Sedimentary Or Metamorphic (Low Grade)

Garnet Schist

Almandine Garnet in Micaceous Schist

Jadeite Jade

NaAlSi2O6 (Sodium Aluminum Silicate)

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Burmese Jadeite

Jadeite (NaAlSi2O6)

Jade (Jadeite or Nephrite)

Jadeite (NaAlSi2O6) or Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)

Ferruginous Sandstone

Ferruginous Sandstone (Quartz Arenite with Iron Oxide cement)

Jadeite (Jade)

Jadeite, NaAlSi₂O₆

Slate / Greenschist

Foliated Metamorphic Rock (Greenschist/Slate)

Weathered iron-rich sandstone or lateritic rock

Ferruginous sandstone/laterite; chiefly quartz (SiO₂) with iron oxides such as hematite and goethite

Blue-gray foliated metamorphic rock, likely slate or phyllite

Slate (fine-grained metamorphosed shale), possibly phyllite; mineral proportions cannot be confirmed from the image

Quartz on Greenstone

Silicon Dioxide (SiO2) on Altered Igneous Geologic Unit

Greenstone

Metamorphic mafic rock (greenschist facies)

Graphite-rich schist (likely graphite ore)

Graphite-bearing schist; predominantly graphitic carbon (C) with mica, quartz, and possible feldspar

Epidote in Quartz

Epidote (Ca2(Al,Fe)3(SiO4)3(OH)) in Quartz (SiO2)

Limonite Sandstone

Ferruginous Sandstone (Hydrated Iron Oxide)

Greenstone (likely altered basalt)

Metamorphosed mafic volcanic rock, commonly chlorite- and actinolite-rich; exact identification requires testing

Epidotite (Unakite-related)

Epidote-rich rock

Stilbite

Stilbite-Ca (NaCa4Mg[Al9Si27O72]·28H2O)

Marble

Metamorphosed Limestone (main mineral: Calcite, CaCO3)

Ironstone Concretion (Nutstone)

Ironstone (with High Limonite/Hematite Content)

Tumbled quartz pebble

Quartz (silicon dioxide, SiO₂), likely milky or smoky quartz

Small polished green stone, possibly serpentine or greenstone

Likely serpentine-rich rock; exact identification is limited by the blurred image

Schist

Mica Schist

Red shale (likely mudstone)

Iron-oxide-stained clay-rich shale; composition typically clay minerals and fine quartz, with hematite providing the red color

Greenstone (likely actinolite-bearing metamorphic rock)

Actinolite-rich greenschist; exact identification requires testing

Greenstone (likely chlorite- or epidote-altered basalt)

Metamorphosed mafic volcanic rock; commonly chlorite–epidote–actinolite assemblage

Weathered greenstone (possible serpentinite)

Greenstone, a broad term for metamorphosed mafic rock; exact identification is uncertain from the photograph

Greenstone (altered volcanic rock)

Chlorite–epidote–actinolite-bearing metabasalt (tentative identification)

Greenstone (likely altered basalt or greenschist)

Greenschist-facies mafic rock; commonly chlorite–actinolite–albite ± epidote, or chlorite-altered basalt

Likely slate or fine-grained metamorphic rock

Slate; predominantly microscopic mica, quartz, and clay-derived minerals

Blue-gray metamorphic rock, likely slate or schist

Foliated phyllite–schist; chiefly quartz, mica, and chlorite (exact identification requires testing)

Fine-grained dark metamorphic rock, likely slate or phyllite

Slate/phyllite; chiefly quartz, mica, and chlorite

Greenstone / River Jadeite pebble

Metavolcanic rock / Chlorite or Actinolite-rich schist

Serpentinite (often called Jade or Nephrite substitute)

Serpentinite (composed primarily of Antigorite, Lizardite, or Chrysotile)

Slate

Slate (Regional metamorphic rock composed primarily of quartz, illite, and chlorite)

Greenstone

Metabasalt / Greenschist facies rock

Greenstone Pebble

Metabasalt (often containing chlorite, actinolite, or epidote)

Greenstone / Nephrite Jade

Tremolite-actinolite series (Ca2(Mg,Fe)5Si8O22(OH)2)

Pyrite

Iron Sulfide (FeS2)

Pyrite in Matrix

Iron Sulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)