Sedimentary Or Igneous (Host Environment)

Rough Quartz (likely Rose or Amethyst variety)

Silicon Dioxide (SiO2)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Sandstone (Weathered Cobble)

Clastic Sedimentary Rock (primarily SiO2)

Sandstone (Quartzose Sandstone)

Clastic sedimentary rock (primarily SiO2)

Basalt (River Stone)

Aphanitic Mafic Igneous Rock

Basalt Pebble

Basalt

Granite River Pebble

Phaneritic Granite (primarily Quartz, Feldspar, and Mica)

Porphyritic Basalt (Chinese Writing Stone/Flower Stone)

Porphyritic Basalt (primarily Plagioclase Feldspar in a Mafic groundmass)

Quartz Geode

Silicon Dioxide (SiO2)

Jasper

Jasper (Silicate - SiO2)

Basalt with Epidote/Chlorite

Amygdaloidal Basalt (SiO2 with (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH)))

Collection of Minerals and Ores

Various (e.g., Uraninite (U3O8), Carbon (C), Native Gold (Au), Hematite (Fe2O3), Galena (PbS), etc.)

Pink Granite

Phaneritic Felsic Igneous Rock (Granite)

Basalt River Pebble

Basalt

Basalt

Extrusive mafic rock (Basalt)

Rhyolitic Tuff (Breccia Type)

Rhyolitic Pyroclastic Rock (Mixed Silicates including Quartz, Feldspar, and Volcanic Glass)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Granite River Rock

Phaneritic Felsic Igneous Rock (Granite)

Malachite or Chrysocolla on Host Rock

Cu2(CO3)(OH)2 (Malachite) or (Cu,Al)2H2Si2O5(OH)4 (Chrysocolla)

Chert (Flint variety)

Chert (SiO2)

Basalt River Pebble

Aphanitic mafic volcanic rock

Basalt (Beach Pebble)

Basalt (extrusive volcanic rock)

Conglomerate (Red Sandstone variety)

Clastic Sedimentary Rock (Conglomeratic Sandstone)

Sandstone (likely Graywacke or Arkose variant)

Clastic Sedimentary Rock (Lithic Sandstone)

Sandstone (Grooved/Weathered)

Arenite (composed primarily of Quartz and Lithic fragments)

Fluorite

Fluoride (Calcium Fluoride - CaF2)

Siltstone with Weathering Crust

Siltstone (primarily SiO2 with Al2O3)

Glauconitic Sandstone (Greensand)

Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Sandstone Concretion

Clastic Sedimentary Rock (primarily SiO2 with mineral cement)

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Emerald (Tumbled Beryl)

Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities

Glauconitic Sanstone (Glauconite)

Glauconite ((K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)

Turquoise

Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) in Rhyolitic Matrix

Basalt (River Pebble)

Basalt