Chrysocolla on Matrix
Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Category
Mineral, Often A Rock Given Its Aggregate Nature
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Sandstone Pebble
Arenite (primarily SiO2)
sedimentary
Quartzite with Schist layers
Metamorphosed Quartz-rich Rock (Mixed Schist/Quartzite)
metamorphic
Jasper and Aquamarine (likely)
Jasper (Cryptocrystalline Quartz (SiO2)), Aquamarine (Beryl (Be3Al2Si6O18))
Sedimentary (Jasper), Mineral (Aquamarine)
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Chalcedony
Chalcedony (SiO₂)
Mineral
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Banded Calcite (Mexican Onyx)
Calcium Carbonate (CaCO3)
mineral
Milky Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
mineral
Amygdaloidal Basalt
Extrusive mafic igneous rock with amygdules
igneous
Gold Nugget / Native Gold
Native Gold (Au)
mineral
Dyed Agate
Silicon Dioxide (SiO2) with synthetic dyes
mineral
Landscape Boulder / River Rock
Granitic or Quartzite Rock
igneous
Bismuth
Bismuth (element Bi) with oxidized thin-film interference layer
mineral
Blue Goldstone
Goldstone (artificial glass)
Mineral (man-made glass, not natural)
Granite Pebbles
Granite (composed primarily of Quartz SiO2, Feldspar (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8), and Mica)
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Chert (varietal: Jasper or Flint likely, but definitive identification is difficult from image)
SiO₂ (silicon dioxide)
Sedimentary
Porphyritic Basalt or Lamprophyre
Extrusive igneous rock with visible phenocrysts
igneous
Blue Agate (Dyed)
Silicon Dioxide (SiO2)
mineral
Greywacke (likely)
Greywacke (a type of sandstone)
Sedimentary
Howlite
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Sandstone Pebble
Sandstone (Quartz-rich Arenite)
sedimentary
Chrysocolla
Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4 nH2O
mineral
Chert (Pink/Red variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Howlite
Ca2B5SiO9(OH)5 (Calcium borosilicate hydroxide)
mineral
Iron-stained Quartz
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Quartz Vein Rock
Quartz (Silicon Dioxide, SiO2)
igneous
Chrysocolla in Matrix
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
mineral
Jasper
Silicon Dioxide (Microcrystalline Quartz, SiO2)
mineral
Iron-stained Quartz
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Pink Granite
Phaneritic Felsic Intrusive Igneous Rock
igneous
Bismuth Crystal
Bismuth (Bi)
mineral
Sandstone (likely Greywacke or Siltstone variety)
Arenite / Siltstone (primarily SiO2)
sedimentary
Howlite
Howlite (Ca2B5SiO9(OH)5)
mineral
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Chrysocolla in Matrix
Hydrated copper silicate - (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Quartz fragment (Pebble)
Silicon Dioxide (SiO2)
mineral
Mixed Gravel and Pebbles
Polylithic Alluvial Aggregate
igneous, sedimentary, and metamorphic mix