Mineral, Often Found As A Rock (Metamorphic)

Orange Quartzite (with Iron Staining)

Quartzite (SiO2)

Grey Quartzite Pebble

Quartzite (primarily SiO2)

Quartzite (River Pebble)

Metamorphosed Quartz Sandstone (SiO2)

Quartz

Silicon Dioxide (SiO₂)

Quartzite Pebble

Metamorphic Quartz (SiO2)

Gneiss (with Quartz and Mica)

Gneiss

Quartz (likely Milky Quartz or Chalcedony)

Quartz (SiO2 - Silicon Dioxide)

Nuummite

Nuummite (Orthorhombic amphiboles: Anthophyllite and Gedrite)

Serpentine

Serpentinite (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Chert (or Flint)

Chert (cryptocrystalline quartz), SiO2

Biotite Mica

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

Iron-stained Quartzite

Recrystallized Quartz (SiO2) with Hematite/Limonite staining

Epidote

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

Mica Schist

Mica Schist (predominantly composed of Muscovite or Biotite silicates)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartzite Pebble

Quartzite (primarily SiO2)

Pebble (likely a type of sandstone or quartzite pebble)

Clastic Sediment (specifically, a rudite-sized clast). If the pebble is composed of a specific rock type, its scientific name would be that rock type (e.g., 'Quartzite pebble', 'Granite pebble', 'Chert pebble'). Given its appearance, it is likely a metamorphic quartzite pebble or a hard sandstone pebble.

Quartzite

Quartzite (SiO2)

Rhodonite in Matrix

Rhodonite (Manganese Silicate) - (Mn2+,Fe2+,Mg,Ca)SiO3

Quartzite

Quartzite (primarily SiO2)

Amazonite

K(AlSi3O8), Microcline (potassium feldspar)

Wishing Stone (Gneiss or Basalt with Quartz Vein)

Gneiss or Metabasalt (with a Quartz or Calcite intrusion)

Marble

Recrystallized Carbonate Rock (CaCO3)

Druzy Quartz on Host Rock

Silicon Dioxide (SiO2) with various iron-oxide inclusions

Magnetite

Magnetite (Fe3O4)

Sapphire

Corundum (Al₂O₃) with trace elements causing color variations.

Sapphirine in Magnesian Schist

Sapphirine: (Mg,Al)8(Al,Si)6O20

Red Quartzite

Quartzite (SiO2 with iron oxide impurities)

Gneiss (specifically Granite Gneiss)

Gneiss (High-grade Regional Metamorphic Rock)

Quartzite Pebble

Quartzite (SiO2)

Massive Quartz (Milky or Gray)

Silicon Dioxide (SiO2)

Yellow Quartzite (River Pebble)

Quartzite (primarily SiO2)

Quartzite

Quartzite (SiO2)

Rhodonite

Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn+2,Fe+2,Mg,Ca)SiO3

Noble Serpentine

Antigorite (Mg3Si2O5(OH)4)

Aventurine

Quartzite with inclusions (SiO2 containing Fuchsite chrome mica)

Iolite (Cordierite)

Cordierite (Magnesium Aluminum Silicate), Mg2Al4Si5O18

Milky Quartz (Vein Quartz)

Silicon Dioxide (SiO2)

Dragon Blood Jasper

Epidote with Pietersite or Red Jasper (Ca2Al2Fe3+[Si2O7][SiO4]O(OH))

Banded Rock (likely Quartz-rich)

Uncertain, likely a Metamorphic Rock (e.g., Gneiss or Schist) with prominent Quartz and other minerals