Showing 193–288 of 507 results

• 

  Ferrierite-NH₄

  $220
• 

  Ferrocolumbite

  $90
• 

  Flint

  $20
• 

  Fluorite

  $95
• 

  Fluorite

  $30
• 

  Fluorite

  $20
• 

  Fluorite

  $40
• 

  Fluorite

  $70
• 

  Fluorite

  $75 – $85
• 

  Fluorite

  $140
• 

  Fluorite, Wulfenite & Mimetite

  $40
• 

  Françoisite-(Nd)

  $750
• 

  Franklinite, Zincite & Willemite

  $55
• 

  Fulgurite

  $30
• 

  Gadolinite-Y

  $250
• 

  Gahnite

  $75
• 

  Galena

  $60
• 

  Galena

  $40
• 

  Galena

  $45
• 

  Galena & Pyrite on Quartz

  $65
• 

  Galena on Marmatite

  $175
• 

  Gallian Allanite-Ce

  $300
• 

  Gemstone Paydirt

  $50 – $200
• 

  Goethite

  $60
• 

  Goethite

  $75
• 

  Goethite on Smoky Quartz

  $80
• 

  Gold

  $420
• 

  Gold & Quartz on Pyrite

  $1,750
• 

  Gold Nugget #3

  $460
• 

  Gold Nugget #4

  $250
• 

  Gold on Coloradoite

  $120
• 

  Gold on Sphalerite

  $340
• 

  Graphite

  $75
• 

  Graphite

  $40
• 

  Graphite in Calcite

  $55
• 

  Greenockite

  $195
• 

  Greenockite

  $185
• 

  Hafnon

  $50,000
• 

  Halite

  $20
• 

  Hanksite

  $55
• 

  Hawleyite & Greenockite

  $150
• 

  Haxtun

  $150 – $250
• 

  Hematite

  $20
• 

  Hematite

  $20
• 

  Hematite Ammonite

  $75
• 

  Hemimorphite

  $65
• 

  Heulandite

  $50
• 

  Howlite

  $20
• 

  Hübnerite

  $95
• 

  Hübnerite

  $140
• 

  Hubnerite (Hübnerite)

  $140
• 

  Hutchinsonite & Realgar

  $200
• 

  Ilmenite

  $75
• 

  Indite & Dzhalindite

  $3,500
• 

  Iodargyrite

  $240
• 

  Iridosmine

  $200
• 

  Iridosmine

  $90
• 

  Jasper

  $25
• 

  Jasper

  $20
• 

  Jasper

  $20
• 

  Jasper

  $20
• 

  Keiviite-Y

  $110
• 

  Knightia

  $100
• 

  Kolbeckite

  $200
• 

  Kolbeckite

  $180
• 

  Kotulskite

  $125 – $500
• 

  Krennerite & Hessite

  $220
• 

  Kyanite

  $15
• 

  Kyanite

  $15
• 

  Labradorite

  $25
• 

  Labradorite

  $45
• 

  Large Petrified Wood

  $500
• 

  Large Petrified Wood Pieces

  $30
• 

  Lepidolite

  $75
• 

  Lepidolite

  $40
• 

  Lepidolite

  $40
• 

  Liebigite

  $110
• 

  Limonite on Smoky Quartz

  $75
• 

  Lokkaite-(Y)

  $7,500
• 

  Lorándite & Realgar

  $175
• 

  Magnesiopascoite

  $75
• 

  Magnetite

  $25
• 

  Malachite

  $25 – $80
• 

  Malachite on Amethyst

  $25
• 

  Manganite

  $30
• 

  Marble

  $25
• 

  Marmatite

  $75
• 

  Metamunirite

  $120
• 

  Miargyrite

  $85
• 

  Mica on Feldspar

  $40
• 

  Microcline

  $40
• 

  Molybdenite on Quartz

  $65
• 

  Monazite-Sm?

  $90
• 

  Montana Arrowheads

  $65 – $250
• 

  Moss Agate

  $25
• 

  Muscovite Mica

  $1