Furniture: Mahogany apothecary cabinet, £1,100, The Old Cinema; ‘Oscar’ sofa in ‘Prussian Blue’ cotton velvet, £2,000, sofa.com; ‘Plato’ coffee table, £279, Swoon Editions; ‘Fossil’ petrified wood side table, from £765, The Sofa and Chair CompanyFossils: (on top of cabinet) ammonite, £1,800, Dale Rogers Ammonite; Blue agate slice, £40, John Lewis; Crystal cluster, £12.99, Junior Geo. (on table) amethyst clusters, £39.99 (large), £4.50 (small); crystal sphere, £75, all Junior Geo. Marble and agate box, £25, John Lewis