Amber
Succinite (Resinite)
Organic Crystal (Mineraloid)
Category
Mineral (Or Mineraloid If Microcrystalline)
Browse mineral (or mineraloid if microcrystalline) specimens identified by the Rock Identifier community.
Learn about Mineral (Or Mineraloid If Microcrystalline) in the encyclopedia
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Dalmatian Jasper
Microcrystalline Quartz with Arfvedsonite and Tourmaline inclusions
igneous
Slag Glass
Amorphous Silica Glass (with metal oxide inclusions)
Mineraloid / Industrial Waste
Chert (potentially Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Amber (and Citrine Quartz)
Succinite (Amber) and Silicon Dioxide (SiO2)
Organic Mineraloid and Mineral
Quartz / Common Opal Transition
Silicon Dioxide (SiO2)
mineral
Amber
Succinite (specifically for Baltic amber); Approximate formula: C10H16O
Organic Gemstone (Mineraloid)
Opalite
Synthetic Opalite Glass (Silicon Dioxide)
mineraloid (man-made)
Chalcedony (Yellow/Brown Agate Pebble)
Silicon Dioxide (SiO2)
mineral
Chert (with Quartz vein/coating)
Microcrystalline Quartz (SiO2)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Brown Quartz (Jasper or Chert)
Silicon Dioxide (SiO2)
sedimentary
Agate
Silicon dioxide (SiO2) - variety Chalcedony
mineral
Banded Agate
Silicon Dioxide (SiO2)
mineral
Tumbled jasper or iron-rich chert
Microcrystalline quartz (SiO₂), likely colored by iron oxides
mineral
Flint / Chert with Cortex
Microcrystalline Quartz (SiO2)
sedimentary
Quartzite Pebble (with mineral veining)
Metamorphic Quartzite (SiO2)
metamorphic
Leopard Skin Jasper
Microcrystalline Quartz (SiO2) with mineral impurities
sedimentary
Chalcedony on Matrix
Silicon Dioxide (SiO2)
mineral
Red Jasper Pebble
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Weathered jasper/chert nodule
Microcrystalline quartz (SiO₂), likely iron- and clay-stained jasper or chert
sedimentary
Polished red jasper
Jasper, microcrystalline quartz (SiO₂)
mineral
Agate (Polished Cabochon Slice)
Silicon Dioxide (SiO2)
mineral
Brecciated jasper
Jasper (microcrystalline quartz, SiO₂), likely iron-oxide-rich breccia
sedimentary
Tumbled jasper pebble
Jasper, an opaque microcrystalline variety of quartz (SiO₂), commonly colored by iron oxides and hydroxides
mineral
Polished brecciated jasper pebble
Microcrystalline quartz (SiO₂), with iron-oxide inclusions
mineral
Polished orbicular jasper (likely ocean jasper)
Silicified microcrystalline quartz (SiO₂), commonly called orbicular jasper or ocean jasper
mineral
Polished brown jasper (probable ocean jasper or iron-rich jasper)
Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides and other inclusions
mineral
Tumbled brown jasper
Jasper, microcrystalline quartz (SiO₂), commonly with iron-oxide impurities
mineral
Jasper (Chert / Chalcedony)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Tumbled jasper/chert pebble
Microcrystalline quartz (SiO₂), likely jasper or silicified chert
sedimentary
Polished red jasper
Jasper, microcrystalline quartz (SiO₂), colored chiefly by iron oxides
metamorphic
Red jasper
Jasper, a microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides
mineral
Polished brecciated jasper
Silica-rich microcrystalline quartz/chalcedony (SiO₂), with iron-oxide staining and angular mineral fragments
metamorphic
Tumbled brown jasper
Microcrystalline quartz (SiO₂), commonly with iron-oxide impurities
mineral
Tumbled dark reddish-brown stone, possibly red jasper
Jasper, microcrystalline quartz (SiO₂), likely iron-oxide colored
mineral
Jasper pebble with vein quartz cross-cutting fractures
Microcrystalline Quartz (SiO2) with iron oxide inclusions
sedimentary
Carnelian Agate
Silicon Dioxide (SiO2)
mineral
Agate (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble (possibly Chalcedony or Chert)
Silicon Dioxide (SiO2)
mineral
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Opalite
Synthetic Opalized Glass (SiO2 + additives)
mineraloid (man-made)