 1 Olivine: forsterite Olivine: Forsterite, in marble. Plane-polarised light, width of view 2.5 mm. |
 2 Olivine: forsterite Olivine: Forsterite, in marble. Polars crossed, width of view 2.5 mm. |
 3 Zircon Zircon, with distinct core and rim zones, in aluminous granulite. Plane-polarised light, width of view 0.25 mm. |
 4 Zircon Zircon, with distinct core and rim zones, in aluminous granulite. Polars crossed, width of view 0.25 mm. |
 5 Titanite Titanite (sphene), in calc-silicate marble. Plane-polarised light, width of view 1 mm. |
 6 Titanite Titanite (sphene), in calc-silicate marble. Polars crossed, width of view 1 mm. |
 7 Garnet: almandine Garnet: almandine, in kyanite-grade mica schist. Plane-polarised light, width of view 2.5 mm. |
 8 Garnet: almandine Garnet: almandine, idioblastic and poikiloblastic, in schist. Plane-polarised light, width of view 6 mm. |
 9 Garnet: almandine Garnet: almandine, with graphitic inclusion trails showing a deflection near the rim, in kyanite-garnet schist. Plane-polarised light, width of view 1 mm. |
 10 Garnet: almandine Garnet: almandine, with rotational double-spiral inclusion trails, in schist. Plane-polarised light, width of view 2.5 mm. |
 11 Garnet: almandine-pyrope Garnet: almandine-pyrope, with sillimanite inclusions, in granulite-facies garnet-cordierite gneiss. Plane-polarised light, field of view 5 mm |
 12 Garnet: almandine-pyrope-grossular Garnet: almandine-pyrope-grossular, with corona texture of plagioclase and orthopyroxene, in granulite-facies metabasite. Plane-polarised light, field of view 4 mm |
 13 Garnet: almandine-pyrope-grossular Garnet: almandine-pyrope-grossular (isotropic mass at centre), with corona texture of plagioclase and orthopyroxene, in granulite-facies metabasite. Polars crossed, field of view 4 mm |
 14 Garnet: andradite Garnet: andradite, in marble. Plane-polarised light, field of view 3.5 mm |
 15 Vesuvianite Vesuvianite, in calc-silicate skarn. Plane-polarised light, field of view 2.5 mm |
 16 Vesuvianite Vesuvianite, in calc-silicate skarn. Polars crossed, field of view 2.5 mm |
 17 Sillimanite Sillimanite (fibrolite), intergrown with biotite in schist. Plane-polarised light, field of view 5 mm |
 18 Sillimanite Sillimanite (fibrolite), intergrown with biotite in schist. Polars crossed, field of view 5 mm |
 19 Sillimanite Sillimanite, nodules of fibrolite in schist. Plane-polarised light, field of view 5 mm |
 20 Sillimanite Sillimanite, nodules of fibrolite in schist. Polars crossed, field of view 5 mm |
 21 Sillimanite Sillimanite, prismatic, in aluminous granulite. Plane-polarised light, field of view 2.5 mm |
 22 Sillimanite Sillimanite, prismatic, in aluminous granulite. Polars crossed, field of view 2.5 mm |
 23 Andalusite Andalusite (chiastolite) in graphitic hornfels. Plane-polarised light, field of view 8 mm |
 24 Andalusite Andalusite (chiastolite) with pink core zone, in graphitic hornfels. Plane-polarised light, field of view 2.5 mm |
 25 Andalusite Andalusite, poikiloblastic, in schist. Ordinary light, field of view 10 mm |
 26 Kyanite Kyanite, in schist. Plane-polarised light, field of view 2.5 mm |
 27 Kyanite Kyanite, in schist, showing three different crystal orientations. Plane-polarised light, field of view 2.5 mm |
 28 Kyanite Kyanite, in schist, showing three different crystal orientations. Polars crossed, field of view 2.5 mm |
 29 Staurolite Staurolite, prism in schist. Plane-polarised light, field of view 2.5 mm |
 30 Staurolite Staurolite poikiloblast, in schist. Plane-polarised light, field of view 2.5 mm |
 31 Staurolite Staurolite poikiloblast showing interpenetrant twinning, in schist. Polars crossed, field of view 2.5 mm |
 32 Staurolite Staurolite showing internal inclusion fabric, in schist. Plane-polarised light, field of view 1 mm |
 33 Staurolite Staurolite poikiloblast, in hornfels. Plane-polarised light, field of view 2 mm |
 34 Staurolite Staurolite poikiloblast, in hornfels. Polars crossed, field of view 2 mm |
 35 Chloritoid Chloritoid, in schist. Plane-polarised light, field of view 2 mm |
 36 Chloritoid Chloritoid, in schist. Plane-polarised light, field of view 2.5 mm |
 37 Chloritoid Chloritoid, in schist, showing lamellar twinning and anomalous interference colours. Polars crossed, field of view 2.5 mm |
 38 Sapphirine Sapphirine (blue), with spinel, phlogopite and enstatite in Mg-Al-rich granulite. Plane-polarised light, field of view 2.5 mm |
 39 Clinozoisite Epidote group: Clinozoisite, showing anomalous interference colours. Polars crossed, field of view 1 mm |
 40 Clinozoisite Epidote group: Clinozoisite, poikiloblast in eclogite. Plane-polarised light, field of view 2.5 mm |
 41 Clinozoisite Epidote group: Clinozoisite, poikiloblast in eclogite, showing zoned birefringence (core more Fe-rich). Polars crossed, field of view 2.5 mm |
 42 Epidote Epidote in calc-silicate marble. Plane-polarised light, field of view 2.5 mm |
 43 Epidote Epidote in calc-silicate marble. Polars crossed, field of view 2.5 mm |
 44 Zoisite Epidote group: Zoisite, in high-pressure gneiss. Plane-polarised light, field of view 1.25 mm |
 45 Zoisite Epidote group: Zoisite, showing anomalous blue interference colours and narrow rim of clinozoisite. Polars crossed, field of view 1.25 mm |
 46 Piemontite Epidote group: Piemontite, in manganiferous metachert. Plane-polarised light, field of view 1 mm |
 47 Piemontite Epidote group: Piemontite, in manganiferous metachert. Polars crossed, field of view 1 mm |
 48 Lawsonite Lawsonite, pale brownish, with glaucophane, chlorite and white mica, in blueschist. Plane-polarised light, field of view 1 mm |
 49 Lawsonite Lawsonite, in blueschist. Polars crossed, field of view 1 mm |
 50 Cordierite Cordierite, granoblastic-polygonal texture, granulite facies. Polars crossed, field of view 5 mm |
 51 Cordierite Cordierite, poikiloblastic, in low-P spotted schist (Buchan type). Plane-polarised light, field of view 5 mm |
 52 Cordierite Cordierite, poikiloblastic, in low-P spotted schist (Buchan type). Polars crossed, field of view 5 mm |
 53 Cordierite Cordierite, showing complex sector twinning, in spotted hornfels. Polars crossed, field of view 2.5 mm |
 54 Cordierite Cordierite (colourless), in aluminous hornfels. Plane-polarised light, field of view 2.5 mm |
 55 Cordierite Cordierite, in aluminous hornfels. Polars crossed, field of view 2.5 mm |
 56 Cordierite Cordierite, with sillimanite inclusions, in granulite-facies metapelitic gneiss. Plane-polarised light, field of view 5 mm |
 57 Cordierite Cordierite, with sillimanite inclusions, in granulite-facies metapelitic gneiss. Polars crossed, field of view 5 mm |
 58 Osumilite Osumilite (double-ring silicate resembling cordierite, diagnostic of ultrahigh-T metamorphism), with feldspar and orthopyroxene. Note yellow 'pinite' alteration. Plane-polarised light, field of view 2.5 mm |
 59 Osumilite Osumilite (double-ring silicate resembling cordierite, diagnostic of ultrahigh-T metamorphism), with feldspar and orthopyroxene. Note near-isotropic 'pinite' alteration at margins. Polars crossed, field of view 2.5 mm |
 60 Clino- and Orthopyroxene Pyroxene: clinopyroxene (green) and orthopyroxene (pink) in granulite-facies tonalitic gneiss. Plane-polarised light, field of view 5 mm |
