Simple categories matching brittle:

• binder,
• powder,
• mineral,
• polymer,
• material,
• semiconductor,
• body,
• covering,
• substrate,
• element,
• deposit,
• coating,
• solid,
• film,
• rock,
• food,
• waste,
• filler,
• metal,
• foam,
• medium,
• surface,
• resin,
• wafer,
• composite,
• stone,
• unit,
• plate,
• aggregate,
• tree,
• wood,
• fibre,
• substance,
• fiber,
• object,
• tool,
• particle,
• nature,
• constituent,
• article,
• cookie,
• plastic,
• adhesive,
• system,
• crystal,
• structure,
• sheet,
• component,

Members with property brittle:

• volcanic_tuff,
• silicon,
• enamel,
• quartz,
• ceramic_material,
• sapphire,
• magnesium,
• hard_candy,
• vanadium,
• emerald,
• manitoba_maple,
• rock,
• granite,
• cracker,
• tungsten_carbide,
• zinc,
• silica,
• stone,
• pyrite,
• marble,
• titanium_alloy,
• polymer,
• lead_sulphide,
• glass,
• rubber,
• diamond,
• feldspar,
• aluminium,
• epoxy,
• limestone,
• ferrite_wafer,
• ferrite,
• salt,
• neodymium,
• silicon-carbide_filament,
• mango,
• bismuth,
• feldspar_porphyry,
• gabbro,
• dental_enamel,
• reinforced-concrete_structure,
• phenolic_foam,
• germanium,
• si_substrate,
• niobium,
• baked_clay,
• metallic_oxide,
• sheet,
• powder_coating,
• tin,
• mirror,
• rosewood,
• crystal,
• hard_alloy,
• ruby,
• ni,
• conifer,
• sand_stone,
• silicone_wafer,
• sintered_carbide,
• ceramic_substrate,
• diamond_film,
• soda-lime_glass,
• glass_piece,
• cassiterite,
• dental_gypsum,
• bone,
• basalt,
• wolframite,
• pure_beryllium,
• gold,
• epoxy_composite,
• copper,
• engineering,
• chromium,
• flint,
• amorphous_material,
• tungsten,
• pyrophyllite,
• silicon_nitride,
• soil,
• magnet_material,
• precious_stone,
• garnet,
• asbestos,
• joint,
• birch,
• masonry,
• mineral,
• coarse_carbide,
• nuclear_graphite,
• sulfide,
• cast_aluminum,
• natural_stone,
• hard_coating,
• glass_wafer,
• dental_tartar,
• sphalerite,
• vein_quartz,
• thorium,
• silver,
• lime,
• resin,
• amorphous_polymer,
• silica_fiber,
• deformation_band,
• boron_carbide,
• ramp,
• arsenopyrite,
• asbestos_cement,
• conventional_epoxy,
• steel,
• concrete,
• amethyst,
• si,
• ice,
• agate,
• grey_iron,
• aluminum_nitride,
• unmodified_epoxy,
• pyrex_glass,
• cherry,
• copper_tungsten,
• sandstone,
• silica_glass,
• titanium_nitride,
• concrete_exhibit,
• manganese,
• argillite,
• graphite,
• rock-salt_king,
• nigerian_ebony,
• composite_metal,
• carbon,
• carbon_fiber,
• ceramic_sheet,
• windscreen,
• silicon_powder,
• optical_fibre,
• crack,
• ordinary_chalk,
• ge,
• oak,
• concrete_slab,
• grinding_material,
• compact_disc,
• tuff,
• polyester,
• poplar,
• mo,
• vitrified_clay,
• quartzite,
• oxide_glasses,
• linden,
• structural_clay,
• vein,
• renal_calculus,
• titanium_carbide,
• martensite,
• silicon_wafer,
• salt_cake,
• polycrystalline_alumina,
• glasses,
• cementite_particle,
• surgical_steel,
• nickel,
• engineering_ceramics,
• gypsum,
• horn,
• mica,
• tofu,
• fertilizer,
• slate,
• cement,
• styrene_acrylate,
• polystyrene,
• coal,
• ceramic_tool,
• chert,
• phenol_formaldehyde,
• ore,
• styrene,
• andesite,
• paper,
• vitreous_carbon,
• molybdenum,
• silicate,
• cast_brass,
• powdered_metal,
• intrusive_body,
• diamond_bit,
• organic_glasses,
• glass_article,
• molybdenum_silicide,
• hard_bronze,
• ebony,
• zirconium,
• clay_tile,
• emery,
• semiconductor_material,
• carbide,
• glass_plate,
• black_locust,
• scheelite,
• nitride,
• wood,
• antimony,
• magnesia,
• glass_sheet,
• stiff_clay,
• black_cherry,
• ceramic_coating,
• solid-state_material,
• phenol_resin,
• ceramics,
• part_gold,
• amorphous_metal,
• wafer,
• cylinder_liner,
• cold_polymer,
• dolomite,
• geological_substance,
• plaster,
• oxide,
• semiconductor_wafer,
• ceramic_tile,
• glass_material,
• ash,
• shower_tree,
• glass_substrate,
• gallium_nitride,
• polyurethane,
• tooth_dentin,
• titanium,
• porcelain_enamel,
• plate,
• carbon_fibre,
• joint_set,
• si_crystal,
• phenolic_resorcinol,
• data_diskette,
• magnetic_material,
• bismuth_telluride,
• hackle,
• semiconductor,
• alloy,
• glass_bottle,
• clay,
• stucco,
• porous_silica,
• larch,
• quartz_substrate,
• carbon_foam,
• metal,
• silicon_resin,
• aluminum,
• alumina,
• compound_semiconductor,
• amorphous_silicon,
• carbon_particle,
• asphalt,
• beryllium,
• geological_material,
• acrylic,
• oxide_scale,
• whitewash,
• base_rock,
• spraying_asbestos,
• part,
• nylon,
• cu,
• chalk,
• bones,
• alum,