Mineral (Silicate Variety)

Native Copper with Malachite and Chrysocolla

Native Copper (Cu) with Malachite [Cu2CO3(OH)2] and Chrysocolla [(Cu,Al)2H2Si2O5(OH)4·nH2O]

Assorted Semi-Precious Gemstone Crosses

Quartz, Silicates, Carbonates (various)

Rounded river pebble

Likely lithic sandstone or weathered quartz-rich rock; exact identification requires testing

Petrified Wood

Silicified Wood (primarily SiO2)

Quartz Vein in Host Rock

Silicon dioxide (SiO2) veining in silicate matrix

Kyanite (within Quartz)

Kyanite (Al2SiO5) in crystalline Quartz base (SiO2)

Sodalite in Feldspar (or Sodalite Syenite / Yooperite-type rock)

Na8(Al6Si6O24)Cl2 (Sodalite) with KAlSi3O8 (Feldspar)

Small quartz-rich pebble

Quartz (SiO₂), possibly quartzite or weathered granite fragment

Green Jasper / Bloodstone

SiO2 (Microcrystalline Quartz)

Rhodonite

Rhodonite (Mn,Fe,Mg,Ca)SiO3

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Beach Pebble (Gabbro or Basalt Porphyry)

Mafic Igneous Rock (Porphyritic Basalt / Gabbro)

Chrysocolla in Jasper (Chryso-Jasper)

Cu2-xAlx(H2-xSi2O5)(OH)4·n H2O (Chrysocolla) + SiO2 (Jasper)

Tiger's Eye (Multicolor/Variegated)

Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxides)

River Siltstone / Mudstone Pebble

Siltstone (composed of mixed silicate and carbonate minerals)

Jadeite (Jade)

NaAlSi2O6 (Sodium Aluminum Silicate)

Jadeite (Jade Ring)

NaAlSi2O6 (Sodium Aluminum Silicate)

Sandstone (Fluvial Pebble)

Arenite

Chrysocolla

Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O

Blue glass-like gemstone specimen (likely dyed or synthetic quartz)

Uncertain; possibly blue-dyed quartz or synthetic glass, not confidently identifiable from the image

Jadeite Jade

NaAlSi2O6 (Sodium Aluminum Silicate)

Dalmatian Stone

Dalmatian Jasper (a trade name for an igneous microcrystalline rock composed mostly of feldspar, quartz, and dravite)

Snowflake Obsidian (Flower Jasper variant)

Vitreous volcanic silicate with cristobalite inclusions

Mica / Muscovite or Biotite

Phyllosilicate mineral group (e.g., KAl2(AlSi3O10)(OH)2)

Black Tourmaline (Schorl)

Schorl (Sodium iron silicate hydroxide boron silicate); NaFe3Al6(BO3)3Si6O18(OH)4

Iron-rich weathered pebble

Likely limonite/goethite-bearing ferruginous rock; exact identification requires testing

Chrysocolla and Malachite Beads

Hydrated copper silicates (Chrysocolla) and Copper carbonate hydroxide (Malachite)

Ruby in Zoisite (Anyolite)

Anyolite (Combination of Corundum and Zoisite)

Jadeite Jade

NaAlSi2O6 (Sodium Aluminum Silicate)

Quartz Pebble with Chlorite or Epidote Inclusions

Silicon Dioxide (SiO2) with inclusions

Serpentine (Nephrite-like River Cobble)

Serpentinite (Hydrous Magnesium Iron Silicate)

Slate

Slate (Metamorphic silicate rock)

Green sea glass (likely bottle glass)

Man-made soda–lime silicate glass; not a natural mineral

Rhodonite in Quartz Matrix

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

Eclogite (retrograded)

Eclogite (Omphacite-Garnet rock)

Petrified Wood

Silicified Wood (SiO2)

Petrified Wood

Silicified Wood (primarily Quartz/Chalcedony, SiO2)

Slag (Industrial Byproduct)

Artificial silicate/iron byproduct

Veined Quartz

SiO2 (Silicon Dioxide)

Glass

Amorphous Silicon Dioxide (SiO2)

Red Jasper with Quartz

Silicon Dioxide (SiO2) with Hematite impurities

Ocean Jasper (Orbicular Jasper)

Silicon Dioxide (SiO2) with various inclusions