Mineral, Often Found As A Rock (Metamorphic)

Unakite

Epidotized Granite

Quartz Veined Rock (Likely Graywacke or Quartzite)

Silicon Dioxide (SiO2) veins in Metasedimentary matrix

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Chert (Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Jasper/Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Lapis Lazuli

Lapis Lazuli (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2

Blue Apatite

Fluorapatite / Chlorapatite [Ca5(PO4)3(F,Cl,OH)]

Chert (Siliceous Mudstone variant)

Microcrystalline quartz (SiO2)

Gneiss (specifically Granitic Gneiss)

Gneissic Metamorphic Rock

Chert (Nodule)

Silicon Dioxide (SiO2)

Quartzite with inclusions

Metamorphic Rock (Mainly SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Quartz Vein)

Silicon Dioxide (SiO2)

Epidote

Epidote (formula: Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Unakite

Unakite (Episyenite composition: Feldspar, Epidote, and Quartz)

Chert (containing Iron Oxide)

Microcrystalline Quartz (SiO2)

Magnetite / Iron Ore

Magnetite (Fe3O4)

Muscovite Mica

Muscovite (Potassium Aluminum Silicate Hydroxide Fluoride), KAl2(AlSi3O10)(OH,F)2

Epidote (Unakite-related)

Epidote (Ca2(Al,Fe)3(SiO4)3(OH))

Jasper

Jasper (Silicon Dioxide, SiO2)

Gold Ore in Quartz/Schist

Auriferous Quartz and Sulfide-bearing Schist

Ruby in Kyanite

Al2O3 (Corundum) in Al2SiO5 (Kyanite-Fuchsite-Quartz)

Yellow Chalcedony (Agate)

Silicon Dioxide (SiO2)

Unakite

Unakitized granodiorite / Quartz-Epidote-Feldspar rock

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Chert (Flint variety)

Silicon Dioxide (SiO2)

Banded Gneiss with Quartz Vein

Foliated Metamorphic Rock (Gneiss)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Milky Quartz (Common Quartz)

Quartz (Silicon Dioxide, SiO2)

Biotite (Black Mica)

Biotite - K(Mg,Fe)3(AlSi3O10)(OH)2

Laterite

Laterite (no specific mineral formula as it's a rock type)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Gneiss

Foliated Metamorphic Rock (Gneiss)

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)

Chert (varieties include Flint or Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Jasper

Silicon dioxide (SiO2) with impurities

Ruby in Zoisite (Anyolite)

Corundum var. Ruby in Zoisite (Al2O3 + (Ca2Al3(SiO4)3(OH)))

Muscovite Mica (Golden/Yellow variety)

KAl2(AlSi3O10)(F,OH)2

Chert (Iron-stained or Dark)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Yellow Quartzite Pebble

Quartzite (primarily Silicon Dioxide - SiO2)