Metamorphic (Altered Igneous Rock)

Greenschist (or Serpentinite) with Quartz-Feldspar Vein

Metabasalt / Greenschist Facies Rock

Likely greenstone (metamorphosed basalt)

Greenschist or chlorite–epidote altered basalt; commonly composed of chlorite, epidote, actinolite, albite, and quartz

Jasper containing epidote (Unakite-like)

Epidotized Jasper (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))

Quartz–feldspar pegmatite fragment

Granitic pegmatite, chiefly quartz (SiO₂) and feldspar, with probable biotite or chlorite

Red Agate Sphere (or Banded Jasper/Agate)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chrysocolla-bearing copper mineral specimen (probable turquoise/chrysocolla mix)

Chrysocolla, Cu₂H₂Si₂O₅(OH)₄·nH₂O, with possible turquoise CuAl₆(PO₄)₄(OH)₈·4H₂O and copper oxides

Petoskey Stone

Hexagonaria percarinata (Fossilized Rugose Coral)

Raw greenish mica-rich mineral specimen

Likely muscovite mica with quartz or feldspar inclusions; exact identification requires testing

Agate

Silicon Dioxide (Chalcedony), SiO2

Migmatite

Migmatite (Mixed metamorphic-igneous rock)

Schist

Metamorphic rock (Schist)

Banded Sandstone / Quartzite with Mineral Veins

Sedimentary rock (Quartz arenite with iron oxide/silica banding)

Serpentine (likely polished serpentine pebble)

Serpentine-group minerals, chiefly antigorite, lizardite, or chrysotile; approximate formula Mg₃Si₂O₅(OH)₄

Gray granite or granitic gneiss gravel

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

Nephrite Jade Ring

Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)

Porphyritic Basalt (likely artificially dyed or altered)

Basalt with plagioclase phenocrysts (likely treated)

Iron-rich brown stone, possibly weathered chert or ironstone

Undetermined; likely iron-oxide-bearing silica-rich rock (chert/ironstone)

Brecciated Jasper (Polished)

Silicon Dioxide (SiO2) with Iron Oxide Impurities

Jade (Nephrite or Jadeite)

Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 (amphibole mineral); Jadeite: NaAlSi2O6 (pyroxene mineral)

Polished quartz-rich pebble, possibly jasper or quartzite

Quartzite or chalcedony-bearing jasper; predominantly SiO₂

Quartz Pebble

Silicon Dioxide (SiO2)

Potassium Feldspar (Microcline / Orthoclase)

KAlSi3O8

Specular Hematite (Specularite)

Hematite (Fe2O3)

Green Spot Jasper (Kiwi Jasper / Sesame Jasper)

Partially altered granitic rock rich in quartz, microcline feldspar, and tourmaline or amphibole inclusions

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Unakite

Epidotized Granite

Gneiss

Gneiss (Metamorphic Rock)

Banded Gneiss

Gneiss (Metamorphic Rock)

Foliated Metamorphic Rock (likely Gneiss or Schist)

Gneissic Metamorphic Rock

Weathered greenish-gray stone, likely serpentinite

Serpentinite (serpentine-group minerals, chiefly antigorite/lizardite; approximate formula Mg₃Si₂O₅(OH)₄)

Gossan (Iron Hat)

Iron oxide-rich weathered rock (primarily Limonite and Goethite with secondary Quartz)

Gneiss

High-grade regional metamorphic rock (Foliated)

Greenstone (Celadonite-bearing Volcanic)

Hydrothermally altered basalt or andesite with Celadonite (K(Mg,Fe2+)(Fe3+,Al)Si4O10(OH)2)

Serpentine

Serpentine group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al)2O5(OH)4)

Grass (Organic Matter/Soil)

Poaceae (family of monocotyledonous flowering plants)

Gneiss (Metamorphic Pebble)

Gneissic Metamorphic Rock

Gneiss

Gneiss (Metamorphic Rock)

Gneiss

Gneiss (Metamorphic Rock)

Gneiss

Foliated Metamorphic Rock

Smoky Quartz

SiO2 (Silicon Dioxide)

Weathered limestone

Calcite-rich carbonate rock (mostly CaCO₃), possibly fossiliferous limestone

Jade

Jade can refer to two distinct minerals: Nephrite (a variety of the mineral actinolite, Ca2(Mg,Fe)5Si8O22(OH)2) and Jadeite (Na(Al,Fe3+)Si2O6). Based on the image, showing a relatively uniform green color and possibly slight translucence in bead form, it is very likely one of these, but determining which one from a photo is difficult without specific testing.