Sedimentary Or Metamorphic (Low Grade)

Rhodonite

Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)

Shale

Laminated Fissile Pelite

Halite (Rock Salt)

Halite (Sodium Chloride, NaCl)

Orange Sapphire

Corundum (Al2O3)

Rutilated Quartz

Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions

Specular Hematite (Specularite) in Matrix

Specularite (Fe2O3)

Schist

Mica Schist (variety: Muscovite/Biotite Schist)

Serpentinite

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

Jadeite

NaAlSi2O6 (Sodium Aluminum Silicate)

Shale

Shale (Lutite)

Jasper and Epidote (Unakite-like specimen)

Epidotized granite or Jasper with Epidote inclusions

Emerald

Beryl (Be3Al2Si6O18 with chromium and vanadium impurities)

Tumbled dark pebble

Indeterminate; likely basalt or fine-grained dark metamorphic rock

Rhodonite

Rhodonite ((Mn2+,Fe2+,Mg,Ca)SiO3)

Whetstone

Novaculite

Green Quartzite

Quartzite (SiO2)

Shale

Lutaceous sedimentary rock

Weathered granite or granitic gneiss

Granite; primarily quartz, feldspar, and mica (exact identification uncertain from the photo)

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Orthoclase Feldspar

Potassium Feldspar (KAlSi3O8)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

White quartzite pebble

Quartzite, composed predominantly of quartz (SiO₂)

Rounded pink quartzite pebble

Quartzite; predominantly microcrystalline quartz (SiO₂), with minor iron-oxide staining and possibly feldspar or mica

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Jade

There are two distinct minerals commonly known as Jade: Nephrite (a calcium magnesium silicate - Ca2(Mg,Fe)5Si8O22(OH)2) and Jadeite (a sodium aluminum silicate - NaAlSi2O6). Based on the image showing a typically softer, more fibrous appearance, it is likely Nephrite.

Quartzite (with Milky Quartz)

SiO2 (Silicon Dioxide)

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Jade (specifically Nephrite or Jadeite beads)

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

Banded gneiss

Gneiss; chiefly quartz, feldspar, and mica

Serpentine

Antigorite, Lizardite, or Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals, e.g., Antigorite, Lizardite, Chrysotile)

Serpentine

Antigorite / Lizardite / Chrysotile (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Shale

Laminated Mudstone

Biotite Mica

K(Mg,Fe2+)3(Al,Fe3+)Si3O10(OH,F)2

Anthracite Coal

Anthracite

Sandstone or Mudstone with Iron Staining

Ferruginous Sandstone/Mudstone

Sodalite

Na8(Al6Si6O24)Cl2

Siltstone with Sandstone Bands

Siltstone (composed of Quartz and Clay minerals)

Chiastolite

Andalusite variety Chiastolite (Al2SiO5)

Purple Chalcedony

Silicon Dioxide (SiO2)

Sodalite

Na8(Al6Si6O24)Cl2