portlandite

calcium hydroxide mineral
ChemicalSubstance mineral_species Q301805
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portlandite

Summary

portlandite is a mineral species[1]. portlandite draws 91 Wikipedia views per month (mineral_species category, ranking #149 of 1,431).[2]

Key Facts

  • portlandite's instance of is recorded as mineral species[3].
  • portland cement is named after portlandite[4].
  • portlandite's chemical formula is recorded as Ca(OH)₂[5].
  • portlandite is a type of brucite mineral group[6].
  • portlandite's Commons category is recorded as Portlandite[7].
  • portlandite's crystal system is recorded as trigonal crystal system[8].
  • portlandite's IMA status and/or rank is recorded as grandfathered mineral (G)[9].
  • portlandite's Strunz 8th edition is recorded as IV/F.03[10].
  • portlandite's Nickel-Strunz 9th edition is recorded as 4.FE.05[11].
  • portlandite's Nickel-Strunz '10th ed', review of is recorded as 4.FE.05[12].
  • portlandite's described by source is recorded as Portlandite, a new mineral from Scawt Hill, Co. Antrim[13].
  • portlandite's type locality is recorded as Scawt Hill[14].
  • portlandite's IMA Mineral Symbol is recorded as Por[15].

Why It Matters

portlandite draws 91 Wikipedia views per month (mineral_species category, ranking #149 of 1,431).[2] portlandite has Wikipedia articles in 11 language editions, a strong signal of global cultural recognition.[16]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] . The IMA List of Minerals (November 2018). wikidata.org.
  2. [4] . Handbook of Mineralogy. wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . Fleischer’s Glossary of Mineral Species 2014. wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . mineralienatlas.de. wikidata.org.
  7. [9] . IMA/CNMNC List of Mineral Names (March 2007). wikidata.org.
  8. [10] . Mineralogische Tabellen : Eine Klassifizierung der Mineralien auf kristallchemischer Grundlage, mit einer Einfuhrung in die Kristallchemie (1982). wikidata.org.
  9. [11] . mineralienatlas.de. wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . The IMA List of Minerals (May 2021). wikidata.org.
  12. [14] . Portlandite, a new mineral from Scawt Hill, Co. Antrim. wikidata.org.
  13. [15] . IMA–CNMNC approved mineral symbols. wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [16] . Wikidata sitelinks. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). portlandite. Retrieved May 3, 2026, from https://4ort.xyz/entity/portlandite
MLA “portlandite.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/portlandite.
BibTeX @misc{4ortxyz_portlandite_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{portlandite}}, year = {2026}, url = {https://4ort.xyz/entity/portlandite}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): portlandite — https://4ort.xyz/entity/portlandite (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 1d ago · Baum64 · 2026-08-23 view diff on Wikidata ↗
    Bulk modulus +35543000000.0
    Poisson's ratio +0.253
    Shear modulus +21012000000.0
    Point group Q13362471
    "/* wbcreateclaim-create:1| */ [[Property:P589]]: [[Q13362471]], [[:toollabs:quickstatements/#/batch/269342|batch #269342]]"
  2. 7d ago · Baum64 · 2026-08-17 view diff on Wikidata ↗
    Streak color Q23444
    Cod id 7020138
    Density +2295.85
    "/* wbcreateclaim-create:1| */ [[Property:P9824]]: 7020138, [[:toollabs:quickstatements/#/batch/269092|batch #269092]]"
  3. 9d ago · Cipintina · 2026-08-15 view diff on Wikidata ↗
    Crystal system trigonal crystal system
    Named after
    Described by source Portlandite, a new mineral from Scawt Hill, Co. Antrim
    Subclass of
    + 8 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P690]]: [[Q15040832]]"
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