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Whewellite

Whewellite /ˈhjuːəlaɪt/ is a mineral, monohydrated calcium oxalate, formula Ca C2O4·H2O. Because of its organic content it was thought to have an indirect biological origin; this hypothesis is supported by its presence in coal and sedimentary nodules. However, it has also been found in hydrothermal deposits where a biological source appears improbable.…

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Overview & Thermal decomposition

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Overview

16 related topics

Thermal decomposition

1 related topics

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Category
Oxalate minerals
Cleavage
{101} good, {010} imperfect, {001} indistinct, {110} indistinct
Color
Colorless, yellowish, brownish
Crystal class
Prismatic (2/m) (same H-M symbol)
Crystal habit
Equant or stout prismatic crystals
Crystal system
Monoclinic

Topics to explore

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Overview

Thermal decomposition

Advanced semantic analysis

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Map overview Semantic statistics

Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.

Whewellite

Nodes20
Edges19
Triples19
Avg. degree1.9
Density0.1
Components1

How this topic connects Entity context

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Whewellite

Top relations

Category · 1
Whewellite → Oxalate minerals
Cleavage · 1
Whewellite → {101} good, {010} imperfect, {001} indistinct, {110} indistinct
Color · 1
Whewellite → Colorless, yellowish, brownish
Crystal class · 1
Whewellite → Prismatic (2/m) (same H-M symbol)
Crystal habit · 1
Whewellite → Equant or stout prismatic crystals
Crystal system · 1
Whewellite → Monoclinic
Diaphaneity · 1
Whewellite → Transparent
Formula · 1
Whewellite → CaC2O4·H2O
Fracture · 1
Whewellite → Conchoidal
IMA symbol · 1
Whewellite → Whe

Important terminology Word statistics

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Important terminology

biological also oxalate mineral calcium found h2o formula crystals system references kidney stones named crystal prismatic decomposition minerals ca coal

Entity relationships Subject–Predicate–Object triples

Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.
SubjectPredicateObjectConfidenceSrc
WhewelliteCategoryOxalate minerals1.00infobox
WhewelliteCleavage{101} good, {010} imperfect, {001} indistinct, {110} indistinct1.00infobox
WhewelliteColorColorless, yellowish, brownish1.00infobox
WhewelliteCrystal classPrismatic (2/m) (same H-M symbol)1.00infobox
WhewelliteCrystal habitEquant or stout prismatic crystals1.00infobox
WhewelliteCrystal systemMonoclinic1.00infobox
WhewelliteDiaphaneityTransparent1.00infobox
WhewelliteFormulaCaC2O4·H2O1.00infobox
WhewelliteFractureConchoidal1.00infobox
WhewelliteIMA symbolWhe1.00infobox
WhewelliteLusterVitreous to pearly1.00infobox
WhewelliteMohs scale hardness2.5–31.00infobox
WhewelliteOptical propertiesBiaxial (+), colorless (transmitted light)1.00infobox
WhewelliteSolubilityInsoluble in water, soluble in acids1.00infobox
WhewelliteSpace groupP21/c (no. 14)1.00infobox
WhewelliteSpecific gravity2.231.00infobox
WhewelliteStrunz classification10.AB.451.00infobox
WhewelliteTenacityBrittle1.00infobox
WhewelliteTwinninge {101} twin plane1.00infobox

Related concept clusters Concept neighborhoods

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