Mineral In Metamorphic Rock

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Jasper (Iron-stained Chert)

Silicon Dioxide (SiO2)

Quartzite River Rock

Metamorphic Rock (Recrystallized Quartz - SiO2)

Eclogite with Garnet

Eclogite (Omphacite-Garnet Metamorphic Rock)

Eclogite

Eclogite (Omphacite-Garnet Metamorphic Rock)

Phyllite

Phyllite (Intermediate grade metamorphic rock)

Serpentinite

Serpentinite (composed largely of serpentine group minerals including Antigorite, Lizardite, and Chrysotile, (Mg,Fe)3Si2O5(OH)4)

Quartz with Host Rock Matrix

Silicon Dioxide (SiO2)

Slate

Foliated Metamorphic Rock (composed primarily of Quartz, Muscovite, and Illite)

Rhodonite

Rhodonite (MnSiO3)

Serpentinite (likely serpentine-rich metamorphic rock)

Serpentine-group minerals, chiefly antigorite, lizardite, and/or chrysotile; commonly derived from altered peridotite

Quartzite

Metamorphic Quartzite (SiO2)

Mica Group Minerals

There isn't a single scientific name as 'Mica' refers to a group of phyllosilicate minerals. Common scientific names include Muscovite (KAl₂ (AlSi₃O₁₀)(OH)₂), Biotite (K(Mg,Fe)₃AlSi₃O₁₀(OH)₂), Phlogopite (KMg₃AlSi₃O₁₀(OH)₂), and Lepidolite (K(Li,Al)₃(Al,Si,Rb)₄O₁₀(F,OH)₂).

Agate with Fossil/Inclusion

Silicon Dioxide (SiO2) with chalcedony and potential fossil inclusion

Greenstone

Metabasalt / Greenschist facies rock

Gneiss

Gneiss (pronounced 'nice')

Unakite

Altered Granite (Epidote-bearing Granitic Rock)

Quartzite

Quartzite (composed primarily of Silica, SiO2)

Quartz-rich metamorphic rock (likely quartzite)

Quartzite, dominantly crystalline SiO₂, with probable iron-oxide staining and minor feldspar/mica

Quartz-rich metamorphic rock, likely quartzite

Quartzite; predominantly quartz (SiO₂), with minor feldspar, mica, and iron-oxide staining

Serpentine / Antigorite

Mg3Si2O5(OH)4 (Serpentine Group)

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)

Milky Quartz with Mica

Silicon Dioxide (SiO2) with Muscovite Mica [KAl2(AlSi3O10)(OH)2]

Pink Granite Gneiss

Granitic Gneiss

Quartz-rich rock, possibly milky quartz or quartzite

Quartz (SiO₂), potentially quartzite if the grainy texture is rock-wide

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)

Magnetite

Magnetite (Fe3O4)

Quartzite with Quartz Vein

Quartzite (primarily SiO2)

Quartzite

Quartzite (primarily SiO2)

Muscovite Mica

Muscovite (Potassium Mica) KAl2(AlSi3O10)(OH)2

Quartzite

Quartzite (SiO2)

Rough Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Unakite

Epidotized Granite

Greenstone

Greenschist / Greenstone (Epimetamorphic Rock)

Muscovite Mica

KAl2(AlSi3O10)(OH)2

Quartzite Pebble

Quartzite (primarily SiO2)

Quartzite

Quartzite (SiO2)

Wishing Stone (Veined Pebble)

Quartz-veined Metasedimentary Pebble

Granodiorite (Gneissic texture)

Granodiorite (containing Quartz SiO2, Plagioclase Feldspar, and Biotite)

Tumbled quartz pebble

Quartz (SiO₂), likely milky or fractured rock crystal

Quartzite

Quartzite (Primary mineral: Silicon Dioxide, SiO2)