Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Category
Man Made
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Sandstone (Ferruginous)
Arenite (primarily SiO2 with Iron Oxide staining)
sedimentary
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Pink Diamond
Carbon (C)
mineral
Basalt with Quartz Veins
Vesicular or aphanitic Basalt with SiO2 (Quartz) intrusions
Igneous
Red Chert / Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Amygdaloidal Basalt
Basalt with secondary mineral infilling (commonly SiO2 or Zeolites)
igneous
Granite (tumbled pebble)
Granite (Plutonic Igneous Rock)
Igneous Rock
Bloodstone Jasper (Heliotrope)
SiO2 (Silicon Dioxide) - Cryptocrystalline Quartz
sedimentary
Red Jasper (possibly Brecciated Jasper or Bloodstone variety)
Jasper (Silicon Dioxide, SiO2)
sedimentary
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Sandstone (Quartz Sandstone)
Arenite (primarily SiO2)
sedimentary
Sandstone Pebble
Arenite (primarily SiO2)
sedimentary
Fluorite on Matrix
Calcium Fluoride (CaF2)
mineral
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Green Fluorite
Calcium fluoride (CaF2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Fluorite
Fluorite (Calcium Fluoride - CaF2)
mineral
Red Hematite
Iron(III) oxide (Fe2O3)
mineral
Fluorite
Fluoride (Calcium Fluoride - CaF2)
mineral
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Rainbow Fluorite
Calcium Fluoride (CaF2)
mineral
Limestone
Calcium carbonate (CaCO3)
sedimentary
Red Jasper (Quartzite conglomerate)
Silicon dioxide (SiO2) with Iron inclusions
sedimentary
Jasper
Jasper (SiO2)
sedimentary
Rose Quartz
Rose Quartz (Silicon Dioxide, SiO2)
mineral
Limonite
Limonite (FeOO·nH2O)
mineral
White Howlite
Howlite (Calcium borosilicate hydroxide, Ca2B5SiO9(OH)5)
mineral
Crazy Lace Agate
Chalcedony (Silicon Dioxide, SiO2)
mineral
Rugose Coral (Horn Coral) Fossil
Order Rugosa (likely Grewingkia or Zaphrentis genus)
fossil
Fluorite (likely Fluorite on Quartz/Matrix)
Calcium Fluoride (CaF2)
mineral
Tumbled Quartz (Snow Quartz)
Silicon Dioxide (SiO2)
mineral
Granodiorite (Gravel Pebble)
Granodiorite
igneous
Fluorite
Calcium Fluoride (CaF2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Serpentinite
Serpentinite (composed largely of serpentine group minerals including Antigorite, Lizardite, or Chrysotile)
metamorphic
Granite
Granite
igneous
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Limonite/Ironstone
Limonite (Hydrous ferric oxides), FeO(OH)·nH2O
sedimentary
Jasper
Silicon dioxide (SiO2)
sedimentary
Diabase (Greenstone)
Diabase or Dolerite
igneous