 61 Clino- and Orthopyroxene Pyroxene: clinopyroxene (mostly second-order colours) and orthopyroxene (first-order colours) in granulite-facies tonalitic gneiss. Polars crossed, field of view 5 mm |
 62 Clinopyroxene Pyroxene: clinopyroxene (diopside/augite), showing exsolution lamellae, in granulite-facies metabasite. Polars crossed, field of view 5 mm |
 63 Diopside Pyroxene: diopside, in calc-silicate marble. Plane-polarised light, field of view 1 mm |
 64 Diopside Pyroxene: diopside, in calc-silicate marble. Polars crossed, field of view 1 mm |
 65 Enstatite Pyroxene: enstatite (pale pinks and greens) with olivine (colourless, upper right) and pale olive hornblende, in granulite-facies ultrabasic gneiss. Plane-polarised light, field of view 5 mm |
 66 Enstatite Pyroxene: enstatite (first-order colours) with olivine (high colours, upper right), in granulite-facies ultrabasic gneiss. Polars crossed, field of view 5 mm |
 67 Enstatite Pyroxene: aluminous enstatite, poikiloblast in granulite-facies cordierite gneiss. Plane-polarised light, width of view 19 mm |
 68 Jadeite Pyroxene: jadeite (altered at rim and in fractures) in eclogite-facies meta-granite. Plane-polarised light, field of view 2.5 mm |
 69 Jadeite Pyroxene: jadeite (altered at rim and in fractures) in eclogite-facies meta-granite. Polars crossed, field of view 2.5 mm |
 70 Omphacite Pyroxene: omphacite, with symplectitic reaction rim, in eclogite. Plane-polarised light, field of view 1.5 mm |
 71 Omphacite Pyroxene: omphacite, with symplectitic reaction rim, in eclogite. Polars crossed, field of view 1.5 mm |
 72 Omphacite Pyroxene: omphacite, aggregate of crystals, with garnet, white mica and glaucophane in eclogite. Plane-polarised light, field of view 2.5 mm |
 73 Omphacite Pyroxene: omphacite, aggregate of crystals, with garnet, white mica and glaucophane in eclogite. Polars crossed, field of view 2.5 mm |
 74 Wollastonite Wollastonite, showing three cleavages on basal section. Plane-polarised light, field of view 2.5 mm |
 75 Wollastonite Wollastonite, showing three cleavages and high birefringence on basal section. Polars crossed, field of view 2.5 mm |
 76 Tremolite Amphibole: tremolite in marble. Plane-polarised light, field of view 2.5 mm |
 77 Tremolite Amphibole: tremolite in marble. Polars crossed, field of view 2.5 mm |
 78 Actinolite Amphibole: actinolite (pale green) as core of composite crystal surrounded by triple-chain silicate, in ultrabasic gneiss. Plane-polarised light, field of view 1.5 mm |
 79 Actinolite Amphibole: actinolite (magenta interference colour) as core of composite crystal surrounded by triple-chain silicate (blue), in ultrabasic gneiss. Polars crossed, field of view 1.5 mm |
 80 Hornblende Amphibole: blue-green hornblende, in various orientations showing different pleochroism colours, in garnet-grade metagabbro. Plane-polarised light, field of view 4 mm |
 81 Hornblende Amphibole: blue-green hornblende, in garnet-grade metagabbro. Note low-order interference colours, partly masked by body colour. Polars crossed, field of view 4 mm |
 82 Hornblende Amphibole: hornblende, in foliated amphibolite. Plane-polarised light, field of view 2 mm |
 83 Hornblende Amphibole: hornblende, in amphibolite derived from gabbro. Plane-polarised light, field of view 2 mm |
 84 Hornblende Amphibole: brown hornblende in high-temperature amphibolite. Note greenish rims resulting from retrograde change. Plane-polarised light, field of view 4 mm |
