weloganite
Sign in to saveAlso known as IMA1967-042
Weloganite is a rare carbonate mineral with the formula: It was discovered by Canadian government mineralogist Ann P. Sabina in 1967 and named for Canadian geologist Sir William Edmond Logan (1798–1875). It was first discovered in Francon Quarry, Montreal, Quebec, Canada and has only been reported from a few localities worldwide.
Key facts
- Mineral.name
- Weloganite
- Mineral.boxbgcolor
- 847463
- Mineral.boxtextcolor
- fff
- Mineral.image
- Weloganite2(11x5.5).jpg
- Mineral.imagesize
- 260
- Mineral.category
- Carbonate mineral
- Mineral.formula
- Na2(Sr,Ca)3Zr(CO3)6·3H2O
- Mineral.IMAsymbol
- Wlg
- Mineral.molweight
- 814.16 g/mol
- Mineral.strunz
- 5.CC.05
- Mineral.dana
- 15.3.4.4
- Mineral.system
- Triclinic
- Mineral.class
- Pedial (1) (same H-M symbol)
- Mineral.symmetry
- P1
- Mineral.unit cell
- a = 8.966 Å, b = 8.98 Å c = 6.73 Å; α = 102.72° β = 116.65°, γ = 60.06°; Z = 1
- Mineral.color
- Yellow, pale yellow, amber, tan, white
- Mineral.habit
- Roughly hexagonal, tapering crystals, pseudorhombohedral
- Mineral.twinning
- About [103] repeated at 120 degrees
via Wikipedia infobox
Wikidata facts
- Image
- Weloganite2(11x5.5).jpg
Show 6 more facts
- IMA Mineral Symbol
- Wlg
- chemical formula
- Na₂Sr₃Zr(CO₃)₆·3H₂O
- Commons category
- Weloganite
- Nickel-Strunz 9th edition (updated 2009)
- 5.CC.05
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 5.CC.05
- Strunz 8th edition (series ID, updated)
- Vb/C.04
Sources (1)
via Wikidata · CC0
~3 min read
Article
5 sectionsContents
- Properties
- Occurrence
- See also
- References
- External links
{{Infobox mineral | name = Weloganite | boxwidth = | boxbgcolor =#847463 | boxtextcolor = #fff | image = Weloganite2(11x5.5).jpg | imagesize = 260 | alt = | category = Carbonate mineral | formula = Na2(Sr,Ca)3Zr(CO3)6·3H2O | IMAsymbol = Wlg | molweight = 814.16 g/mol | strunz = 5.CC.05 | dana = 15.3.4.4 | system = Triclinic | class = Pedial (1) (same H-M symbol) | symmetry = P1 | unit cell = a = 8.966 Å, b = 8.98 Å c = 6.73 Å; α = 102.72° β = 116.65°, γ = 60.06°; Z = 1 | color = Yellow, pale yellow, amber, tan, white | colour = | habit = Roughly hexagonal, tapering crystals, pseudorhombohedral | twinning = About [103] repeated at 120 degrees | cleavage = Perfect on pseudo {0001} | fracture = Conchoidal | tenacity = | mohs = | luster = Vitreous | streak = White | diaphaneity = translucent | gravity = 3.20–3.22 | density = | polish = | opticalprop = Biaxial (−) | refractive = nα = 1.558 nβ = 1.646 nγ = 1.640 | birefringence = δ = 0.082 | pleochroism = | 2V = Measured: 15° | dispersion = Weak | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = Pyroelectric. triboluminescent. | prop1 = | prop1text = | references =
}}
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