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Ikaite

Ikaite is the mineral name for the hexahydrate of calcium carbonate, CaCO3·6H2O. Ikaite tends to form very steep or spiky pyramidal crystals, often radially arranged, of varied sizes from thumbnail size aggregates to gigantic salient spurs. It is only found in a metastable state and decomposes rapidly by losing most of its water content once removed from…

Distribution, Structure & Pseudomorphs

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Distribution

MineralogistIkka FjordGreenlandIvittuutCryolite
22 related topics

Structure

MonoclinicCrystal systemSpace groupThermodynamicallyMetastable
10 related topics

Pseudomorphs

TufaMono LakeMarineFreshwaterEstuarine
9 related topics

Isotope geochemistry

Isotope geochemistryMethane
2 related topics

Key facts & relationships

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Birefringence
d = 0.090
Category
Carbonate mineral, hydrous carbonates subgroup
Color
White when pure
Crystal class
Prismatic (2/m) (same H-M symbol)
Crystal habit
Nearly square prism; pyramidal; sigmoidal: square prism capped with oppositely canted pyramids; massive, tubular (tinolite vr.)
Crystal system
Monoclinic

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Overview

Distribution

Structure

Pseudomorphs

Isotope geochemistry

Advanced semantic analysis

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Map overview Semantic statistics

Ikaite

Nodes55
Edges54
Triples196
Avg. degree1.96
Density0.036364
Components1

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Ikaite

Top relations

related to Further reading · 85
Ikaite → Alaska NJG, An, Arctic, Artemisia Press, Balic-Zunic, Barrow, Bernasconi, Bibcode, Broch, Bulletin, Burger, Calcium Carbonate Hexahydrate, California, CM, CO, Cold, CS1, Dalradian, Deep-Sea Ikaite, Denmark
related to Pseudomorphs · 32
Ikaite → Although, Australia, Barleycorn, Bay, California, CanadaGersternkorner, Dan, DenmarkPseudogaylussite, Fundy, Gaylussite, Gennoishi, Ger, Glendon, Glendonite, Gr, Jarrow, Jp, Jutland, Kola, Mole Cross
related to Distribution · 25
Ikaite → Adélie Land, Antarctica, At, Bransfield Strait, British Columbia, Canada, Congo, Danish, Dieckmann, Eastern Siberia, Greenland, Here, Ikka Fjord, In, It, Ivittuut, Okhotsk, Pauly, Saanich Inlet, Sakhalin
related to External links · 12
Ikaite → Archived, DenmarkPyramidia, Fascinating GlendoniteA, German, Giant, Jutland, Lair, Mineralogical, Moler Island, Rare, Wayback Machine, Wayback MachineIkaite
related to Thinolite deposits · 8
Ikaite → California, Greek, Ikka, It, Mono Lake, Thinolite, This, US
related to Stability · 7
Ikaite → Cold, Earth's, It, Nevertheless, Pelouze, Synthetic, When
related to Isotope geochemistry · 5
Ikaite → Isotope, Similarly, Some, Studies, The
related to Structure · 4
Ikaite → C2/c, Ca2, CO32, The
Birefringence · 1
Ikaite → d = 0.090
Category · 1
Ikaite → Carbonate mineral, hydrous carbonates subgroup

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Important terminology

pseudomorphs mineral doi carbonate water 10 calcium found https org form marine also reported cold glendonite nucleation california glendonites metastable

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
IkaiteBirefringenced = 0.0901.00infobox
IkaiteCategoryCarbonate mineral, hydrous carbonates subgroup1.00infobox
IkaiteColorWhite when pure1.00infobox
IkaiteCrystal classPrismatic (2/m) (same H-M symbol)1.00infobox
IkaiteCrystal habitNearly square prism; pyramidal; sigmoidal: square prism capped with oppositely canted pyramids; massive, tubular (tinolite vr.)1.00infobox
IkaiteCrystal systemMonoclinic1.00infobox
IkaiteFormula.mw-parser-output .template-chem2-su{display:inline-block;font-size:80%;line-height:1;vertical-align:-0.35em}.mw-parser-output .template-chem2-su>span{display:block;text-align:l…1.00infobox
IkaiteIMA symbolIka1.00infobox
IkaiteLusterDull1.00infobox
IkaiteMohs scale hardness31.00infobox
IkaiteOptical propertiesBiaxial (−)1.00infobox
IkaiteOther characteristicsDecomposes into water and calcite above 8 °C1.00infobox
IkaiteRefractive indexnα = 1.455 nβ = 1.538 nγ = 1.5451.00infobox
IkaiteSpace groupC2/c1.00infobox
IkaiteSpecific gravity1.831.00infobox
IkaiteStreakWhite1.00infobox
IkaiteStrunz classification5.CB.251.00infobox
Ikaiteis amineral name for the hexahydrate of calcium carbonate0.90text

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