Moss Agate
Chalcedony (Silicon Dioxide, SiO2) with dendritic inclusions
mineral
Category
Mineral, Jewelry
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Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
White Jade
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)
gemstone
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
metamorphic
![Malachite (Malachite [Cu2CO3(OH)2]) — mineral](https://media.rockidentification.com/116d1353-1f78-44b6-839f-129c977aa9a8-thumbnail.jpg)
Malachite
Malachite [Cu2CO3(OH)2]
mineral
Rough Diamond
Carbon (C)
mineral
Orange Quartz
Silicon Dioxide (SiO2)
mineral
Green Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Green Moss Agate (Tumbled)
Silicon Dioxide (SiO2) with mineral inclusions
sedimentary
Prehnite
Prehnite (Ca2Al2Si3O10(OH)2)
mineral
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Jasper and Quartz Breccia
Silicified breccia (SiO2)
sedimentary
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sea Shell Fragment (Calcium Carbonate)
Aragonite / Calcite (CaCO3)
mineral
Obsidian
Volcanic Glass (70% or more SiO2)
igneous
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon dioxide (SiO2)
mineral
Cloudy Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Carnelian
Carnelian (SiO2 with Iron Oxide impurities)
mineral
Blue Apatite
Apatite, Ca5(PO4)3(F,Cl,OH)
mineral
Quartz Crystal Fragment
Silicon Dioxide (SiO2)
mineral
Gold Nugget
Native Gold (Au)
mineral
Gold Nugget
Native Gold (Au)
mineral
Green Quartz (Prasiolite)
Silicon Dioxide (SiO2) with trace impurities
mineral
Green Fluorite
Fluorite (Calcium Fluoride - CaF2)
mineral
Milky Quartz with Mineral Inclusions
Quartz (Silicon Dioxide, SiO2)
mineral
Multi-gemstone Quartz and Fluorite Bracelet
Silicon Dioxide (SiO2) and Calcium Fluoride (CaF2)
mineral
Tumbled banded metamorphic stone
Likely banded gneiss or migmatitic gneiss; exact identification requires testing
metamorphic
Black Sapphire
Corundum (Al2O3)
gemstone
Green Aventurine
Quartz (SiO2) with fuchsite inclusions
mineral
Aventurine
Silicon dioxide (SiO2) with inclusions
mineral
Faceted Clear Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Amber
Succinite (fossilized tree resin)
mineral
Clear Quartz
Silicon dioxide (SiO2)
mineral
Amber
Succinates (Fossilized Tree Resin)
mineraloid