Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Category
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Aquamarine and clear quartz
Aquamarine (Be3Al2Si6O18), Quartz (SiO2)
Dyed Dalmatian Stone
Aplite (Alkali-feldspar granite) with Arfvedsonite
Milky Quartz Pebble with Chert
Silicon Dioxide (SiO2)
Shale
Shale
Porphyritic Basalt (likely Chinese Writing Stone)
Porphyritic Basalt / Plagioclase Feldspar in Basal Matrix
Malachite
Copper(II) carbonate hydroxide, Cu2CO3(OH)2
Arsenopyrite
Arsenopyrite (FeAsS)
Gneiss
Gneiss (High-grade metamorphic rock)
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(OH)₄(BO₃)₃Si₆O₁₈)
Green Fluorite
Calcium fluoride (CaF2)
Dragon Blood Jasper
Epidote with Red Jasper (Quartz-rich aggregate)
Flint or chert fragment
Microcrystalline quartz (SiO₂), likely flint/chert
Banded Chert
Microcrystalline Quartz (SiO2)
Red Jasper
Jasper (Silica with Hematite inclusions), SiO2
Yellow Jasper (Iron-stained Chert)
Silicon Dioxide (SiO2) with iron oxide (Limonite/Goethite) inclusions
Chert (Nodular)
Chert (Microcrystalline Quartz, SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Tree Agate
Silicon Dioxide (SiO2) with Chlorite inclusions
Jasper
Silicon dioxide (SiO2)
Chalcopyrite in Quartz (Gossan/Iron Hat)
CuFeS2 (Chalcopyrite) with SiO2 (Quartz)
Pyrite
Iron Sulfide (FeS2)
Dalmatian Jasper
Peralkaline Quartz Feldspar Porphyry
Rhodochrosite
Manganese Carbonate (MnCO3)
Golden Mica Schist
Mica Schist (primarily Muscovite/Biotite with Quartz)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Amazonite
Microcline (KAlSi3O8) with lead impurities
Magnetite
Magnetite (Iron(II,III) oxide, Fe3O4)
Obsidian with Perlitic Crust
Volcanic Glass (SiO2)
Scoria
Scoria (Extrusive Volcanic Rock)
Diabase (Trap Rock)
Diabase (also known as Dolerite)
Smoky Quartz
SiO2 (Silicon Dioxide)
Rough Quartz (Milky / Clear Quartz)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Dalmatian Stone
Dalmatian Stone (formerly called Dalmatian Jasper)
Larimar (with dendritic inclusions)
Blue Pectolite (NaCa2Si3O8(OH))
Orange Calcite
Calcium Carbonate (CaCO3)
Fuchsite (Green Muscovite / Mica Schist)
Chromian Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
Jasper
Jasper (Silicon Dioxide, SiO2 with iron oxide inclusions)
Banded Flint (Chert)
Silicon Dioxide (SiO2)
Pyritic Shale
Carbonaceous Shale with Iron Pyrite (FeS2)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)