed below the list of synonyms.

Minerals matching Hydrotalcite in the database: Hydrotalcite  

Mineralogical Reference

Hydrotalcite
MineralHydrotalcite
ChemistryMg 6 Al 2 [(OH) 16 |CO 3 ] ยท 4H 2 O
Colorwhite to transparent
LusterPearly
CrystalSystemTrigonal
CleavagePerfect Perfect
Hardness2
IMAStatusApproved
Discovered1842
CellParametersa = 3.07c = 23.23
Ratioa:c = 1 : 7.567
OpticalTypeUniaxial (-)
RIn ω =1.511 - 1.531 n ε =1.495 - 1.52
Birefringenceδ=0.016
SurfaceReliefLow
Strunz5/E.03-10 5 : NitratesCarbonates & Borates E : Water-bearing carbonates with unfamiliar anions 03 : Hydrotalcite group
AGBTTUM_189
ANCHTUM_139
DANSPC_472
QZSMHRT51_004
OCOGEO_958
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