Modifiers matching rock:

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

Simple categories matching precious:

• stone,
• substance,
• metal,
• clay,
• assets,
• necklace,
• emotion,
• gemstone,
• gem,
• ornament,
• friend,
• material,
• herb,
• tree,
• artifact,
• alloy,
• photograph,
• jewelry,
• textile,
• pendant,
• object,
• memory,
• price,
• tradition,
• balsam,
• mineral,
• coral,
• scrap,
• fluid,
• item,
• mixture,
• weapon,
• property,
• treasure,
• wood,
• nonmetal,
• file,
• works,
• salt,
• liquid,
• oxide,
• pigment,
• quality,
• trinket,
• animal,
• fish,
• keepsake,
• fabric,
• catalyst,
• hardwood,
• commodity,
• resin,
• display,
• cereal,
• spice,
• food,
• rock,
• ingredient,
• jewel,
• liberty,
• botanical,
• container,
• artefact,
• product,
• fauna,
• deposit,
• content,
• beads,
• group,
• stuff,
• substrate,
• drug,
• resource,
• document,
• article,
• matter,
• fiber,
• fibre,
• values,
• seasoning,
• sample,
• fuel,
• skin,
• ore,
• surface,
• data,
• thing,
• relic,
• antiquity,