 85 Anthophyllite Amphibole: anthophyllite, in contact-metamorphosed rock. Plane-polarised light, field of view 2 mm |
 86 Anthophyllite Amphibole: anthophyllite, in contact-metamorphosed rock. Polars crossed, field of view 2 mm |
 87 Gedrite Amphibole: gedrite (Na-Al anthophyllite), in cordierite-gedrite gneiss. Plane-polarised light, field of view 6 mm |
 88 Gedrite Amphibole: gedrite (Na-Al anthophyllite), in cordierite-gedrite gneiss. Polars crossed, field of view 6 mm |
 89 Glaucophane Amphibole: glaucophane, in blueschist. Plane-polarised light, prisms parallel to polariser. Plane-polarised light, field of view 2.5 mm |
 90 Glaucophane Amphibole: glaucophane, in blueschist. Plane-polarised light, prisms normal to polariser. Plane-polarised light, field of view 2.5 mm |
 91 Glaucophane (crossite) Amphibole: crossite (glaucophane with Fe3+), in blueschist. Plane-polarised light, field of view 2.5 mm |
 92 Glaucophane (crossite) Amphibole: crossite (glaucophane with Fe3+), in metachert. Plane-polarised light, field of view 2.5 mm |
 93 Glaucophane (crossite) Amphibole: crossite (glaucophane with Fe3+), in metachert. Polars crossed, field of view 2.5 mm |
 94 Muscovite Muscovite (colourless), with biotite, garnet and kyanite in schist. Plane-polarised light, field of view 6 mm |
 95 Muscovite Muscovite (bright colours), with biotite, garnet and kyanite in schist. Polars crossed, field of view 6 mm |
 96 Muscovite Muscovite, in phyllite. Polars crossed, field of view 2.5 mm |
 97 Muscovite Muscovite (randomly-oriented crystals) in aluminous granofels. Polars crossed, field of view 2.5 mm |
 98 Muscovite (phengite) Muscovite var. phengite, three grains in different orientations, in eclogite. Plane-polarised light, field of view 1 mm |
 99 Muscovite (phengite) Muscovite var. phengite, three grains in different orientations, in eclogite. Central grain will give a uniaxial figure (3T polytype). Polars crossed, field of view 1 mm |
 100 Biotite Biotite, poikiloblast in biotite-grade schist (greenschist facies). Plane-polarised light, field of view 2 mm |
 101 Biotite Biotite, in high-grade gneiss with cordierite and quartz. Plane-polarised light, field of view 2.5 mm |
 102 Biotite Biotite, in high-grade gneiss with cordierite and quartz. Polars crossed, field of view 2.5 mm |
 103 Phlogopite Phlogopite (almost colourless) with calcite and forsterite in marble. Plane-polarised light, field of view 2.5 mm |
 104 Phlogopite Phlogopite, with calcite and forsterite in marble. Polars crossed, field of view 2.5 mm |
 105 Stilpnomelane Stilpnomelane (brown), in metabasic greenschist. Plane-polarised light, field of view 1 mm |
 106 Stilpnomelane Stilpnomelane (brown, high birefringence), in metabasic greenschist. Polars crossed, field of view 1 mm |
 107 Talc Talc, in metasomatised peridotite. Polars crossed, field of view 3.5 mm |
 108 Chlorite Chlorite, cluster of green flakes in polymetamorphic gneiss. Plane-polarised light, field of view 3.5 mm |
 109 Chlorite Chlorite, microfolded aggregate with albite and epidote in greenschist. Plane-polarised light, field of view 1.5 mm |
 110 Chlorite Chlorite, microfolded aggregate with albite and epidote in greenschist. Note purplish-brown anomalous interference colour. Polars crossed, field of view 1.5 mm |
 111 Chlorite Chlorite, colourless Mg-chlorite with spinel, in forsterite marble. Plane-polarised light, field of view 2 mm |
 112 Chlorite Chlorite, Mg-chlorite with spinel, in forsterite marble. Note bright first-order white interference colour. Polars crossed, field of view 2 mm |
 113 Serpentine Serpentine, replacing forsterite in marble. Plane-polarised light, field of view 2.5 mm |
