- Name of rock [components]
- Colours
- Type; Grain and texture
- Uses
- Amphibolite [Amphibole, plagioclase, biotite, diopside, garnet, spatite, magnetite, ilmenite, sphene]
- Dark green to black, with white spots
- Regional; Medium to coarse, banded
- Rarely used in building
- Calc-silicate Rock [Calcite, olivine, periclase, serpentine, tremolite, diopside, wallastonite, vesuviusite, garnet]
- Grey, black, red, green
- (n/a); Medium to coarse
- Calciphyre [Calcite, wollastonite, garnet, plagioclase, scapolite, diopside, sphene, ilmenite,clintonite, graphite, quartz, phlogopite, brucite, spinel]
- Brown, light green, blue, white
- Contact; fine to medium
- Scientific
- Coal [Vegetable matter]
- Brown, black
- (n/a);
- Fuel for heating and generating electricity
- Eclogite [Pyroxene, garnet, kyanite, diamond]
- Green, red
- Regional; Medium to coarse, banded, dense
- Rarely used in building
- Gneiss [Feldspar, mica, quartz, apatite, epidote, garnet, hornblende, ilmenite, magnetite, pyrite, monazite, pyrrhotite]
- Grey, pink, in layers
- Regional; Medium to coarse
- Rarely used in building
- Granulite [Feldspar, granite, augite, quartz, corundum, enstatite, kyanite, magnetite, rutile, spinel]
- Dark, black, with light parts
- Regional; Coarse, resistant to the elements
- Building
- Halleflinta [Not visible to the naked eye]
- Grey, buff, pink, green, brown
- (n/a); Fine
- Hornfels [Mica, quartz, andalusite, pyroxene, cordierite, garnet, feldspar]
- Grey, brown, dark
- Contact; Fine
- Marble [Clay, quartz, garnet, olivine, goethite, hematite, epidote, graphite]
- Grey, white, red, green, blue
- Contact; Coarse
- Building
- Metaquartzite [Sandstone, quartz, feldspar, goethite, limonite]
- Regional; Fine to medium
- Migmatite [Feldspar, mica, augite, quartz, hornblende, apatite, magnetite, zircon, marble]
- Green, black bands, with lighter stripes
- Anatectic; Medium to coarse
- Flooring, facings
- Mylonite [Depends upon preexistent rocks]
- Black, dark grey
- Metasomatic; Tightly-packed deposits
- Scientific
- Phyllite [Chlorite, muscovite]
- Green, grey, with silvery sheen
- Regional; Fine to medium, minor folds
- Rarely used in building
- Rodingite [Garnet, pyroxene, chlorite, amphibole, sphene, epidote, vesuvianite]
- Brown, red, green, rose
- Metasomatic; Coarse
- Scientific
- Schist [Mica, feldspar, quartz, andalusite, cordierite, garnet, kyanite, staurolite]
- Various colours
- Regional; medium to coarse
- Rarely used in building
- Skarn [Calcite, axinite, diopside, epidote, garnet, wollastonite, chalcopyrite, galena, magnetite, pyrite, sphalerite]
- Black, brown, grey
- Metasomatic; Fine to coarse, banded
- Mined for ores
- Slate [Clay, shale, quartz, andalusite, cordierite, mica, graphite]
- Black, blue, green, brown, buff
- Regional; Fine
- Roofing tiles, pool-table tops