Orthogneiss, light micrograph
Migmatite, light micrograph
Paragneiss, light micrograph
Migmatite
Amphibolite, light micrograph
Garnet mica schist thin cut, polarised light micrograph
Gneiss with garnet, light micrograph
Forbach granite, light micrograph
Two-mica granite
Forbach granite
Granite, light micrograph
Granodiorite, light micrograph
Mica schist folds, light micrograph
Granite, polarised light micrograph
Aplite, polarised light micrograph
Granite
Kimberlite rock, light micrograph
Snowball garnet, light micrograph
Quartz phyllite, light micrograph
Aplite, light micrograph
Brixen granite, light micrograph
Val Gardena sandstone, light micrograph
Rhyolite, light micrograph
Kelephytic corona, light micrograph
Lherzolite rock, light micrograph
Eclogite rock, light micrograph
Mica schist folds, polarised light LM
Basalt, light micrograph
Garnets in micaschist, light micrograph
Gneiss with garnet
Gabbro rock, light micrograph
Fuchsite mineral stone
Granodiorite rock, light micrograph
Staurolite crystal, light micrograph
Mica in quartz, light micrograph
Rhyolite mountain, Iceland
Melaphyr rock, light micrograph
Kentallenite - Ballaculish, Scotland, LM
Sample of muscovite
Aggregate of muscovite crystals
Trachyte. polarised light micrograph
Garnet
Peridotite
Garnet in peridotite
Muscovite and feldspar
Rhyolitic tuff, polarised light micrograph
Jasper, polarised light micrograph
Andesite rock, light micrograph
Garnet gemstone
Peridotite, polarised light micrograph
Granite rock, light micrograph
Polished specimen of muscovite
Brixen granite
Granodiorite
Biotite
Biotite, Tyringham, Massachusetts, USA
Gneiss, light micrograph
Garnet crystals on schist
Wollastonite with kolophonite
Almandine crystals in schist
Almandine
Folded strata in gneiss rock
Muscovite Mica, Ontario, Canada
Muscovite Mica
Muscovite Star Mica
Muscovite, light micrograph
Dolerite rock crystals, polarised LM
Banded gneiss
Quartz nodule, polarised light micrograph
Aquamarine in muscovite matrix
Aquamarine in muscovite matrix, close
Uvarovite crystals
Quartz mineral stone, light micrograph
Sample of biotite
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
Grossular garnet crystals on rock surface
Quartz Diorite, LM of thin section
Quartzite mineral, light micrograph
Rock strain fringes, light micrograph
Quartz phyllite
Garnet.
Precious gemstones
Garnet gemstones
Arkose, polarised light micrograph
Polished sphere of ocean jasper
Muscovite II
LM of a thin section of gabbro rock
Green Tourmaline in Muscovite, Maine
Aquamarine crystals
Val Gardena sandstone
Staurolite phenocrysts, polarised light micrograph
Lasa marble, light micrograph
Rare bright green Uvarovite Garnet
Muscovite mineral sample
Tabular muscovite crystals and apatite
Muscovite crystals in rock groundmass
Geode, thin section micrograph
Rhyolite
Siberian agate, polarised light micrograph
Polarised LM of thin section of gabbro
Rubellite Tourmaline in Lepidolite Mica
Pink tourmaline crystals growing on mica
Crystals of green toumaline and pink lepidolite
Moss agate, polarised light micrograph
Hornblende-biotite granite
Agate. polarised light micrograph