Man Made Object (Metalwork)

Calcite

Calcite (Calcium Carbonate, CaCO3)

Portable Ceramic Space Heater

Polished Acrylonitrile Butadiene Styrene (ABS) Plastic with Ceramic Heating Elements

Unable to identify - Image contains non-geological items

Opalite

Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)

Slag Glass (Cullet)

Amorphous Silica (man-made), primarily SiO2 with trace metal oxides

Jewelry Chain with Blue and Clear Gemstones (Likely Cubic Zirconia)

Cubic Zirconia (ZrO₂), Silver or White Gold/Platinum Alloy

Chondrite Meteorite

Stony Meteorite (Chondrite)

Brick

Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)

Man-made Glass (Tumbled/Shaped)

Amorphous Silicon Dioxide (SiO2) with metal oxide colorants

Man-made Slag (Industrial Byproduct)

Anthropogenic Glassy Residue

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Ambergris

Ambrein-rich Calculus

Rainbow Hematite (Man-made/Treated)

Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)

Man-made Blank Ammunition (Brass)

CuZn (Cartridge Brass - roughly 70% Copper, 30% Zinc)

Glass / Silicon Dioxide (Man-made)

SiO2 (Amorphous Silicon Dioxide)

Sea Glass (Frosted Glass)

Amorphous Silica (SiO2) with various metal oxide impurities

Spiny Oyster Shell

Spondylus varians (Biogenic Calcium Carbonate)

Man-made Synthetic Material (Not a rock or mineral)

Polyester (Polyethylene terephthalate) / Faux Fur

Terracotta (Man-made ceramic brick fragment)

Baked clay / High-iron ceramic (Silicate-based ceramic)

Blue Sapphire (Synthetic or Man-made Glass Imitation)

Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic

Man-made Synthetic Material (Costume Faux Fur)

Synthetic Polymer (Polyester/Acrylic)

Calcite (or Alabaster, if truly carved)

Calcium Carbonate (CaCO3)

Optical Calcite

Calcite (Calcium Carbonate, CaCO3)

Banded Calcite or Travertine

Calcium Carbonate (CaCO3)

Jade (likely Nephrite Jade based on appearance)

Nephrite (a variety of actinolite, Ca2(Mg,Fe)5Si8O22(OH)2)

Unable to Identify (Image Obscured)

Terrazzo (with Marble and Granite fragments)

Cementitious or resinous composite containing Calcium Carbonate (CaCO3) and Silicates

Nickel coin (U.S. currency)

Cupronickel (75% Copper, 25% Nickel alloy)

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.

Greenstone Celt (Polished Stone Axe)

Metamorphosed mafic rock (often Basalt or Diabase)

Gastly (Trick or Trade Halloween Series)

Cellulose-carbonaceous composite (Lignocellulose laminated with pigmentary polymers)

Fired Clay Brick (Anthropic Rock substitute)

Anthropogenic polycrystalline ceramic (predominantly Mullite and Quartz: Al6Si2O13 + SiO2)

Cobalt Glass Slug (Man-made Glass)

Amorphous Silica with Cobalt Oxide (SiO2 + CoO)

Native Silver

Silver (elemental Ag)

Nephrite Jade

Nephrite

Petrified Wood

Silicified Wood (SiO2 - Silicon Dioxide)

Petrified Wood (Silicified Fossil)

Silicified Wood (SiO2)

Cullet Glass (Man-made Glass Slag)

Amorphous Silica (SiO2) with chemical additives

Granite

Granite (a common rock type, not a single mineral with a formula. Composed primarily of quartz, feldspar, and mica/amphibole).

Man-made Green Quartz (Lab-grown or Treated)

Silicon Dioxide (SiO2) with artificial coloration

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.

Petrified Wood

Silicified wood (primarily Silicon Dioxide, SiO2)