Botryoidal Hematite (Iron Stone Conglomerate)
Hematite (Fe2O3) in sedimentary matrix
sedimentary
Category
Mineral (Tectosilicate)
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Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Basalt with Quartz Vein
Mafic volcanic rock with hydrothermal SiO2 filling
igneous
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Magnetite (Lodestone variety)
Magnetite (Iron(II,III) oxide, Fe3O4)
mineral
Dendritic Agate
Silicon Dioxide with Manganese/Iron oxide inclusions (SiO2)
Mineral
Fossilized Shark Tooth (Basal Bone)
Otodus sp. (Mineralized Hydroxyapatite)
sedimentary
Quartzite with Glauconitic or Iron staining
Quartzite (SiO2 with accessory minerals)
metamorphic
Schist
Chlorite/Mica Schist
metamorphic
Sandstone
Arenite
sedimentary
Sandstone
Arenite (Siliclastic sedimentary rock)
sedimentary
Green Chalcedony
Silicon Dioxide (SiO2) with trace minerals
mineral
Included Quartz Beads (likely Phantom Quartz or Garden Quartz)
Quartz (SiO2) with various mineral inclusions
Mineral
Bicolor Quartz Pebble
Silicon Dioxide (SiO2) with mineral inclusions
mineral
Schist
Mica Schist
metamorphic
Amazonite
Potassium Feldspar (KAlSi3O8)
Mineral
Quartz (Orangey-white variety)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Smoky variant)
Silicon Dioxide (SiO2)
mineral
Yellow Apatite Sphere (Polished)
Fluorapatite / Ca5(PO4)3F
mineral
Garnet Schist
Almandine Garnet Schist
metamorphic
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Rough Quartz (with potential Host Rock)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky/Grey Quartz Variant)
Silicon Dioxide (SiO2)
mineral
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Quartz / Quartzite Fragment
Silicon Dioxide (SiO2)
igneous, sedimentary, or metamorphic (mineral-based)
Mahogany Obsidian
Volcanic glass containing Magnetite/Hematite
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Orthoclase Feldspar
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Quartz / Quartzite Pebble
Silicon Dioxide (SiO2)
metamorphic
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral