Quartz
Quartz (Silicon Dioxide - SiO2)
Category
Browse man made metamorphic style composite specimens identified by the Rock Identifier community.
Quartz
Quartz (Silicon Dioxide - SiO2)
Jade
Jadeite or Nephrite (both are commonly referred to as 'jade'). Jadeite: NaAlSi2O6; Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2.
Quartz with Mica/Chlorite inclusions
Silicon Dioxide (SiO2) with phyllosilicate inclusions
Clear Quartz (or Rock Crystal)
Quartz (SiO₂)
Quartz
Quartz (SiO2, Silicon Dioxide)
Rose Quartz
Rose Quartz (SiO2)
Cobaltoan Calcite / Pink Dolomite (Possible)
Cobaltoan Calcite: (Ca,Co)CO3; Pink Dolomite (or Thulite): CaMg(CO3)2 or Mn-Dolomite / (Thulite: Mn2+3Al2(Si2O7)(SiO4)O(OH))
Clear Quartz (beads in a bracelet)
Quartz (SiO2)
Laterite
Laterite (no specific mineral formula as it's a rock type)
Quartz (River Pebble)
Quartz (SiO₂ - Silicon Dioxide)
Lapis Lazuli
Lapis Lazuli (A metamorphic rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, along with Calcite and Pyrite)
Magnetic Hematite
Magnetized Hematite (an iron oxide mineral, Fe2O3, that has undergone magnetization)
Shale or Argillite
Shale (fine-grained clastic sedimentary rock) or Argillite (low-grade metamorphic rock derived from shale)
Aquamarine and clear quartz
Aquamarine (Be3Al2Si6O18), Quartz (SiO2)
Green Slag Glass (Cullet)
Amorphous Silica (Industrial Glass Byproduct)
Quartz (River-worn Pebble)
Quartz (SiO2)
Quartz (Druzy) in host rock
SiO₂ (Silicon Dioxide) as Quartz, with unspecified host rock components (likely silicates and iron oxides)
Amethyst Geode/Cluster
Quartz (SiO2) - variety Amethyst
Quartz (in matrix)
Quartz (SiO₂)
Pyrite
Pyrite (Iron sulfide, FeS₂)
Beryl (Variety Mix)
Be3Al2(Si6O18)
Quartz
Quartz (SiO₂)
Chalcedony (Banded/Mottled Variety)
Chalcedony (a cryptocrystalline variety of Quartz, SiO2)
Sandstone
Quartz Arenite (a common type of sandstone, given the appearance), Arkose, Greywacke (depending on mineralogy)
Sapphire (likely blue synthetic sapphire or blue glass in a ring)
Corundum (Al₂O₃), specifically the blue variety due to trace amounts of iron and titanium impurities. If synthetic, it would still be Al₂O₃.
Pebble (likely Quartzite or Chert)
Clastic Sediment, potentially composed of SiO₂ (Quartz)
Rutilated Quartz (likely Citrine or Smoky Quartz with Rutile inclusions)
SiO2 with TiO2 inclusions (Quartz with Rutile)
Jasper (yellow/cream variety)
SiO₂ (Cryptocrystalline Quartz)
Lapis Lazuli (blue bead) and Moss Agate (green heart)
Lapis Lazuli (lazurite-based rock) and Moss Agate (SiO2 with manganese/iron inclusions)
Chert (Flint)
Chert (predominantly SiO₂ - silicon dioxide)