Amethyst

Amethyst Crystal Cluster, Uruguay, Central America
Sample 400

Amethyst Crystal Cluster, Port Arthur, Ontario
Sample 562

Amethyst Cluster, Brazil
Sample 787

Amethyst, Massive Chevron, Thunder Bay, Ontario
Sample 2868 (DISPLAY CASE)

Binghamite

Binghamite Polished Slab, Crosby, Minnesota
Sample 210

Flint

Flint(true), Cliffs of Dover, England
Sample 700A

Flint nodule, Valley City, Ohio
Sample 2838

Jasper

Jasper Polished Piece, Stromatolite fossils, Mary Ellen Mine, Minnesota
Sample 146

Jasper Polished Piece, Red whirls are Stromatolite fossils(1.7-2.0 billion years old), Mary Ellen Mine, Minnesota
Sample 2856

Quartz

Three Quartz crystals, Mt. Ida, Arkansas
Sample 67

Quartz Crystal, Pennsylvania
Sample 268

Quartz Crystal, Pennsylvania
Sample 268A

Herkimer "Diamonds", Large Quartz Crystals, Fonda, New York
Sample 282/2807 (DISPLAY CASE)

Quartz with Hematite, Soudan
Sample 363A (DISPLAY CASE)

Quartz with Hematite, Soudan
Sample 363B (DISPLAY CASE)

Quartz Crystal Cluster, Mt. Ida, Arkansas
Samples 478

Quartz crystals, Hot Springs, Arkansas
Sample 496

Quartz xls with Hematite inclusions in Specular Hematite, Soudan Mine, Soudan, Minnesota
Sample 563F

Drusy Quartz on Chrysacolla, Old Dominion Mine, Arizona
Sample 598

Quartz crystals on Feldspar, Mt. Ida, Arkansas
Sample 599

Smoky Quartz Crystal, Colorado
Sample 630A

Large Quartz Crystal cluster, Mt. Ida, Arkansas
Sample 647 (DISPLAY CASE)

Polished Quartz Crystal, Brazil
Sample 786

Rose Quartz, Brazil
Sample 791 (DISPLAY CASE)

Opaque Quartz, Brazil
Sample 2804

Quartz, Herkimer Diamond, Fonda, New York
Sample 2806

Quartz crystal, Flat "Squaw", Mt. Ida, Arkansas
Sample 2823

Quartz Geode

Quartz Geode(one half), Bear Creek, Nashville, Indiana area
Sample 112A

Quartz Geode half, Mexico
Sample 764

Quartz Geode, Medora, Indiana
Sample 2827

Sagenite

Sagenite (variety of Quartz), Badlands, South Dakota
Sample 2866