Garden Quartz (Phantom Quartz)
Silicon Dioxide (SiO2) with various inclusions (often Chlorite, Hematite, or Iron)
Category
Browse mineral (synthetic) specimens identified by the Rock Identifier community.
Garden Quartz (Phantom Quartz)
Silicon Dioxide (SiO2) with various inclusions (often Chlorite, Hematite, or Iron)
Red Sandstone
Arenite with Iron Oxide (Hematite) cement
Red Sandstone
Arenite (with Iron Oxide / Hematite staining)
Jasper containing epidote (Unakite-like)
Epidotized Jasper (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement (primarily SiO2 with Fe2O3/FeOOH)
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminum phosphate)
Lepidolite
K(Li,Al)3(Al,Si)4O10(F,OH)2 (Lithium-bearing phyllosilicate)
Basalt with Quartz/Zeolite Inclusions
Porphyritic Basalt (SiO2 with Aluminosilicates)
Malachite
Copper Carbonate Hydroxide [Cu2CO3(OH)2]
Red Sandstone Pebble
Arenite with Hematite (Fe2O3) cement
Red Sandstone
Arenite (with Iron Oxide pigmentation)
Chatoyant Quartz (Cat's Eye Quartz)
Silicon Dioxide (SiO2) with fibrous inclusions of Amphibole or Rutile
Calcite on Matrix
Calcium Carbonate (CaCO3)
Veined Pebble (likely a Quartz-Veined Pebble)
Pebble with Mineral Vein (e.g., Quartz Vein in a Chert/Mudstone Pebble)
Rhodochrosite
Manganese carbonate (MnCO3)
Granite Pegmatite
Phaneritic Felsic Igneous Rock (Granite)
Schist
Mica Schist
Pegmatite
Granitic Pegmatite
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic silicate with secondary mineral inclusions)
Amygdaloidal Basalt with Quartz/Calcite Inclusions
Amygdaloidal Basalt (SiO2 / CaCO3 inclusions)
Sandstone Concretion
Septarian Concretion (Nodule)
Quartz (Granular)
Silicon Dioxide (SiO2)
Quartzite with Chlorite staining
Metamorphic Quartzite (SiO2 with Chlorite inclusions)
Pegmatite
Granitic Pegmatite
Diorite
Diorite (an intrusive igneous rock)
Schist
Mica Schist
Gypsum (Wallboard/Drywall)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Garnet (Almandine)
Almandine Fe3Al2(SiO4)3
Amazonite
Amazonite (KAlSi3O8 - Microcline)
Chromite
Chromite (FeCr2O4)
Sandstone
Arenite (SiO2 based with mineral cement)
Bumblebee Jasper
Anhydrite-Aragonite mixture with Orpiment and Realgar
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Blue Apatite
Apatite group (Ca5(PO4)3(F,Cl,OH))
Gneiss (Metamorphic Cobble)
Gneiss
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
Quartz Pebble
Silicon Dioxide (SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Unakite
Epidotized Granite
Quartz Pebble
Silicon Dioxide (SiO2)