New old stock faceted glass stones from an American costume jewelry manufacturer that closed decades ago. These stones were never set into jewelry — they have been sitting in storage since the 1950s–1980s, waiting for the right hands.Dark green, oval...

Clear calcite specimen from the Manaoshan Mine, Hunan Province, China. About 1.3 by 1.3 inches. The calcite is crystal clear with internal pyrite speckles that catch light brilliantly from inside the stone. The surrounding matrix has colorful iridescent chalcopyrite inclusions...

Rainbow hematite specimen from Graves Mountain, Georgia, about 1.25 inches long. Blue, green, purple, gold, and red are all visible in this piece depending on how you hold it. The color is not a coating. It is a natural optical...

Benz calcite specimen from the Daye Mine, Hubei Province, China. 1.5 by 1.25 inches. A perfectly formed triangular pyrite crystal sits perched on top of translucent calcite, a natural geometric formation that looks almost engineered but is entirely the result...

Small muslin bag of raw black tourmaline crystals, also called Schorl. Each piece is a natural prismatic crystal with the characteristic fine parallel lines running along its length. Deep opaque black. Not tumbled or polished, so the natural crystal form...

Small muslin bag of genuine natural citrine crystals. Natural citrine is the yellow variety of quartz and most citrine sold commercially is actually heat-treated amethyst. This is the real thing: genuine natural citrine with a warm golden color rather than...

Rainbow fluorite crystal towers approximately 3 inches tall and 1 inch wide, available in five distinct options A through E. Each tower has its own blend of green, purple, and clear color zoning that formed naturally during crystal growth. No...

Large self-standing amethyst crystal geode, 5.5 inches tall by 2.75 inches wide and 3.25 inches deep. The interior cavity is lined with deeply saturated purple amethyst crystals. Collectors call this shade juicy purple, meaning the color is rich and fully...

Mini amethyst geode portal, 2 inches tall by 1.25 inches wide and 1.75 inches deep. The exterior is polished smooth showing the banded agate outer shell. The interior is raw purple amethyst crystal exactly as it grew inside the volcanic...

Malachite stone, 2 by 3 inches, with a polished face showing the signature orbital green banding alongside raw natural sections. The vivid green comes directly from copper content in the mineral. The orbital banding formed in concentric layers over millions...

Malachite slab, 3.5 by 3 inches, with a polished face showing vivid orbital green banding and raw natural sections on the same piece. The concentric ring banding is what makes malachite so distinctive and no two slabs are ever the...

Raw self-standing amethyst geode portal, about 4.25 inches tall by 2 inches wide and 2.25 inches deep. The exterior is completely raw volcanic rhyolite, uncut and unshaped beyond the flat standing base. The interior amethyst crystal is left exactly as...