Small white mineral fragment
Indeterminate; possibly quartz, calcite, or feldspar
mineral
Category
Mineral With Metamorphic Or Igneous Host
Browse mineral with metamorphic or igneous host specimens identified by the Rock Identifier community.
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Gold-bearing Quartz Ore
Auriferous Quartz (SiO2 + Au)
metamorphic
Milky quartz–rich rock
Quartz (SiO₂), likely massive milky quartz with minor dark inclusions
mineral
Garnet
Garnet (X3Y2(SiO4)3)
mineral
Black Spinel
Magnesium Aluminum Oxide (MgAl2O4)
mineral
Quartz (Milky Quartz/Citrine Type)
Silicon Dioxide (SiO2)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) vein cutting through host rock
mineral
Green-and-gold apatite-bearing rock, possibly epidote skarn
Apatite-group mineral, commonly fluorapatite (Ca₅(PO₄)₃F), with probable epidote and quartz; exact identification requires testing
mineral
Muscovite Mica
Muscovite / KAl2(AlSi3O10)(OH)2
mineral
Epidote in Matrix
Epidote; Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (or Chalcedony) Specimen
Silicon Dioxide (SiO2)
mineral
Raw Garnet (Hessonite / Spessartine)
Silicate mineral group (X3Y2(SiO4)3)
gemstone
Quartz Vein Rock
Silicon Dioxide (SiO2)
mineral
Gold Quartz (Auriferous Quartz)
Silicon Dioxide (SiO2) with trace Gold (Au) and Iron Oxides
mineral
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon dioxide (SiO2)
mineral
Corundum (Sapphire in Host Rock)
Corundum (Aluminum Oxide, Al2O3)
mineral
Quartz with Sulfide Inclusions
Silicon Dioxide (SiO2) with metallic mineral inclusions
mineral
Blue Aventurine
Quartz (SiO2) with inclusions
mineral
Quartz Druze on Matrix
Silicon Dioxide (SiO2)
mineral
Prehnite with Epidote and Quartz
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Tiny amber-colored crystal fragment
Indeterminate; possibly quartz, feldspar, mica, or a sulfide mineral
mineral
Quartz Vein (Iron-stained)
Silicon Dioxide (SiO2) with limonite/hematite staining
mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within metamorphic/igneous matrix
igneous/metamorphic
Chrysocolla (on host rock)
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Copper silicate)
mineral
Garnet (likely Almandine or Pyrope)
Garnet (Group Name), Fe3Al2(SiO4)3 or Mg3Al2(SiO4)3
mineral
Mica-rich Pegmatite
Pegmatite (rich in Muscovite and Biotite)
igneous
Blue Quartz (Aventurine)
Silicon Dioxide (SiO2) with fibrous inclusions (commonly Dumortierite)
mineral
Magnetite (Lodestone)
Iron(II,III) oxide (Fe3O4)
mineral
Raw greenish crystal/mineral fragment
Uncertain from image; possibly olivine (forsterite-rich), epidote, or green tourmaline
mineral
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(F,OH)2
mineral
Amethyst (Tumbled)
Silicon Dioxide (SiO2) with iron impurities
mineral
Green Aventurine (Carved)
Silicon Dioxide (Quartz variant) with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O(OH)2)
mineral
Quartz (Druzy) on Matrix
Silicon Dioxide (SiO2)
mineral
Emerald in Matrix (Quartz/Schist)
Beryl (Be₃Al₂Si₆O₁₈) with Chromium/Vanadium impurities
mineral
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Pegmatite (Granitic Pegmatite with Quartz, Mica, and Tourmaline/Biotite)
Pegmatite
igneous
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Quartz Veined Mudstone
Metasedimentary rock with Quartz (SiO2) veins
metamorphic