Muscovite Mica
Muscovite (Potassium Mica) KAl2(AlSi3O10)(OH)2
Mineral
Category
Igneous Or Sedimentary
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Quartz (possibly milky quartz or quartz with inclusions)
SiO2 (Silicon Dioxide)
Mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz with Mica
SiO2 (Quartz) with Potassium aluminum silicate (Muscovite)
Mineral
Granite
Granite
Igneous
Quartz
Silicon Dioxide (SiO₂)
Mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Labradorite
Labradorite ((Ca,Na)(Al,Si)4O8)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
mineral
Granite
Granite (Felsic Plutonic Rock)
igneous
Granite
Granite (Mainly Quartz, Feldspar, and Mica)
igneous
Plagioclase Feldspar (specifically Albite/Oligoclase)
(Na,Ca)(Si,Al)4O8
mineral
Quartz (Smoky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Cloudy Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite in Quartz
Na8(Al6Si6O24)Cl2 (Sodalite) / SiO2 (Quartz)
metamorphic
André Landed Here Rock (Glacial Erratic)
Granodiorite / Diorite (compositional estimate)
igneous
Calcite
Calcite (CaCO₃)
Mineral
K2 Jasper (K2 Granite)
Azurite in Granite (Al2Cu3(CO3)2(OH)2 in NaAlSi3O8)
igneous
Pebble (likely Sandstone or Granitic Pebble)
Clastic Sediment (or specific rock type, e.g., Arenite, Granitoid Pebble)
Rock (likely Sedimentary)
Sandstone
Arenite (primarily SiO2)
sedimentary
Quartz
Silicon Dioxide (SiO2)
Mineral
Fluorite and Rose Quartz
Fluorite (CaF2), Rose Quartz (SiO2)
Mineral
Biotite Schist (likely)
Biotite Schist (rock), Biotite (mineral)
Metamorphic
Banded Gneiss (River Cobble)
Gneiss (a high-grade metamorphic rock)
metamorphic
Quartz in Host Rock
Silicon Dioxide (SiO2) in Rhyolite or Granite matrix
igneous
Sandstone Grain
Clastic Sedimentary Rock Grain (SiO2 dominated)
sedimentary
Wishing Stone (Quartz-Veined Basalt)
Amygdaloidal Basalt with Quartz (SiO2) vein
igneous
Chert Breccia
Brecciated Chert (Microcrystalline Silica)
sedimentary
Rose Quartz
Silicon Dioxide with trace inclusions of dumortierite or titanium (SiO2)
mineral
White Topaz
Aluminum Silicate Fluoride Hydroxide; Al2SiO4(F,OH)2
mineral
Shale or Slaty Mudstone
Argillaceous sedimentary rock
sedimentary
Labradorite
(Ca, Na)(Al, Si)4O8 (Plagioclase Feldspar)
mineral
Granite (weathered/river-tumbled)
Granite (Plutonic Igneous Rock)
Igneous Rock
Veined Pebble (likely a Quartz-Veined Pebble)
Pebble with Mineral Vein (e.g., Quartz Vein in a Chert/Mudstone Pebble)
Sedimentary Rock (possibly conglomerate or breccia with a quartz vein)
Biotite (Black Mica)
K(Mg,Fe)3AlSi3O10(OH,F)2
mineral
Quartz (likely macrocrystalline variety)
Quartz (SiO₂)
Mineral
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral, often found as detrital grains in sedimentary rocks
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral