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Agate
351
Gold
121
Geodes
74
Amethyst
68
Calcite
66
Quartz crystals
61
Barite
54
Lake Superior Agate
52
Garnet
51
Azurite
51
Jasper
50
Beryl
46
Petrified wood
44
Copper
36
Chalcedony
32
Fluorite
31
Quartz
30
Apatite
28
Galena
27
Corundum
27
Fossils
27
Moss Agate
26
Chalcopyrite
26
Albite
25
Actinolite
24
Aquamarine
24
Pyrite
22
Chert
22
Amber
21
Banded Agate
21
Gold placer
21
Agatized Wood
20
Staurolite
18
Epidote
17
Hematite
16
Diamond
16
Opalized wood
16
Anhydrite
16
Arsenopyrite
15
Serpentine
15
Unakite
13
Copper Minerals
12
Smoky Quartz
12
Kyanite
12
Gypsum
12
Aragonite
12
Anglesite
12
Almandine Garnet
11
Amazonite
11
Agatized Coral
11
Feldspar
10
Cinnabar
10
Bornite
10
Silicified Wood
9
Chrysocolla
9
Carnelian
9
Onyx
9
Calcite crystals
9
Cassiterite
8
Ruby
8
Rhodonite
8
Chromite
8
Moonstone
8
Sapphire
8
Silicified Coral
8
Opal
8
Thundereggs
8
Cerussite
8
Magnetite
8
Alunite
8
Jade
7
Limonite
7
Siderite
7
Turquoise
7
Graphite
7
Tourmaline
7
Blue Quartz
7
Sphalerite
7
Celestite
7
Carnotite
7
Arsenic
6
Chalcocite
6
Allanite
6
Smithsonite
6
Obsidian
6
Pyrolusite
6
Rose Quartz
6
Fossilized coral
6
Marcasite
6
Montana Agate
6
Labradorite
6
Herkimer Diamonds
6
Megalodon teeth
6
Garnets
5
Muscovite
5
Red Agate
5
Blue Agate
5
Mica
5
Asbestos
5
Argentite
5
Amethyst crystals
5
Sillimanite
5
Tektites
5
Sunstone
5
Topaz
5
Fluorescent Calcite
5
Petrified palm wood
5
Golden Beryl
5
Staurolites
5
Fairburn Agate
5
Bloodstone
5
Autunite
5
Gem Kyanite
5
Fairburn agates
5
Turritella Agate
5
Red Jasper
4
Nephrite Jade
4
Antimony
4
Rhodochrosite
4
Barite crystals
4
Calamine
4
Citrine
4
Almandine
4
Rock Crystal
4
Fire Opal
4
Manganese
4
Common Opal
4
Keokuk geodes
4
Concretions
4
Septarian nodules
4
Andalusite
4
Stibnite
4
Green Quartz
4
Petoskey Stones
4
Agates
4
Flint
4
Lead
4
Many gem-quality mineral varieties
4
Gem Agate
4
Quartz gemstones
4
Fire Agate
3
Gold Placers
3
Wavellite
3
Jadeite
3
Analcite
3
Axinite
3
Zircon
3
Columbite
3
Limestone
3
Ilmenite
3
Halloysite
3
Lead and Silver minerals
3
Green Beryl
3
Dolomite
3
Coldwater Agate
3
Kammererite
3
Marble
3
Ankerite
3
Emerald
3
Agate nodules
3
Silver
3
Dumortierite
3
Wonderstone
3
Variscite
3
Diopside
3
Blue Beryl
3
Augite
3
Pyrite crystals
3
Montana Moss Agate
3
Selenite crystals
3
Alabaster
3
Malachite
3
Texas Bouquet Agate
3
Gem Amethyst
3
Gem Pearls
3
Sweetwater Agate
3
Albertite
3
Phosphorite
3
Chlorite
2
Willemite
2
Nodules
2
Purple Agate
2
Chalcedony Geodes
2
Gold nuggets
2
Chrysotile
2
Fossil ivory
2
Sphene
2
Bauxite
2
Olivine
2
Anthophyllite
2
Pectolite
2
Amethyst Geodes
2
Hornblende
2
Opalite
2
Rhyolite
2
Allophane
2
Iron Ore
2
Soapstone
2
Prehnite
2
Calcite Crystal
2
Ocher
2
Coquina
2
Talc
