Sample #140
- Catalognumber: 89070
- Species: Montmorillonite
- Modifier: fuller's earth
- Mineralgroup: Smectite
- Formula: (Na,Ca)0.3 (Al,Mg)2 Si4 O10 (OH)2 . nH2O
- Crystalsystem: monoclinic
- City: Woburn Sands
- Province: Buckinghamshire
- Country: England
- MinDBimages: 0