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Marcasite
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5.2" Sphalerite Flowers On Glittering Marcasite - Missouri
$79
5.4" Sphalerite Flowers & Twinned Calcite On Marcasite - Missouri
$65
4" Sphalerite "Flowers" on Dolomite Association - Missouri
$45
3.65" Blue Bladed Barite and Marcasite On Quartz - Morocco
$45
3.9" Sparkling Botryoidal Rhodochrosite on Quartz - Mexico
$185
2.6" Quartz Crystals and Pyrite on Sphalerite - Peru
$25
4.7" Quartz Crystals over Tetrahedrite - Crystals on Crystals!
$39
1.85" Glassy Botryoidal Opal with Chalcedony - Mexico
$25
1.05" Vibrant Pink Rhodochrosite - Sweet Home Mine, Colorado
$49
2.9" Glass Quartz Crystals on Sphalerite - Peru
$22
3.7" Glass Quartz Crystals on Sphalerite - Peru
$29
1.7" Amethyst Crystals on Sparkling Quartz Chalcedony - India
$32
2.5" Botryoidal Hyalite Opal with Chalcedony - Mexico
$25
2.3" Botryoidal Hyalite Opal with Chalcedony - Mexico
$25
3.15" Quartz Needles with Pyrite on Sphalerite - Peru
$25
1.95" Sparkling Druzy Quartz and Calcite on Basalt - India
$22
2.7" Calcite and Iridescent Chalcopyrite on Dolomite - Missouri
$39
7.2" Polished Petrified Wood Slab - Saddle Mountain, WA
$95
7.6" Polished Petrified Wood Slab - Saddle Mountain, WA
$95
4.85" Striated Pyrite and Quartz on Sphalerite - Peru
$65
5.4" Red Phantom Quartz Crystals on Cubic Galena and Pyrite - Peru
$95
1.9" Amethyst and Chabazite Crystals on Sparkling Chalcedony - India
$19
3.6" Anatase Crystals on Quartz with Chlorite Inclusions/Phantoms
$495
4.35" Quartz and Pyrite Crystal Cluster - Crystals on Crystals!
$39
2" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$9
1.95" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$9
1.75" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$7
2" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$12
1.6" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$7
2.3" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$7
2.1" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$7
2" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$9
1.45" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$7
2.1" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$9
1.9" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$12
1.9" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$7
2.05" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$9
1.95" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$12
2" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$5
2.1" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$12
1.95" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$7
2.5" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$15
2.5" Sparkly Druzy Quartz Cabochon - Artigas, Uruguay
$15
1.75" Intricate Botryoidal Rhodochrosite - Santa Eulalia, Mexico
$19
1.2" Botryoidal Rhodochrosite Formation - Santa Eulalia, Mexico
$25
1.65" Intricate Botryoidal Rhodochrosite - Santa Eulalia, Mexico
$25
1.2" Intricate Botryoidal Rhodochrosite - Santa Eulalia, Mexico
$25
1.5" Pink Botryoidal Rhodochrosite - Santa Eulalia, Mexico
$19
2.05" Vibrant Purple Fluorite - Sweet Home Mine, Colorado
$49
2.2" Sparkling Botryoidal Rhodochrosite - Santa Eulalia, Mexico
$45
3.25" Sparkling Botryoidal Rhodochrosite on Pyrrhotite - Mexico
$195
2" Calcite and Iridescent Chalcopyrite on Dolomite - Missouri
$25
2.6" Pale Yellow Calcite Crystals on Dolomite - Missouri
$29
3" Yellow Calcite Crystals on Dolomite - Missouri
$35
2.8" Iridescent Marcasite Crystal Stalactites - Linwood Mine, Iowa
$145
6.5" Nipomo Sagenite Agate Slab - Freddie Quarry, California
$225
2.7" Quartz and Pyrite on Dolomite - Peru
$19
2.75" Intricate Sphalerite on Quartz - Peru
$25
8.5" Nipomo Sagenite Agate Slab - Freddie Quarry, California
$175
3" Botryoidal Green Smithsonite & Calcite Association - Greece
$595