Flint
SiO2 (Cryptocrystalline Quartz / Chert)
sedimentary
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Peridot
Olivine ((Mg,Fe)2SiO4)
gemstone
Larimar
Pectolite (NaCa2Si3O8(OH))
gemstone
Pumice
Pumice (volcanic glass foam)
igneous
Malachite / Copper Ore
Cu2CO3(OH)2
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Blue Celestine
Celestine (SrSO4)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Metamorphic quartz-rich rock
metamorphic
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Copper Ore (Malachite and Azurite stained rock)
Cupriferous rock containing secondary copper carbonates
mineral
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Copper Ore
Cupriferous Rock / Mixed Mineral Matrix
igneous
Copper Ore (Malachite and Azurite stained rock)
Copper-bearing rock with secondary copper carbonates
mineral
Chert (Flint)
Microcrystalline quartz (SiO2)
sedimentary
Copper Ore (Malachite and Limonite bearing rock)
Copper-bearing rock with secondary copper minerals
mineral
Granite
Felsic intrusive igneous rock
igneous
Malachite-bearing Rock
Cu2CO3(OH)2
mineral
Malachite
Copper Carbonate Hydroxide, Cu2CO3(OH)2
mineral
Copper Ore (Malachite and Limonite bearing)
Cuprite, Malachite, and Limonite mixture
mineral
Copper Ore (Malachite and Azurite on Host Rock)
Cuprite, Malachite, and Azurite dissemination in gangue
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Copper Ore (Malachite/Chrysocolla bearing)
Cupriferous rock containing secondary copper minerals like Cu2CO3(OH)2
mineral
Fossilized Shark Tooth
Chondrichthyes (Class)
fossil
Quartzite Pebble
Metamorphic Quartzite (SiO2)
metamorphic
Banded Siltstone
Banded Siltstone / Laminated Siltstone
sedimentary
Copper Ore Specimen
Cupriferous Rock / Malachite-bearing ore
mineral
Granite
Intrusive Igneous Rock
igneous
Copper Ore Specimen with Malachite
Cuprite, Malachite, and Limonite matrix
mineral
Quartzite Pebble
Metamorphic Quartzite
metamorphic
Chrysocolla
Hydrated copper silicate, (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Unakite
Altered Granite (composed of orthoclase feldspar, epidote, and quartz)
metamorphic
Unakite
Altered Granite (Granitic Metamorphic Rock)
metamorphic
Quartzite
Metamorphic Quartzite
metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Granite
Intrusive Igneous Rock
igneous
Unakite
Granitic rock composed of orthoclase, epidote, and quartz
metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Malachite-Bearing Copper Ore
Cu2CO3(OH)2 (Malachite) in host rock
mineral
River Rock
Siliciclastic rock (water-worn pebble)
sedimentary
Copper Ore / Altered Granodiorite
Cupriferous rock with silicate gangue
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary