![Chlorite Phantom Quartz (Silicon Dioxide (SiO2) with Chlorite group inclusions [(Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6]) — mineral](https://media.rockidentification.com/c22a4228-12f4-4c49-b1a5-91a6d81daea2-thumbnail.jpg)
Chlorite Phantom Quartz
Silicon Dioxide (SiO2) with Chlorite group inclusions [(Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6]
mineral
Category
Mineral Side Rock
Browse mineral side rock specimens identified by the Rock Identifier community.
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Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Aquamarine on Feldspar Matrix
Beryl (Be3Al2Si6O18) with Potassium Feldspar (KAlSi3O8)
mineral
Garnet (likely Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Amethyst
Amethyst (Silicon Dioxide, SiO2)
mineral
Tourmalinated quartz crystal point
Quartz (SiO₂) with black tourmaline (schorl, NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄) inclusions
mineral
Milky quartz
Quartz, silicon dioxide (SiO₂)
mineral
Petoskey Stone (Fossilized Coral)
Hexagonaria percarinata (CaCO3)
sedimentary
Garnet (likely Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Black Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Red Garnet (likely Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Green tourmaline crystal (probable)
Elbaite tourmaline, complex borosilicate; approximate formula Na(Li,Al)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
gemstone
Amethyst Cluster
Silicon Dioxide with Iron impurities (SiO2)
mineral
Alexandrite (or Quartz with Chrysoberyl/Phenakite crystal form / Feldspar inclusions)
Chrysoberyl (BeAl2O4) or Quartz (SiO2)
mineral
Amethyst
SiO2 (Silicon Dioxide) - Purple variety of Crystalline Quartz
mineral
Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Amethyst/Smoky Quartz Cluster
Silicon Dioxide (SiO2)
mineral
Petoskey Stone
Hexagonaria percarinata (Fossilized Rugose Coral)
sedimentary
Echinoid Fossil (Sea Urchin)
Echinoidea (specifically likely Schizaster or similar genus), calcium carbonate (CaCO3)
sedimentary
Amethyst cluster
Quartz, SiO₂, violet variety (amethyst)
mineral
Quartz Crystal (specifically a milky or semi-translucent single crystal point)
Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon dioxide (SiO2) containing traces of iron and manganese
mineral
Citrine
Silicon Dioxide (SiO2)
mineral
Amethyst
Amethyst (Silicon Dioxide, SiO2 + Fe4+ impurities)
mineral
Petoskey Stone
Hexagonaria percarinata (Fossilized Rugose Coral)
sedimentary
Amethyst Cluster
Silicon Dioxide (Quartz variety: Amethyst), SiO2
mineral
Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
mineral
Amethyst (Variety of Quartz)
Silicon Dioxide (SiO2)
mineral
Garnet (Rough Almandine Crystal)
Almandine Garnet (Fe3Al2(SiO4)3)
mineral
Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Red Garnet
Pyrope-Almandine series (Mg3Al2(SiO4)3 to Fe3Al2(SiO4)3)
mineral
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Amethyst
Amethyst (Silicon Dioxide - SiO2 with Iron impurities)
mineral
Red Garnet
Pyrope-Almandine series (Mg3Al2(SiO4)3 to Fe3Al2(SiO4)3)
mineral
Iron-stained quartz crystal
Quartz (SiO₂), likely limonite/goethite inclusions or surface coating
mineral
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
mineral
Garnet (Almandine/Pyrope variety)
Silicate mineral group; typically Fe3Al2(SiO4)3 (Almandine) or Mg3Al2(SiO4)3 (Pyrope)
mineral
Almandine Garnet
Almandite (Fe3Al2(SiO4)3)
Mineral
Petoskey Stone (Fossilized Rugose Coral)
Hexagonaria percarinata (Calcium Carbonate, CaCO3)
sedimentary
Amethyst
Amethyst (Silicon Dioxide - SiO2 with ferric impurities)
mineral
Small blue-green mineral fragment, possibly apatite or beryl
Tentatively fluorapatite, Ca₅(PO₄)₃(F,Cl,OH), or beryl, Be₃Al₂Si₆O₁₈
mineral