Amygdaloidal Basalt with Zeolite/Quartz Infill
Amygdaloidal Basalt (Host: (Mg,Fe)2SiO4 / CaAl2Si2O8; Infill: SiO2 or Na2Al2Si3O10·2H2O)
igneous
Category
Mineral In A Matrix (Likely Quartz Or Feldspar)
Browse mineral in a matrix (likely quartz or feldspar) specimens identified by the Rock Identifier community.
Granite
Phaneritic Felsic Igneous Rock
igneous
Granite
Phaneritic plutonic rock (Quartz, Feldspar, Mica)
igneous
Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Ironstone (likely Ferruginous Siltstone/Sandstone)
Ferruginous sedimentary rock (FeOx-rich clastic)
sedimentary
Sandstone (Greywacke)
Arenite / Clastic Sedimentary Rock
sedimentary
Amygdaloidal Basalt
Basalt with secondary mineral infilling
igneous
Granite (weathered/river-tumbled)
Granite (Plutonic Igneous Rock)
Igneous Rock
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic silicate with secondary mineral inclusions)
Igneous
Conglomerate with Quartz Inclusions
Conglomerate (clastic sedimentary rock) with internal Quartz (SiO2)
sedimentary
Granite
Phaneritic Felsic Igneous Rock
igneous
Amygdaloidal Basalt
Amygdaloidal Basalt (with secondary mineral infilling)
igneous
Drill Core Samples (Varied Lithology)
Multi-lithological core samples (containing potential granite, marble, and phyllite/schist sequence)
igneous, sedimentary, and metamorphic
Ferruginous Quartz (Iron-Stained Quartz)
Quartz (Silicon Dioxide) with Iron Oxide inclusions (SiO2 + Fe2O3)
mineral
Amazonite
Amazonite (KAlSi3O8)
mineral
Amazonite
Microcline (variety Amazonite) - K(AlSi3O8)
mineral
Granite
Granite
Igneous
Dalmatian Jasper (or Dalmatian Stone)
Dalmatian Stone (A peralkaline felsite composed of feldspar, quartz, and sodic amphibole)
igneous
Gneiss
Gneiss
metamorphic
Granite (Weathered River Rock)
Plutonic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Amphibolite with Hornblende
Amphibole-rich Metamorphic Rock (Ca2(Mg,Fe)5Si8O22(OH)2)
metamorphic
Garden Quartz
Silicon Dioxide (SiO2) with various inclusions
mineral
Basalt-Amugydule (Amygdaloidal Basalt)
Aphanitic Mafic Igneous Rock with Vesicle Infillings
igneous
Pyrite in Quartz (Drill Core)
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions
igneous/metamorphic (hydrothermal)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
mineral
Granite Pebble
Granite
igneous
Chalcedony (Agate/Chert variety)
Silicon Dioxide (SiO₂)
mineral
Jasper with Hematite Inclusions
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)
sedimentary
Amygdaloidal Basalt
Amygdaloidal Basalt
igneous
Granite Thin Section
Granitic rock (Phaneritic texture)
igneous
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within a metamorphic matrix
metamorphic
Basalt (Amygdaloidal)
Amygdaloidal Basalt
igneous
Granitic Pegmatite
Pegmatitic Granite
igneous
Diorite (Salt and Pepper Rock)
Diorite
igneous
Pink Granite
Granite (Phaneritic felsic intrusive igneous rock)
igneous
Porphyritic Andesite (often called Chinese Writing Stone)
Porphyritic Basaltic Andesite with Feldspar Phenocrysts
igneous
Granite
Granite (a felsic intrusive igneous rock)
igneous
Amazonite
KAlSi3O8 (Potassium aluminum silicate - blue-green variety of Microcline)
mineral
Banded Iron Formation (BIF) with Quartz
Banded Iron Formation, often composed of alternating layers of hematite (Fe2O3) or magnetite (Fe3O4) and chert (microcrystalline quartz, SiO2)
Sedimentary
Amygdaloidal Basalt
Basalt with Secondary Mineral Infillings
igneous
Granitic Quartz or Pegmatite
Quartz with Orthoclase Feldspar (SiO2 + KAlSi3O8)
igneous