Modifiers matching rock:

• artificial,
• hard,
• sedimentary,
• decorative,
• enough,
• metamorphic,
• flat,
• refractory,
• conductive,
• smaller,
• polyphase,
• volcanic,
• virgin,
• dark,
• igneous,
• abrasive,
• vitreous,
• russian,
• impenetrable,
• underlying,
• visible,
• crustal,
• extraterrestrial,
• large,
• industrial,
• crystalline,
• soft,
• fragmented,
• original,
• salt,
• angular,
• modern,
• porous,
• combustible,
• dated,
• plutonic,
• firm,
• aluminous,
• barren,
• rigid,
• flinty,
• colorful,
• geologic,
• sharp,
• rich,
• marine,
• hot,
• indigenous,
• dense,
• molten,
• acidic,
• fragile,
• soluble,
• sticky,
• ornamental,
• argillaceous,
• unstable,
• nonporous,
• available,
• alkaline,
• glassy,
• heavier,
• coloured,
• softer,
• durable,
• carbonaceous,
• older,
• friable,
• basic,
• organic,
• colored,
• good,
• surrounding,
• non-porous,
• crushed,
• polished,
• local,
• competent,
• tough,
• typical,
• compact,
• calcareous,
• flying,
• deleterious,
• eruptive,
• natural,
• red,
• frozen,
• strong,
• normal,
• elastic,
• unusual,
• consolidated,
• impervious,
• intrusive,
• stronger,
• harder,
• korean,
• azonic,
• granular,
• unconsolidated,
• size,
• related,
• small,
• coarse,
• rough,
• massive,
• stable,
• heavy,
• textured,
• heated,
• geological,
• white,
• permeable,
• refractive,
• reactive,
• magnetic,
• precious,
• egyptian,
• opaque,
• base,
• weak,
• anisotropic,
• subsurface,
• exotic,
• reflective,
• useful,
• fine,
• common,
• chemical,
• siliceous,
• inert,
• acid,
• weaker,
• resistant,
• metallic,
• isolated,
• pulverized,
• insoluble,
• solid,
• abundant,
• impermeable,
• powdered,
• native,
• terrestrial,
• loose,
• smooth,
• inappropriate,
• polycrystalline,
• ductile,
• hardest,
• simple,
• planetary,
• extrusive,
• british,
• looking,
• light,
• covered,
• crumbly,
• heterogeneous,
• suitable,
• new,
• ingenious,
• noble,
• tight,
• traditional,
• homogeneous,
• free,
• sedentary,
• intermediate,
• primary,
• lighter,
• dry,
• clastic,
• ordinary,
• brittle,
• widespread,
• spherical,
• uniform,
• difficult,
• lightweight,
• bituminous,

Simple categories matching fragile:

• object,
• item,
• artefact,
• organ,
• organs,
• surface,
• garment,
• structure,
• cable,
• pattern,
• article,
• passageway,
• fiber,
• solid,
• material,
• herb,
• format,
• nature,
• food,
• layup,
• feature,
• load,
• formulation,
• protoplast,
• layer,
• cookie,
• portion,
• glass,
• container,
• environment,
• film,
• thing,
• fabric,
• equipment,
• medium,
• ingredient,
• plate,
• rock,
• insect,
• works,
• fruit,
• organism,
• plant,
• document,
• monument,
• sector,
• web,
• fluid,
• creature,
• covering,
• stone,
• compound,
• instrumentation,
• meat,
• liquid,
• product,
• component,
• ion,
• content,
• comestible,
• tank,
• form,
• gem,
• original,
• coating,
• tissue,
• glassware,
• instrument,
• zone,
• industry,
• animal,
• substance,
• commodity,
• cultivar,
• molecule,
• artifact,
• zooplankton,
• sheet,
• berry,
• ware,
• process,
• prey,
• contamination,
• particle,
• setting,
• tube,
• area,
• protist,
• substrate,
• use,
• cell,
• gemstone,
• work,
• fibre,
• region,
• land,
• part,