Iron-stained weathered stone (tentative)
Undetermined; possibly weathered iron-rich basalt or concretion
mineral
Category
Man Made Material (Jewelry, Metal Alloy)
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Tumbled pink-and-white quartz
Quartz, silicon dioxide (SiO₂), likely rose quartz mixed with milky quartz
mineral
Blue-green turquoise-like tumbled stone
Turquoise, hydrous copper aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O
mineral
Biotite-bearing granite or granitic gneiss
Quartz–feldspar–biotite assemblage; possibly metamorphosed granite (gneiss)
igneous
Biotite-bearing granite or gneiss
Felsic granitoid; chiefly quartz, feldspar, and biotite mica
igneous
Tumbled quartz-rich agate/geode fragment
Microcrystalline quartz (SiO₂), likely chalcedony with crystalline quartz and possible iron-oxide inclusions
mineral
Weathered quartz-rich sandstone or granitic rock
Indeterminate; likely iron-stained quartz sandstone, possibly weathered granite
sedimentary
Banded gneiss pebble
Gneiss, typically quartz–feldspar–mica assemblage
metamorphic
Fluorite
Fluorite (CaF2)
mineral
Black polished/tumbled stone, likely basalt or black jasper
Most likely fine-grained basalt (plagioclase and pyroxene); appearance can also match microcrystalline quartz (black jasper)
igneous
Amber
Amber (Fossilized Tree Resin)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Strawberry Quartz (or Sunstone / Tumbled Quartz)
Silicon Dioxide (SiO2) with Hematite/Lepidocrocite inclusions
mineral
Chert (Jasper-rich)
Silicon Dioxide (SiO2)
sedimentary
Quartz Mineral
Silicon Dioxide (SiO2)
mineral
Jasper with Iron Inclusions
Silicon Dioxide (SiO2) with Hematite/Goethite
sedimentary
Chert (Yellow Jasper)
Cryptocrystalline Quartz (SiO2)
sedimentary
Picture Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Charoite
Charoite - K(Ca,Na)2Si4O10(OH,F)·H2O
metamorphic
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Chert (Yellow Jasper variant)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Peridot (Olivine)
Olivine (Magnesium Iron Silicate), (Mg,Fe)2SiO4
mineral
Green Chert
Chert (Cryptocrystalline Quartz, SiO2)
sedimentary
Amber
Succinite (C10H16O)
Organic Mineraloid
Puddingstone (Gowganda Tillite/Jasper Conglomerate)
Jasper Conglomerate (SiO2 primary composition)
sedimentary
Olivine (Peridot)
Olivine Group (Magnesium Iron Silicate), (Mg, Fe)2SiO4
mineral
Amazonite
Amazonite (KAlSi3O8, a triclinic variety of Potassium Feldspar)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Petrified Wood
Silicified Wood (primarily SiO₂)
sedimentary
Yellow Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Chert (specifically Yellow Jasper/Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Red Jasper
Silicon dioxide (SiO2) with iron inclusions
sedimentary
Sunstone
Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary
Jasper Pebble
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
sedimentary
Gowganda Tillite (Puddingstone)
Glacial Tillite (Diamictite) with Jasper inclusions
sedimentary
Chert (Yellow Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz (Rose or Milky)
Silicon Dioxide (SiO2)
mineral
Gowganda Tillite (Puddingstone)
Glacial Diamictite (Gowganda Formation)
sedimentary