Mineraloid (Man Made)

Rhodonite

Rhodonite (MnSiO3)

Lazulite

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

Likely polished leopard-skin jasper or brecciated jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), with iron-oxide and other mineral inclusions; exact variety cannot be confirmed from the image alone

Scoria

Scoria (a vesicular basalt or andesite)

Green Banded Chert (Agate/Jasper)

Silicon Dioxide (SiO2) with trace impurities of Chlorite or Glauconite

Native Silver

Silver (Ag)

Gemstone bead necklace (likely citrine or yellow quartz)

Quartz, SiO₂; precise identification is uncertain because the beads are blurred and metal settings obscure them

Slag (Industrial Glass Slag)

Amorphous Silicate Glass (often containing Al, Ca, Mg, and Ti oxides)

Calcite (commonly referred to as Orange Calcite or Honey Calcite given its color)

Calcite

Sandstone (likely Fossilized Wood or Concrete Simulacrum)

Arenite / Silicified Wood / Anthropogenic Concrete

Cobalt Blue Sea Glass

Amorphous Silica Glass (SiO2 + CoO)

Iron Slag

Ferrous Slag (Industrial Byproduct)

Chert

Silicon dioxide (SiO2)

Granite

Granite

Mother of Pearl (Nacre)

Calcium Carbonate (primarily aragonite, with conchiolin)

Marble

Marble (metamorphosed limestone/dolostone). Predominantly composed of Calcite (CaCO3) for marble derived from limestone, or Dolomite (CaMg(CO3)2) for marble derived from dolostone.

Quartz (Rock Crystal) with minor impurities

Quartz (SiO2)

Mixed Gemstone Beaded Jewelry

Various minerals (e.g., Quartz varieties like Rose Quartz, Amethyst; Peridot; Garnet; etc.)

Obsidian

Obsidian (volcanic glass, amorphous silica rich rock)

Weathered, iron-stained rhyolite pebble (possibly rhyolitic volcanic breccia)

Rhyolite, a felsic volcanic rock; mainly quartz and alkali feldspar with minor plagioclase, altered mafic minerals, and iron-oxide staining

Red Jasper

Jasper (a variety of Chalcedony, SiO₂)

Stainless Steel Spoon

Iron-Chromium Alloy (Fe + Cr + Ni)

Tumbled sodalite with white calcite veining

Sodalite, Na8(Al6Si6O24)Cl2, commonly intergrown with calcite, CaCO3

Granite fragment

Granite

Rose Quartz Carving

Quartum roseum (Variety of Quartz, SiO2)

Rose Quartz (likely carved)

Rose Quartz (SiO2)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Chert (often called Flint)

Chert (Cryptocrystalline Quartz, SiO2)

Red Swirl Beads (Likely Resin or Glass, simulating Red Jasper or Agate)

N/A (for the beads as pictured); Red Jasper: SiO2 (Chert variety); Red Agate: SiO2 (Chalcedony variety)

Chert / Flint

Silicon Dioxide (SiO2)

Pink Granite

Phaneritic Igneous Rock (Quartz-Feldspar-Mica)

Serpentinite

Serpentinite (composed primarily of serpentine-group minerals like antigorite, chrysotile, and lizardite; chemical formula varies but generally Mg3Si2O5(OH)4)

Goldstone

Not a natural mineral or rock. It is an ornamental glass.

Seraphinite

Clinochlore (Mg,Fe)5Al(AlSi3O10)(OH)8 - specific variety for Seraphinite due to its fibrous inclusions and chatoyancy.

Quartz (likely Milky Quartz)

Quartz (SiO₂ - Silicon Dioxide)

Quartzite or Quartz Vein Material

SiO2

Granite fragment

Granite

Granite

Intrusive Igneous Rock (composed primarily of quartz, alkali feldspar, and plagioclase)

Quartz

Quartz (SiO₂)

Porphyritic Basalt or Diabase with Plagioclase Phenocrysts

Porphyritic Basalt or Diabase; Mineral: Plagioclase Feldspar

Ferruginous Sandstone

Sandstone, Iron-rich

Chert Pebble

Microcrystalline Quartz (SiO2)