Modifiers matching rock:

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

Simple categories matching refractory:

• matter,
• carbide,
• silicide,
• material,
• metal,
• part,
• compound,
• oxide,
• powder,
• item,
• earth,
• fabric,
• mineral,
• filler,
• ore,
• medium,
• aggregate,
• alloy,
• shield,
• grain,
• property,
• clay,
• nitride,
• rock,
• wire,
• nonmetal,
• fibre,
• component,
• conductor,
• surface,
• body,
• molecule,
• substance,
• constituent,
• system,
• phosphate,
• brick,
• product,
• substrate,
• carrier,
• cement,
• vessel,
• particle,
• contaminant,
• complex,
• membrane,
• article,
• element,
• shape,
• fiber,
• macromolecule,
• lining,
• residue,
• solid,
• elements,
• filling,
• coating,
• fraction,