Fluorite (likely)

Calcium Fluoride (CaF2)

Mineral

Fluorite

Fluorite (Calcium Fluoride - CaF2)

mineral

Quartz

Quartz (SiO2 - Silicon Dioxide)

Mineral, often found as detrital grains in sedimentary rocks

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

Mineral

Apatite

Apatite Group (e.g., Fluorapatite Ca5(PO4)3F, Chlorapatite Ca5(PO4)3Cl, Hydroxylapatite Ca5(PO4)3(OH))

mineral

Quartz

Quartz (SiO₂ - Silicon Dioxide)

mineral

Quartz

Quartz (SiO2 - Silicon Dioxide)

Mineral

Green Slag Glass (Cullet)

Amorphous Silica (Industrial Glass Byproduct)

Synthetic/Byproduct (Non-igneous, non-sedimentary, non-metamorphic)

Fossiliferous Limestone

Limestone (composed primarily of calcite with included fossils CaCO3)

Sedimentary

Fossil Coral

Coral Limestone (a type of biogenic sedimentary rock)

Sedimentary

Quartz (chalcedony variety) or Limestone with Quartz Veins

SiO2 (for Quartz/Chalcedony); CaCO3 (for Limestone)

Mineral or Sedimentary Rock (with mineral inclusions)

Sandstone (with possibly iron oxides and other minerals)

Sandstone

Sedimentary rock

Weathered Volcanic Rock (possibly Rhyolite or Andesite Pebble)

Volcanic rock (e.g., Rhyolite or Andesite, specific identification would require thin section analysis or chemical assay). Mineral composition: Primarily feldspars (orthoclase and/or plagioclase), quartz (in rhyolite), micas, amphiboles, and sometimes pyroxenes.

Igneous, specifically volcanic/extrusive (possibly Rhyolite or Andesite)

Cobaltoan Calcite / Pink Dolomite (Possible)

Cobaltoan Calcite: (Ca,Co)CO3; Pink Dolomite (or Thulite): CaMg(CO3)2 or Mn-Dolomite / (Thulite: Mn2+3Al2(Si2O7)(SiO4)O(OH))

Mineral / Rock (depending on purity)

Unidentified Rock Fragment

Unknown

Rock

Basalt

Basalt (dominated by plagioclase feldspar and pyroxene)

igneous

Fluorite

Fluorite (CaF₂)

mineral

Fluorite

Fluorite (Calcium Fluoride, CaF2)

mineral

Fluorite

Fluorite (Calcium Fluoride, CaF2)

mineral

Amphibolite

metamorphic

Caliche (also known as hardpan, calcrete, kankar)

Primarily composed of calcium carbonate (CaCO₃), often mixed with other minerals like quartz, clay minerals, and iron oxides.

Mineral

Calcite

Calcite (CaCO3)

Mineral

Quartzite

Quartzite (primarily composed of SiO O₂)

Sedimentary Rock

Fluorite

Fluorite (Calcium Fluoride, CaF2)

Mineral

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)

Organic (if resin) or Synthetic (if glass); simulating Sedimentary or Metamorphic (for natural stones)

Banded Gneiss (Variety of Gneiss)

Gneiss (specifically, a variety exhibiting prominent banding; mineral composition can vary, but often contains quartz, feldspar, mica, and amphibole)

Metamorphic Rock

Dark-colored Igneous Rock (likely Basalt or Diabase)

Basalt (extrusive igneous) or Diabase (intrusive igneous)

Igneous Rock

Calcite (or Alabaster, if truly carved)

Calcium Carbonate (CaCO3)

Mineral/Rock

Puddingstone

Polymictic Conglomerate

sedimentary

Conglomerate

Polymictic Conglomerate

sedimentary

Conglomerate

Clastic sedimentary rock (Polymictic Conglomerate)

sedimentary

Pink Feldspar

Orthoclase Feldspar (KAlSi3O8)

mineral

Rose Quartz

Rose Quartz (SiO2)

Mineral

Amethyst

Amethyst (Silicon Dioxide - SiO2 with iron impurities)

mineral

Granite (Weathered)

Grano-diorite / Granite (SiO2 rich intrusive rock)

igneous

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

mineral

Vesicular Basalt (or Scoria)

Vesicular Basalt (Aphanitic-vesicular volcanic rock)

igneous

Granite

Intrusive igneous rock (SiO2 range 65-75%)

igneous

Conglomerate

Clastic sedimentary rock (Polymictic Conglomerate)

sedimentary

Dyed Dragon Vein Agate

Silicon Dioxide (SiO2) with artificial pigment

mineral

Specular Hematite (Specularite)

Iron Oxide (Fe2O3)

mineral

Obsidian with Spherulitic Devitrification (Snowflake Obsidian/Mahogany related)

Volcanic Glass (70% or more SiO2)

igneous