Beaded Jewelry (Assorted Gemstones)
Various minerals, including but not limited to Quartz (SiO2), Garnet (X3Y2(SiO4)3), Jade (Na(Al,Fe)Si2O6), Amethyst (SiO2),等の多様な組み合わせ
Mineral, Jewelry
Category
Sedimentary (Secondary Mineral) Within Igneous
Browse sedimentary (secondary mineral) within igneous specimens identified by the Rock Identifier community.
Learn about Sedimentary (Secondary Mineral) Within Igneous in the encyclopedia
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Sunstone
Oligoclase (Plagioclase Feldspar) - (Ca,Na)(Al,Si)4O8 with Hematite or Copper inclusions
mineral
Fossilized Trilobite or Mollusk Fragment
Phylum Arthropoda / Mollusca fossil in sedimentary matrix
fossil
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (mica)
Mineral (variety of Quartz)
Magnetite (Lodestone)
Iron(II,III) oxide (Fe3O4)
mineral
Eudialyte in Matrix
Na15Ca6(Fe,Mn)3Zr3(Si,Nb) (Si25O73) (OH,Cl,H2O)3
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz with Mica
Silicon Dioxide (SiO2) with Phyllosilicates (Mica)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
mineral
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
mineral
Turquoise
Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Mahogany Obsidian
Volcanic Glass (Silicate: SiO2 + Fe2O3)
igneous
Bloodstone
Chalcedony variety Heliotrope (SiO2 with inclusions)
mineral
Pyrite with Vesicular Matrix
Iron Disulfide (FeS2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Chalcedony (Yellow Agate / Carnelian Chalcedony)
Silicon Dioxide (SiO2)
mineral
White Quartz (Carved Star)
Silicon Dioxide (SiO2)
mineral
Druzy Quartz Geode (with Chalcedony)
Silicon Dioxide (SiO2)
mineral
Carnelian Agate
Silicon Dioxide (SiO2)
mineral
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
mineral
Chalcedony with Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
mineral
Coarse-grained Quartz and Feldspar Pegmatite
Pegmatite (Quartz: SiO2, Feldspar: KAlSi3O8)
igneous
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
Granite
Phaneritic Igneous Rock (Granite)
igneous
Nuummite
Antophyllite-Gedrite (Orthorhombic amphiboles)
metamorphic
Hematite
Iron(III) oxide (Fe2O3)
mineral
Hematite (likely Botryoidal or Specularite variant)
Iron(III) oxide (Fe2O3)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Quartz with Mica (Granitic / Pegmatitic Quartz)
Silicon Dioxide (SiO2) with Mica group minerals
mineral
Amazonite
Microcline (KAlSi3O8) with lead impurities
mineral
Citrine
Silicon Dioxide (SiO2) with iron impurities
Mineral
Blue Quartz (or Blue Aventurine)
Silicon Dioxide (SiO2) with inclusions (typically Crocidolite or Dumortierite)
mineral
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2) with Hematite/Limonite
mineral
Yellow Topaz (Imperial/Golden Topaz)
Topaz - Al2SiO4(F,OH)2
gemstone
Pegmatite or Graphic Granite
Intrusive Igneous Rock
igneous
Olivine/Peridot
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Sandstone (Ferruginous)
Arenite with Iron Oxide matrix
sedimentary
Red Sandstone
Arenite (primarily Quartz SiO₂ with Hematite Fe₂O₃ staining)
sedimentary