Modifiers matching stone:

• siliceous,
• precious,
• semiprecious,
• healing,
• volcanic,
• indigenous,
• rough,
• colored,
• natural,
• black,
• fragile,
• hard,
• ornamental,
• friable,
• brilliant,
• coloured,
• small,
• loose,
• real,
• rare,
• valuable,
• color,
• packed,
• exotic,
• dark,
• white,
• soft,
• red,
• beautiful,
• special,
• supporting,
• colourful,
• elegant,
• authentic,
• expensive,
• common,
• manufactured,
• interesting,
• coated,
• lapidary,
• opaque,
• brittle,
• abrasive,
• refractive,
• difficult,
• native,
• raw,
• sturdy,
• costly,
• stained,
• igneous,
• bright,
• noble,
• colorful,
• sharp,
• unstable,
• traditional,
• trim,
• crushed,
• industrial,
• resistant,
• durable,
• impervious,
• indian,
• sensitive,
• harder,
• flat,
• commercial,
• synthetic,
• dense,
• good,
• artificial,
• exterior,
• textured,
• crystalline,
• hardest,
• heavy,
• colorless,
• carved,
• glassy,
• aggregate,
• heated,
• ancient,
• plutonic,
• yellow,
• looking,
• urinary,
• smooth,
• sparkly,
• shiny,
• earthy,
• transparent,
• round,
• smaller,
• desired,
• weaker,
• fine,
• genuine,
• coarse,
• lustreless,
• polished,
• symbolic,
• vibrant,
• decorative,
• free,
• nonabsorbent,
• translucent,
• structural,
• softer,
• complementary,
• heterogeneous,
• architectural,
• magical,
• rich,
• resilient,
• brazilian,
• metamorphic,
• typical,
• faceted,
• porous,
• upright,
• ceramic,
• acid,
• smoky,
• popular,
• metal,
• calcareous,
• large,
• darker,
• waxy,
• absorbent,
• available,
• inert,
• tough,
• strong,
• clean,
• sedimentary,
• clear,
• delicate,
• organic,
• unusual,
• unique,
• environmental,
• simulated,
• impermeable,
• single,
• local,
• rounded,
• everyday,
• alkaline,
• important,
• solid,
• powdered,

Simple categories matching harder:

• stone,
• ground,
• material,
• stimulant,
• polymer,
• aggregate,
• powder,
• layer,
• metal,
• drug,
• structure,
• thing,
• assets,
• surface,
• work,
• substance,
• substrate,
• crystal,
• sediment,
• glass,
• boot,
• object,
• deposit,
• mineral,
• gemstone,
• sport,
• rock,
• music,
• feldspar,
• alloy,
• abrasive,
• agent,
• resin,
• tissue,
• fabric,
• formation,
• medium,
• currency,
• ingredient,
• particle,
• wood,
• pin,
• narcotic,
• genre,
• part,
• stuff,
• food,
• cheese,
• filler,