Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic
Category
Sedimentary (With Some Aspects Of Mineral Replacement)
Browse sedimentary (with some aspects of mineral replacement) specimens identified by the Rock Identifier community.
Peridot
Olivine ((Mg, Fe)2SiO4)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (specifically Milky or Rose Quartz variant)
Silicon Dioxide (SiO2)
mineral
Serpentinite
Serpentinite (complex silicate minerals including Lizardite, Antigorite, and Chrysotile)
metamorphic
Pink Granite
Granite (Phaneritic Quartz-Feldspar Rock)
igneous
Milky Quartz
Silicon Dioxide (SiO2)
Mineral
Greenstone
Greenschist (containing chlorite, epidote, and actinolite)
metamorphic
Smoky Quartz
SiO2 (Silicon Dioxide)
mineral
Arsenopyrite with Quartz
Arsenopyrite (FeAsS)
mineral
Pink Thulite (Zoisite)
Ca2Al3(SiO4)3(OH) - Manganese-bearing Zoisite
mineral
Labradorite
Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8
mineral
Diamond
Diamond (Pure Carbon, C)
mineral
Peridot
Olivine (Mg, Fe)2SiO4
mineral
Pegmatite with Schorl (Black Tourmaline) and Mica
Pegmatite (complex association of NaAlSi3O8, NaFe3Al6(BO3)3Si6O18(OH)4, and KAl2(AlSi3O10)(OH,F)2)
igneous
Amazonite
Amazonite (KAlSi3O8 – a variety of Microcline, a Potassium Feldspar)
mineral
Quartz (Rock Crystal) with minor impurities
Quartz (SiO2)
Mineral
Rose Quartz
Rose Quartz (SiO2)
mineral
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
Mineral
Aquamarine
Beryl (Be3Al2Si6O18), specifically the blue-green variety
Mineral
Almandine Garnet
Almandine - Fe3Al2(SiO4)3
mineral
Peridot
Olivine (Magnesium Iron Silicate), (Mg, Fe)2SiO4
mineral
Garnet (specifically Almandine or Pyrope)
Almandine (Fe3Al2Si3O12) or Pyrope (Mg3Al2Si3O12)
mineral
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Agate
Silicon Dioxide (SiO2)
mineral
Dumortierite Quartz
Al7BO3(SiO4)3O3 (Borosilicate mineral/Quartz inclusion)
mineral
Serpentinite
Serpentinite (complex silicate minerals including lizardite, chrysotile, and antigorite: (Mg,Fe)3Si2O5(OH)4)
metamorphic
Chert (Jasper/Agate variety)
Silicon Dioxide (SiO2)
sedimentary
Basalt
Basalt (Mafic volcanic rock)
igneous
Fossiliferous Limestone (Coquina / Shell Limestone)
CaCO3 (Calcium Carbonate)
sedimentary
Unakite
Epidotized Granite
Igneous rock
Crinoid Stem Fossil
Class Crinoidea (Phylum Echinodermata), primarily Calcium Carbonate (CaCO3)
sedimentary
Peridot (Olivine)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Amber with Inclusion
Succiniferous fossil resin (C10H16O)
mineraloid
Graywacke (River Cobble)
Graywacke (Lithic Sandstone)
sedimentary
Chert (with Fossiliferous Silicification)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Granatic Pegmatite
Pegmatitic Granite
igneous
Vesicular Basalt with Xenocrysts
Mafic Igneous Plutonic/Extrusive Complex
igneous
Sandstone (Pebble)
Sandstone (arenite, arkose, wacke depending on composition)
sedimentary
Calcite
Calcite (CaCO3)
Mineral
Green Apophyllite and Stilbite on Quartz Cluster
Apophyllite-(K) (KCa4(Si8O20)(F,OH)·8H2O), Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O), Quartz (SiO2)
Mineral
Rose Quartz
Quartz (Silicon Dioxide - SiO2) with trace impurities of Titanium, Manganese, or Iron
mineral