Yellow Quartzite (River Pebble)

Quartzite (SiO2)

metamorphic

Jasper

Silicon dioxide (SiO2) with impurities

sedimentary

Quartz (Water-worn pebble)

Silicon Dioxide (SiO2)

mineral

Orange Quartzite (River Pebble)

Quartzite (primarily SiO2)

metamorphic

Chalcedony (Agate/Carnelian type)

Silicon Dioxide (SiO2)

mineral

Yellow Chalcedony (Agate)

Silicon Dioxide (SiO2)

mineral

Amber

Succinite (C10H16O)

mineral

Jasper

Jasper (Silicon Dioxide, SiO2)

sedimentary

Carnelian (Chalcedony)

Silicon Dioxide (SiO2)

mineral

Carnelian

Carnelian (Silicon Dioxide, SiO2)

mineral

Sunstone

Oligoclase (Plagioclase Feldspar subclass), (Ca,Na)(Al,Si)4O8

mineral

Sunstone

Aventurine Feldspar (composition: (Ca,Na)((Al,Si)2Si2O8))

mineral

Orange Quartzite / River Pebble

Quartzite (primarily SiO2)

metamorphic

Carnelian

Carnelian (Silicon Dioxide, SiO2)

mineral

Chalcedony (Agate)

Silicon Dioxide (SiO2)

mineral

Chert (Red/Brown Variety)

Microcrystalline quartz (SiO2)

sedimentary

Carnelian (Orange Chalcedony)

Silicon Dioxide (SiO2) with iron oxide impurities

mineral

Yellow Jasper

Jasper (Silicon Dioxide, SiO2)

sedimentary

Yellow Quartz (Chalcedony/Citrine Pebble)

Silicon Dioxide (SiO2)

mineral

Carnelian

Carnelian (Silicon Dioxide - SiO2 with iron oxide impurities)

mineral

Chert (Yellow Jasper/River Pebble)

Microcrystalline Quartz (SiO2)

sedimentary

Milky Quartz

Silicon Dioxide (SiO2)

mineral

Jasper

Agate/Jasper (Microcrystalline Quartz, SiO2)

sedimentary

Jasper

Silicon dioxide (SiO2)

sedimentary

Orange Quartzite (River Pebble)

Quartzite (primarily SiO2)

metamorphic

Yellow Jasper

Silicon Dioxide (SiO2) with Iron inclusions

sedimentary

Quartzite

Quartzite (primarily SiO2)

metamorphic

Yellow Aventurine

Silicon Dioxide (SiO2) with inclusions

mineral

Red Jasper

Jasper (Silicon Dioxide with Iron Oxide impurities, SiO2)

sedimentary

Orange Quartzite (Tumble-polished)

Quartzite (primarily SiO2)

metamorphic

Chert (specifically Yellow or Brown Chert / Jasper)

Silicon Dioxide (SiO2)

sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron hydroxides (Goethite/Limonite)

sedimentary

Jasper (Yellow/Brown variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

sedimentary

Jasper

Silicon dioxide (SiO2) with iron oxide impurities

sedimentary

Green Jasper

Jasper (Silicates, SiO2)

sedimentary

Banded Rhyolite (likely Green Jasper/Agate variety)

Silicon Dioxide (SiO2) with mineral inclusions

igneous

Lake Superior Agate

Banded Chalcedony (Silicon Dioxide / SiO2)

mineral

Dyed Agate

Silicon Dioxide (SiO2) - Variety Agate / Chalcedony

mineral

Green Aventurine

Silicon Dioxide (Quartz) with inclusions of Fuchsite mica (K(Al,Cr)2(AlSi3O10)(OH)2)

metamorphic

Jasper

Jasper (Silicate - SiO2)

sedimentary

Blue Dyed Agate

Silicon Dioxide (SiO2) with artificial pigment

mineral

Green Banded Agate

Agate (Variety of Chalcedony/Quartz), SiO2

mineral