Sedimentary (Primary) With Artificial Modification

Dyed Quartz Geode

Silicon Dioxide (SiO2) with artificial purple dye

Howlite

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Mixed rock and mineral collection

Multiple specimens; visible pieces may include quartz, calcite, agate/chalcedony, jasper, and dyed or coated materials

Asphalt concrete

Anthropogenic conglomerate

Man-made Jewelry (Metal and Glass/Plastic)

Synthetic Alloy and Amorphous Solid (SiO2/Polymer)

Conglomerate (possibly breccia)

Polymictic clastic conglomerate; rounded clasts in a dark, likely volcanic-lithic matrix

Weathered limestone or calcareous sandstone

Calcite-rich carbonate rock, predominantly CaCO₃; possibly fossiliferous limestone

Tiger's Eye Beads

Silicon dioxide with crocidolite inclusions (SiO2)

Titanium Coated Agate Geode

Silicon Dioxide (SiO2) with metallic vapor coating

Blue Agate

Silicon Dioxide (Chalcedony), SiO2

Likely basalt fragment

Basalt, a fine-grained mafic volcanic rock composed mainly of plagioclase feldspar and pyroxene, commonly with olivine

Dyed Howlite (Dyed Red)

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Rounded limestone pebble

Micritic limestone, primarily calcite (CaCO₃)

Likely chalcopyrite-bearing sulfide ore

Chalcopyrite (CuFeS₂), possibly with pyrite and secondary copper minerals

Blue Obsidian

Volcanic Glass (Amorphous)

Blue Howlite (Dyed)

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Green Banded Agate

Cryptocrystalline microcrystalline Quartz (SiO2)

Likely native metallic mineral specimen

Uncertain from photograph; possibly pyrite (FeS₂) or a sulfide-rich metallic ore

Tumbled brown jasper or chert pebble

Microcrystalline quartz (SiO₂), likely jasper/chert

Rainbow chalcopyrite (“peacock ore”)

Chalcopyrite, CuFeS₂, commonly artificially tarnished or heat-treated

Dyed turquoise-colored howlite or magnesite (likely imitation turquoise)

Howlite: Ca₂B₅SiO₉(OH)₅; magnesite: MgCO₃

Pickled Dragon Eggs (Fictional Interpretation: Purple Agate or Amethyst Geodes)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Dyed Quartz Cube

Silicon Dioxide (SiO2)

Blue Agate

Chalcedony (SiO2)

Dyed Agate Tower

Silicon dioxide (Quartz variety, SiO2)

Red Jade

Nephrite / Jadeite (dyed)

Tumbled basalt pebble

Basalt, a fine-grained mafic volcanic rock; commonly plagioclase, pyroxene, and minor olivine or magnetite

Dyed Agate

Agate (Silicon dioxide)

Crackle Agate / Dyed Quartz

SiO2 (Silicon Dioxide)

Ceramic or Polished Stone Heart (Anthropogenic Material)

Glazed Ceramic (Silicon Dioxide based coating on Alumina Silicate body) or Polished Limestone/Marble (Calcium Carbonate, CaCO3)

Tumbled quartz-rich stone, possibly druzy quartz or chalcedony

Quartz/chalcedony (SiO₂); exact identification is uncertain from the photograph

Porphyritic Basalt (likely artificially dyed or altered)

Basalt with plagioclase phenocrysts (likely treated)

Blue Agate (Dyed Chalcedony)

Silicon Dioxide (SiO2)

Dyed blue howlite or magnesite (tumbled stone)

Howlite: Ca₂B₅SiO₉(OH)₅; commonly sold dyed blue to imitate turquoise

Orange Calcite point

Calcite (Calcium Carbonate, CaCO3)

Dyed Agate

Chalcedony (SiO2)

Dyed Quartz Geode

Silicon Dioxide (SiO2) with artificial pigment

Pink Dyed Agate

Silicon Dioxide (SiO2) with synthetic pigment

Slag

Anthropogenic silicate slag

Dyed Agate

SiO2

Fossiliferous limestone

Calcitic limestone, predominantly CaCO₃ (calcite), with possible shell or coral fossils

Polished leopard jasper (likely ocean jasper)

Silicified microcrystalline quartz/chalcedony; mainly SiO₂ with iron-oxide inclusions