2
Kyanite crystals
2
Chabazite
2
Yellow Garnet
2
Psilomelane
2
Andesine
2
Tungsten
2
Goethite
2
Pearls
2
Pyrite Concretions
2
Halite
2
Pink Marble
2
Silicified palm wood
2
Lapearlite
2
Molybdenite
2
Hyalite Opal
2
Alum
2
Emery
2
Novaculite
2
Adularia
2
Chlorastrolite
2
Lake Superior Agates
2
Iron minerals
2
Thomsonite
2
Tripoli
2
Alunogen
2
Yellow Calcite
2
Vivianite
2
Chert nodules
2
Pyromorphite
2
Scheelite
2
Thulite
2
Apache tears
2
Magnesite
2
Blue Corundum
2
Rutile crystals
2
Chrysolite
2
Gem Beryl
2
Pyrope Garnet
2
Dogtooth Calcite
2
Gem Flint
2
Flint Nodules
2
Rose Agate
2
Priceite
2
Plume Agate
2
Platinum
2
Radioactive Copper
2
Brucite
2
Pyrite Cubes
2
Epidote crystals
2
Blue Gem Quartz
2
Biotite
2
Agatized fossil shells
2
Almandite
2
Bismutite
2
Coffinite
2
Sulfur
2
Wurtzilite
2
Arizona Ruby Garnet
2
Cassiterite crystals
1
Pink Chalcedony
1
Placer gold
1
Melanterite
1
Gem-quality Agate
1
Kaolin
1
Pink Agate
1
Eudialyte
1
Melanite
1
Diamonds
1
Zinc
1
Rock crystals
1
Uranium ore
1
Native copper
1
Copper nuggets
1
Bementite
1
Rhodonite nodules
1
Wonderstone rhyolite
1
Actinolite prisms
1
Spherulitic Chert
1
Diabase
1
Apatite Crystals
1
Grossular garnet
1
Mariposite
1
Albandite
1
Poppy Jasper
1
Dendritic Agate
1
Bismuth
1
Cookeite
1
Albite crystals
1
Sagenite Agate
1
Boltwoodite
1
Celestite concretions
1
Lavic Jasper
1
Borax
1
California Jade
1
Amphibole
1
Apophyllite
1
Lapis Lazuli
1
‘Colorado Yule’ Marble
1
Zircon crystals
1
Datolite
1
Whetstone
1
Brain coral
1
Silicified Oolite
1
Itacolumite
1
Gold sulfides
1
Mica books
1
Savannah River Agate
1
Lazulite crystals
1
Agatized fossils
1
Augite crystals
1
Clear Labradorite
1
Star Garnet
1
Red Garnet
1
Monazite
1
Bruneau Canyon Jasper
1
Petrifed wood
1
Purple Fluorite
1
Smokey Quartz
1
Blue Topaz
1
Tertrahedrite
1
Pyritized Gastropods
1
Concretions with fossils
1
Alstonite
1
Brown Sapphire
1
Trilobites
1
Oolitic limestone
1
Pink Pearl
1
Volcanic ash
1
Chalk
1
Meteorites
1
Moss Opal
1
Crystals
1
Fossil plants
1
Yellow Ocher
1
Fort Payne Chert
1
Fossilized quarry
1
Silicified fossils
1
Enstatite
1
Rockcastle conglomerate
1
Louisiana Opal
1
Analcime
1
Pyrrhotite
1
Silicified cycad wood
1
Feldspar crystals
1
Pink Fluorite
1
Puddingstone
1
Chiastolite crystals
1
Scapolite
1
Keweenaw Agate
1
Keweenaw Agates
1
Lintonite
1
Shark Teeth
1
Red Ocher
1
Blue Barite
1
St. Francisville Geodes
1
Silicified conodonts
1
Pickeringite
1
Lead and Zinc minerals
1
White Chert
1
Calcite Nodules
1
Aegirite
1
White Fluorite
1
Coal
1
Fossiles
1
Shale
1
Green Sapphire
1
Bentonite
1
Vertebrate fossils
1
Quartz concretions
1
Precious Opal
1
Gem Opal
1
Obsidian nodules
1
Chalcanthite
1
Blue Dumortierite
1
Mercury
1
Calcium
1
Arrowheads
1
Petrified algae
1
Ulexite
1
Iron
1
Hydrozincite
1
Manganese minerals
1
Gemstones
1
Many
1
Dozens or hundreds of mineral varieties
1
Chondrodite
1
Braunite
1
Axinite crystals
1
Black Jasper
1
Pink Rhodonite
1
Blue Apatite
1
Pink Feldspar
1
Chart
1
Epsomite
1
Many radioactive minerals
1
Searlesite
1
Brochantite
1
Ricolite
1
Tetradymite
1
Mexican Onyx
1
Gem Jasper
1
Agatized picture wood
1
Satin Spar
1
Aragonite crystals
1
Quartz cystals
1
Chrysotile asbestos
1
Artinite
1
Aegirine
1
Idocrase
1
Peridotite
1
Magnetite crystals
1
GemEpidote
1
Gem Feldspar crystals
1
Chrysoprase
1
Gem Corundum
1
Gem Feldspar
1
Chloritoid
1
White Star Corundum
1
Hyalite Opal Geodes
1
Quratz
1
Gem crystals
1
Rose Quratz
1
Pink Sapphire
1
Phantom Quartz
1
Actinolite crystals
1
Lepidolite
1
Yellow Chalcedony
1
Gem-quality minerals
1
Glauberite
1
Knife River Flint
1
Dark Gray Flint
1
Fluorescent Calcite crystals
1
Amphiboles
1
Grahamite
1
Nodules filled with opal
1
Wood opal
1
Fossilized bone
1
Fossilized ferns
1
Agatized limb casts
1
Ochoco Jasper
1
Crater Lake Flower Jasper
1
Oregon Jade
1
Nephrite
1
Piedmontite
1
Zeolite crystals
1
Crytomelane
1
Gem Celestine
1
Kyanite Blades
1
Potoma Marble
1
Bowenite
1
Limonite Cubes
1
Amphibolite
1
Selenite Roses
1
Gray Barite
1
Fairfield agates
1
Fluorapatite
1
Fairhill Agates
1
Fold
1
Yellow Barite
1
Blue Gem Chalcedony
1
Golden Barite
1
Blue Chalcedony
1
Cobalt
1
Gem Quartz
1
Gem Chert
1
Horse Mountain Agate
1
Chalcedony Nodules
1
Crab Orchard Sand Stone
1
Calcite onyx
1
Blue Jasper
1
Alibates Flint
1
Fossilized shark teeth
1
pyrite roses
1
Fossil leaf prints
1
Moonstones
1
Balmorhea Blue Agate
1
Celestite crystals
1
Llanite
1
Crinoid stems
1
Petrified palm
1
Almandine garnets
1
Agatized palm wood
1
Agatized fern buds
1
Agate (Rio Grande agate)
1
Dolomite crystals
1
Red Marble
1
GreenAventurine
1
Green Gem Apatite
1
Yellow Apatite crystals
1
Spessartine Garnet
1
Green Gem Quartzite
1
Virginia Greenstone
1
Blue Moonstone
1
Gem Unakite
1
Gem Rhodonite
1
Clam Geodes
1
Blue Agate Geodes
1
Wolframite
1
Flower Jasper
1
Blue Amphibole
1
Celestite crystals (blue)
1
Pink Calcite crystals
1
Red Silicified coral
1
Blue Silicified coral
1
Gem Chert Nodules
1
Gem Ruby
1
Bertrandite
1
Catlinite
1
Many minerals
1
Gem Rhyolite
1
Crinoids
1
Gem crystal
1
Gastroliths
1
Uranium minerals
1
Travertine
1
Stechemigite
1
Silicified algae
1
Petrified dinosaur bones
1
Cobalitite
1
Cahcotrichite
1
Glauconite
1
Black Agate
1
Tremolite
1
Tabbyite
1
Bieberite
1
Petrified dinosaur bone
1
Agatized clams
1
Andesite
1
Antlerite
1
Snowflake obsidian
1
Stellerite
1
Pyrope
1
Uranium
1
Corvusite
1
Beidellite
1
Epsonite
1
Brockite
1
Grossularite Garnet
1
Manganite
1
Carnallite
1
Bischofite
1
Gilsonite
1
Endellite
1
Spinel
1
Lode Gold
1
Jet
1