Migmatite, light micrograph
Migmatite
Paragneiss, light micrograph
Orthogneiss, light micrograph
Forbach granite, light micrograph
Amphibolite, light micrograph
Forbach granite
Two-mica granite
Garnet mica schist thin cut, polarised light micrograph
Gneiss with garnet, light micrograph
Granite, polarised light micrograph
Aplite, polarised light micrograph
Mica schist folds, light micrograph
Granite
Aplite, light micrograph
Brixen granite, light micrograph
Granite, light micrograph
Granodiorite, light micrograph
Val Gardena sandstone, light micrograph
Gneiss with garnet
Basalt, light micrograph
Snowball garnet, light micrograph
Kimberlite rock, light micrograph
Garnets in micaschist, light micrograph
Mica schist folds, polarised light LM
Quartz phyllite, light micrograph
Rhyolite, light micrograph
Sample of muscovite
Mica in quartz, light micrograph
Kelephytic corona, light micrograph
Lherzolite rock, light micrograph
Eclogite rock, light micrograph
Fuchsite mineral stone
Muscovite and feldspar
Aggregate of muscovite crystals
Rhyolite mountain, Iceland
Garnet gemstone
Almandine
Garnet crystals on schist
Wollastonite with kolophonite
Almandine crystals in schist
Garnet
Peridotite
Garnet in peridotite
Trachyte. polarised light micrograph
Folded strata in gneiss rock
Brixen granite
Granodiorite
Val Gardena sandstone
Granodiorite rock, light micrograph
Biotite
Biotite, Tyringham, Massachusetts, USA
Polished specimen of muscovite
Gabbro microcrystals, light micrograph
Muscovite Mica, Ontario, Canada
Muscovite Mica
Muscovite Star Mica
Muscovite, light micrograph
Staurolite crystal, light micrograph
Banded gneiss
Almandine garnet in mica schist
Uvarovite crystals
Grossular garnet crystals on rock surface
Andradite crystals
Almandine mineral sample
Pyrope sand
Garnet-bearing rock
Clinochlore with garnets
Uvarovite garnet crystals
Grossular crystals in host rock
Spessartine garnet
Metamorphic rock
Grossular dodecahedral crystal
Andradite mineral
Demantoid
Slate waste
Staurolite phenocrysts, polarised light micrograph
Kentallenite - Ballaculish, Scotland, LM
Rare bright green Uvarovite Garnet
Paragneiss
Quartz phyllite
Garnet.
Precious gemstones
Garnet gemstones
Disthene mineral, light micrograph
Gneiss, light micrograph
Sample of biotite
Quartz Diorite, LM of thin section
Rhyolitic tuff, polarised light micrograph
Gabbro rock, light micrograph
Dolerite rock crystals, polarised LM
Tabular muscovite crystals and apatite
Muscovite crystals in rock groundmass
Muscovite mineral sample
Anatextite gneiss
Rhyolite
LM of a thin section of gabbro rock
Jasper, polarised light micrograph
Muscovite II
Aquamarine in muscovite matrix, close
Grossular
Hessonite
Almandine crystals
Gemstones and light dispersion
Quartz nodule, polarised light micrograph
Hornblende-biotite granite
Aquamarine in muscovite matrix
Melaphyr rock, light micrograph
Garnet gem
Garnet in Schist
Kyanite mineral
Cut Pyrope gemstone
Muscovite, polarised light micrograph
Andesite rock, light micrograph
Aquamarine and muscovite
Aquamarine in muscovite
Aquamarine on muscovite