Goldstone (Red)
Aventurine Glass
Man-made material (Simulated Mineral)
Category
Man Made Object (Metalwork)
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Blue Goldstone
Aventurine Glass (Silicon Dioxide with metal inclusions)
man-made glass mineral simulant
Diamond Plate (Steel)
Alloyed Carbon Steel or Aluminum with 'Durbar' pattern
not a rock (Man-made industrial metal)
Sea Glass (Frosted Glass)
Amorphous Silica (SiO2) with various additives
Man-made material (Anthropogenic 'mineraloid')
Iron Slag
Ferrous slag (primarily silicates and oxides of calcium, iron, and magnesium)
Anthropogenic (Man-made industrial byproduct)
Asphalt Chunk (with aggregate)
Bituminous concrete / Anthropogenic conglomerate
sedimentary (anthropogenic/man-made conglomerate)
Green Aura Quartz (Titanium treated Kyanite or Quartz)
Silicon Dioxide (SiO2) or Aluminum Silicate (Al2SiO5) with Titanium/Metal Oxide coating
mineral (man-made aura treatment)
Slag
Ferrous Slag (Siliceous industrial waste)
Anthropogenic (Man-made industrial byproduct)
Hag Stone (Flint with natural hole)
Silicon Dioxide (SiO2) - Nodular Chert / Flint
sedimentary
Coquina
Coquina (Bioclastic Limestone)
sedimentary
Optical Calcite
Calcium Carbonate (CaCO3)
mineral
Chert (or Flint)
Chert (cryptocrystalline quartz), SiO2
Sedimentary
Quartz (Granular Milky Quartz fragment)
Silicon Dioxide (SiO2)
mineral
Tumbled amber-colored chalcedony or jasper
Microcrystalline quartz (SiO₂), likely iron-stained chalcedony/jasper
mineral
Orbicular jasper / brecciated jasper slab
Silicified volcanic rock composed mainly of microcrystalline quartz (SiO₂), with iron-oxide and possible chalcedony/agate bands
metamorphic
Green polished gemstone (likely chrysoprase or aventurine)
Chrysoprase: microcrystalline quartz, SiO₂, colored by nickel; possible aventurine quartz: SiO₂ with fuchsite mica
gemstone
Obsidian (black volcanic glass)
Obsidian; predominantly rhyolitic volcanic glass, mainly SiO₂ with minor feldspar, quartz, and iron oxides
igneous
Tumbled moss agate
Chalcedony (microcrystalline quartz, SiO₂) with moss-like inclusions
mineral
Larvikite
Larvikite (anorthosite–monzonitic feldspathic rock; commonly rich in labradorite)
igneous
Tumbled carnelian/chalcedony
Carnelian, a reddish variety of microcrystalline quartz (SiO₂)
gemstone
Polished carnelian/chalcedony agate
Microcrystalline quartz (SiO₂), chiefly chalcedony with iron-oxide coloring
mineral
Red jasper (likely polished/tumbled)
Microcrystalline quartz/chalcedony, SiO₂, colored mainly by iron oxides
mineral
Tumbled jasper or quartzite pebble
Jasper (microcrystalline quartz, SiO₂), possibly iron-stained quartzite
metamorphic
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Petrified Wood
Silicified Wood (SiO2)
fossil
Agate
Silicon dioxide (Chalcedony), SiO2
sedimentary
Tumbled jasper, likely red/brown jasper
Microcrystalline quartz (chalcedony), SiO₂, colored by iron oxides
metamorphic
Tumbled blue sodalite
Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂
mineral
Unakite
Altered Granite (Granitic Metamorphic Rock)
metamorphic
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Red jasper-like chalcedony pebble
Microcrystalline quartz (SiO₂), likely iron-stained chalcedony/jasper
mineral
Polished carnelian (reddish-brown chalcedony)
Carnelian, a microcrystalline variety of quartz (SiO₂)
gemstone
Green aventurine (likely)
Quartz variety; silicon dioxide (SiO₂) with green fuchsite mica inclusions
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Epidote
Ca2(Al, Fe)3(SiO4)3(OH)
mineral
Aventurine
Quartz (SiO2) with fuchsite inclusions
mineral
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Fluorite
Calcium Fluoride (CaF2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral