ウィークス石
Sign in to saveWeeksite is a naturally occurring uranium silicate mineral with the chemical formula: K2(UO2)2Si6O15•4(H2O), potassium uranyl silicate. Weeksite has a Mohs hardness of 1–2. It was named for USGS mineralogist Alice Mary Dowse Weeks (1909–1988).
Key facts
- Mineral.name
- Weeksite
- Mineral.image
- Weeksita-RM1439.jpg
- Mineral.category
- Silicate mineral
- Mineral.formula
- K2(UO2)2Si6O15·4(H2O)
- Mineral.IMAsymbol
- Wks
- Mineral.strunz
- 9.AK.30
- Mineral.system
- Orthorhombic
- Mineral.class
- Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)
- Mineral.symmetry
- Pnnb (no. 52)
- Mineral.unit cell
- a = 14.26 Å, b = 35.88 Å c = 14.2 Å; Z = 16
- Mineral.colour
- Yellow
- Mineral.habit
- Occurs as acicular to elongated bladed crystals, flattened on {010}, also as radiating fibrous clusters and spherulites, pseudotetragonal
- Mineral.cleavage
- Distinct prismatic
- Mineral.mohs
- 1–2
- Mineral.lustre
- Waxy to silky
- Mineral.streak
- Yellow
- Mineral.diaphaneity
- Transparent to translucent
- Mineral.gravity
- 4.1
via Wikipedia infobox
Wikidata facts
- Subclass of
- nesosilicates
- Named after
- Alice D. Weeks
- Image
- Weeksite.jpg
Show 8 more facts
- Nickel-Strunz 9th edition (updated 2009)
- 9.AK.30
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 9.AK.30
- crystal system
- monoclinic crystal system
- Commons category
- Weeksite
- streak color
- yellow
- IMA Mineral Symbol
- Wks
- chemical formula
- K₂(UO₂)₂(Si₅O₁₃) * 4H₂O
- Strunz 8th edition (series ID, updated)
- VIII/A’.15
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