 114 Serpentine Serpentine, replacing forsterite in marble. Polars crossed, field of view 2.5 mm |
 115 Prehnite Prehnite, radiating birefringent blades filling an alteration vein in amphibolite. Polars crossed, field of view 1.5 mm |
 116 Feldspar: Albite Albite, porphyroblast with graphitic inclusion trails in low-grade mica schist. Polars crossed, field of view 2.5 mm |
 117 Feldspar: Albite Albite, poikiloblast in metabasic greenschist. Plane-polarised light, field of view 1 mm |
 118 Feldspar: Albite Albite, poikiloblast in metabasic greenschist. Polars crossed, field of view 1 mm |
 119 Feldspar: Microcline Microcline (low relief), in calc-silicate marble with calcite and epidote. Plane-polarised light, field of view 1 mm |
 120 Feldspar: Microcline Microcline (with 'tartan' twinning), in calc-silicate marble with calcite and epidote. Polars crossed, field of view 1 mm |
 121 Quartz Quartz, granoblastic aggregate with muscovite in siliceous schist. Polars crossed, field of view 2.5 mm |
 122 Quartz Quartz, partly recrystallised vein stringer in schist, Polars crossed, field of view 5 mm |
 123 Coesite Coesite, with reaction rim of quartz, as inclusion in omphacite. Plane-polarised light, field of view 0.8 mm |
 124 Coesite Coesite, with reaction rim of quartz, as inclusion in omphacite. Polars crossed, field of view 0.8 mm |
 125 Corundum Corundum, with reaction rims of spinel (green), sapphirine (blue) and kornerupine (pale grey-blue) in aluminous phlogopite gneiss. Plane-polarised light, field of view 6 mm |
 126 Corundum Corundum (first-order pale yellow), with reaction rims of spinel (isotropic), sapphirine and kornerupine (both low-order grey) in aluminous phlogopite gneiss. Polars crossed, field of view 6 mm |
 127 Rutile Rutile, large grain in metabasic eclogite. Plane-polarised light, field of view 1 mm |
 128 Spinel Spinel (sensu stricto, i.e. Mg-Al spinel) in marble, with partial alteration to Mg-chlorite. Plane-polarised light, field of view 2 mm |
 129 Spinel Spinel (sensu stricto, i.e. Mg-Al spinel), isotropic, in marble, with partial alteration to Mg-chlorite (white). Polars crossed, field of view 2 mm |
 130 Spinel: Hercynite Hercynite (green Fe-Al spinel) with fine internal precipitate of opaque magnetite and reaction rims of cordierite and garnet, in ultrahigh temperature metapelitic gneiss. Plane-polarised light, field of view 1 mm |
 131 Brucite Brucite, pseudomorphs after periclase, in contact-metamorphosed marble. Plane-polarised light, field of view 1.3 mm |
 132 Brucite Brucite, pseudomorphs after periclase, in contact-metamorphosed marble. Polars crossed, field of view 1.3 mm |
 133 Calcite Calcite, with narrow twin lamellae, in marble. Plane-polarised light, field of view 1 mm |
 134 Calcite Calcite, with very high interference colours and showing narrow twin lamellae, in marble. Polars crossed, field of view 1 mm |
 135 Dolomite Dolomite, in high-pressure schist. Plane-polarised light, field of view 2.5 mm |
 136 Dolomite Dolomite, in high-pressure schist. Polars crossed, field of view 2.5 mm |
 137 Magnesite Magnesite, in magnesite-talc rock (metasomatised peridotite). Plane-polarised light, field of view 3.5 mm |
 138 Magnesite Magnesite, in magnesite-talc rock (metasomatised peridotite). Polars crossed, field of view 3.5 mm |
The sequence of minerals here follows that of Deer, Howie & Zussman, i.e. ortho- and ring silicates first, followed by chain silicates, sheet silicates, framework silicates, and finally non-silicates.
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