Diamond in Kimberlite
Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)
Category
Browse sedimentary (man made conglomerate) specimens identified by the Rock Identifier community.
Diamond in Kimberlite
Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)
Granite
Phaneritic Felsic Intrusive Igneous Rock
Pearl
Aragonite / Calcium Carbonate (CaCO3)
Diamond (Cluster Ring)
Carbon (C)
Granite
Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)
Basalt
Basalt (Mafic volcanic rock)
Flower Agate
Chalcedony (SiO2) with inclusions
Moonstone (specifically Rainbow Moonstone / White Labradorite)
White Labradorite (Feldspar Group: (Na,Ca)(Al,Si)4O8)
Onyx (Black) and Mother of Pearl Inlay
Silicon Dioxide (SiO2) for Onyx; Aragonite (CaCO3) for Mother of Pearl
Amethyst
SiO2 (Silicon Dioxide with iron impurities)
Polished blue stone, likely sodalite or dyed agate
Sodalite: Na₈(Al₆Si₆O₂₄)Cl₂; exact identification requires testing
Granite
Granite (plutonic igneous rock)
Fossiliferous Limestone
Limestone (composed primarily of calcite with included fossils CaCO3)
Snowflake Obsidian
Volcanic glass with Cristobalite inclusions (70–75% SiO2)
Unakite
Altered Granite (Epidotized Granite)
Basalt
Basalt
Granite
Phaneritic Igneous Rock (composed mostly of Quartz, Feldspar, and Mica)
Granite
Phaneritic Felsic Igneous Rock
Granite
Granite (a phaneritic intrusive igneous rock)
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
Diamond
C (Pure Carbon)
Tumbled greenstone, likely nephrite jade
Nephrite jade (interlocking tremolite–actinolite amphibole; Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂)
Peanut Wood
Petrified Wood (Silicified Araucaria with Teredo boreholes)
Granodiorite
Granodiorite (Quartz + Plagioclase + Alkali Feldspar + Biotite/Hornblende)
Obsidian
Obsidian (Volcanic Glass)
Amethyst
Amethyst (Silicon Dioxide - SiO2 with Iron impurities)
Diamond
Diamond (Pure Carbon, C)
Petoskey Stone
Hexagonaria percarinata
Porphyry
Porphyritic Igneous Rock
Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite)
Slate
Slate (Foliated Metamorphic Rock)
Diamond
Carbon (C)
Diabase (Dolerite)
Diabase
Diamond
Carbon (C)
Diamond
Carbon (C)
Rough Diamond
Diamond (pure Carbon, C)
Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Granite
Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
Quartz (Pebble)
Quartz (SiO₂)
Diabase (Greenstone)
Diabase (Dolerite)
Pallasite Meteorite
Pallasite (Stony-Iron Meteorite)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)