tobermorite

Tobermorite is a calcium silicate hydrate mineral with chemical formula: Ca5Si6O16(OH)2·4H2O or Ca5Si6(O,OH)18·5H2O.

In the Vinony graph

Vinony's link graph records 22 inbound references to tobermorite, and connects out to International Standard Serial Number, hydrogrossular and Jordan.

It is catalogued under topics including Calcium compounds, Calcium minerals and Cement.

Vinony links it to 14 Wikipedia language editions.

Key facts

Mineral.name: Tobermorite
Mineral.category: Silicate mineral, Calcium silicate hydrate
Mineral.image: Tobermorite-t08-76a.jpg
Mineral.caption: Crystalline mass of tobermorite
Mineral.formula: Ca5Si6O16(OH)2·4H2O, or; Ca5Si6(O,OH)18·5H2O
Mineral.IMAsymbol: Tbm
Mineral.molweight: 702.36 g/mol
Mineral.strunz: 9.DG.10
Mineral.system: Orthorhombic
Mineral.class: Disphenoidal (222) H-M symbol: (2 2 2)
Mineral.symmetry: C2221 (no. 20)
Mineral.unit cell: a = 11.17 Å, b = 7.38 Å c = 22.94 Å; β = 90°; Z = 4
Mineral.color: Pale pinkish white, white, brown
Mineral.habit: As minute laths; fibrous bundles, rosettes or sheaves, radiating or plumose, fine granular, massive.
Mineral.cleavage: {001} Perfect, {100} Imperfect
Mineral.mohs: 2.5
Mineral.luster: Vitreous, silky in fibrous aggregates
Mineral.refractive: nα = 1.570 nβ = 1.571 nγ = 1.575

via Wikipedia infobox

Wikidata facts

Named after: Tobermory
Image: Tobermorit.jpg

Show 9 more facts

Nickel-Strunz '10th ed', review of (9th ed/ 2009 update): 9.DG.10
Commons category: Tobermorite
Nickel-Strunz 9th edition (updated 2009): 9.DG.10
type locality (geology): Tobermory
streak color: white
crystal system: orthorhombic crystal system
IMA Mineral Symbol: Tbm
chemical formula: Ca₄Si₆O₁₇(H₂O)₂·(Ca·3H₂O
Strunz 8th edition (series ID, updated): VIII/D.10

Sources (2)

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Encyclopedic overview

6 sections

Contents

Use in Roman concrete
Cement chemistry
See also
References
Further reading
External links

{{Infobox mineral | name = Tobermorite | category = Silicate mineral, Calcium silicate hydrate | image = Tobermorite-t08-76a.jpg | caption = Crystalline mass of tobermorite | formula = Ca5Si6O16(OH)2·4H2O, or; Ca5Si6(O,OH)18·5H2O | IMAsymbol = Tbm | molweight = 702.36 g/mol | strunz = 9.DG.10 | system = Orthorhombic | class = Disphenoidal (222) H-M symbol: (2 2 2) | symmetry = C2221 (no. 20) | unit cell = a = 11.17 Å, b = 7.38 Å c = 22.94 Å; β = 90°; Z = 4 | color = Pale pinkish white, white, brown | habit = As minute laths; fibrous bundles, rosettes or sheaves, radiating or plumose, fine granular, massive. | twinning = | cleavage = {001} Perfect, {100} Imperfect | fracture = | tenacity = | mohs = 2.5 | luster = Vitreous, silky in fibrous aggregates | polish = | refractive = nα = 1.570 nβ = 1.571 nγ = 1.575 | opticalprop = Biaxial (+) | birefringence = δ = 0.005 | dispersion = | pleochroism = | fluorescence= Fluorescent, Short UV:weak white to yellow, Long UV:weak white to yellow | absorption = | streak = White | gravity = 2.423 – 2.458 | diaphaneity = Translucent to translucent | other = | references = }}

Tobermorite is a calcium silicate hydrate mineral with chemical formula: Ca5Si6O16(OH)2·4H2O or Ca5Si6(O,OH)18·5H2O.

Excerpted from Wikipedia’s “tobermorite” article, available under the CC BY-SA 4.0 licence.