Mineral (Man Enhanced)

Quartz (River Pebble)

Quartz (SiO₂ - Silicon Dioxide)

Quartz

Silicon Dioxide (SiO2)

Granite (weathered pebble)

Granite (plutonic igneous rock)

Quartz (likely a weathered/tumbled piece)

Quartz (SiO₂)

Dolomite

Dolomite (CaMg(CO3)2)

Talc

Talc (Mg₃Si₄O₁₀(OH)₂)

Jade

There are two distinct minerals classified as Jade: Jadeite (Na(Al,Fe3+)Si2O6) and Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2). Based on the image showing translucent, somewhat fibrous material, it is likely Nephrite.

Milky Quartz (Gold-bearing Prospecting Specimen)

Silicon Dioxide (SiO2)

Chalcedony Geode

Chalcedony (SiO2) within a geode structure

Gneiss

Gneiss (a type of metamorphic rock)

Quartz (likely Milky Quartz or Chalcedony)

Quartz (SiO2 - Silicon Dioxide)

Basalt

Extrusive mafic igneous rock; primarily (Ca,Na)(Mg,Fe,Al,Si)2O6 with (Ca,Na)(Al,Si)4O8

Basalt

Basalt (Aphanitic Mafic Igneous Rock)

Quartz

Quartz (SiO2 - Silicon Dioxide)

Quartz Geode (partially formed/chalcedony with iron staining)

Quartz (SiO2) with Chalcedony (cryptocrystalline quartz) and likely Iron Oxides/Hydroxides

Shale or Argillite

Shale (sedimentary) / Argillite (metamorphic)

Basalt (Vesicular)

Vesicular Basalt

Basalt

Basalt (primarily composed of Plagioclase Feldspar and Pyroxene)

Quartz

Quartz (SiO₂)

Quartz

Quartz (SiO₂ - Silicon Dioxide)

Quartz

Quartz (SiO₂)

Basalt

Mafic volcanic rock, primarily composed of Plagioclase, Pyroxene, and Olivine

Labradorite (likely Black Labradorite or Larvikite)

Labradorite (Na,Ca)(Al,Si)4O8. If a rock, it is typically anorthosite, gabbro, or norite, or a variety of syenite called Larvikite if it is specifically from Larvik, Norway.

Slate

Slate (a fine-grained, foliated metamorphic rock). Mineral composition: Primarily composed of mica minerals (muscovite, chlorite, sericite) and quartz, with minor amounts of hematite, pyrite, and other accessory minerals.

Sandstone (likely a river or beach pebble)

Sandstone (a clastic sedimentary rock)

Iron Ore / Ironstone Concretion

Mixture of iron oxide/hydroxide minerals, likely some combination of Hematite (Fe2O3), Goethite (α-FeOOH), and Limonite (a general term for hydrated iron oxides of variable composition) or potentially Bauxite (a mixture of aluminum hydroxides, often with iron oxides, (Al(OH)3) and FeO(OH)). The visual characteristics strongly suggest iron-rich material.

Serpentine Schist with Quartz Vein

Serpentine Schist (a type of Metamorphic rock). The white band is likely Quartz (SiO2).

Clear Quartz (beads in a bracelet)

Quartz (SiO2)

Jasper (yellow/cream variety)

SiO₂ (Cryptocrystalline Quartz)

Milky Quartz

Quartz (SiO2)

Unknown Organic Object (likely a berry or fruit)

Not applicable; this is not a geological specimen. If it were a cranberry, its scientific name would be Vaccinium macrocarpon; if a cherry, it would be Prunus avium or Prunus cerasus.

Jade

Jadeite or Nephrite

Scoria

Scoria (a vesicular basalt or andesite)

Marble

Marble (primarily Calcite, CaCO3 or Dolomite, CaMg(CO3)2)

Lazulite

Lazulite (Mg,Fe2+)Al2(PO4)2(OH)2

Pink Stained Rock (Likely Quartzite or Sandstone with Iron Oxide Staining)

Quartzite (metamorphic) or Sandstone (sedimentary); coloration likely due to hematite or other iron oxides.

Gneiss

Gneiss (a metamorphic rock)

Granite Pegmatite

Coarse-grained Granite (SiO2 - Aluminum and Alkalies)

Himalayan Salt

Halite (mineral name), chemical formula NaCl (sodium chloride). Generally, 'Himalayan Salt' is a trade name for evaporite minerals from specific regions.

Gneiss (likely)

Gneiss

Banded Gneiss (with possible weathered sulfide or iron staining)

Gneiss, potentially with iron oxide/hydroxide staining (e.g., limonite) or weathered sulfides

Chert (often referred to as 'Jasper' when red)

Chert (microcrystalline quartz, SiO₂)