By Stone
- Clearance Beads
- Gemstone Earring Bead Pairs
- Turquoise Earring Slab Pairs
- Rough | Slabs | Specimens
- Mixed Stones | Shapes
- Agates Misc.
- Amazonite
- Amber
- American Jaspers
- Angelite
- Apatite
- Azurite
- Bumblebee Jasper
- Charoite
- Chiastolite | Cross Stone
- Chrome Diopside
- Chrysocolla
- Coral | Dyed
- Coral | Fossil
- Coral | Natural
- Coral | Sponge
- Dinosaur Bone
- Emerald
- Fluorite
- Jaspers, Misc.
- K2 Blue Jasper
- Kyanite
- Lapis Lazuli
- Larimar
- Lemon Chrysoprase
- Lepidolite | Kunzite
- Lions Paw Shell
- Malachite
- Mexico Lace Agates
- Muscovite
- Opal | Australian
- Opal | Blue
- Opal | Mexican Fire
- Opal | Other
- Opal | Pink
- Petrified Wood
- Phosphosiderite
- Pietersite
- Primavera
- Rhodochrosite
- Rhyolite | Thunderegg
- Ruby
- Sage Amethyst
- Septarian Nodule
- Seraphanite
- Sonora Sunset
- Spiney Oyster Shell
- Stichtite | Lavenderite
- Sugilite
- Thunder Egg
- Tiffany Stone
- Tourmaline
- Turquoise | American Misc
- Turquoise | Arizona
- Turquoise | Carico Lake
- Turquoise | Fox
- Turquoise | Kingman
- Turquoise | Mexico
- Turquoise | Number 8
- Turquoise | Other
- Turquoise | Royal Beauty
- Turquoise | Sleeping Beauty
- Turquoise | Sonora Gold
- Variscite | Gaspeite
- Wampum | Quahog Shell
- White Buffalo
- Wild Horse
- Wonderstone
Septarian Nodule
Septarians were formed millions of years ago when the Gulf of Mexico reached what is now Southern Utah. Decomposing sea life, killed by volcanic eruptions, had a chemical attraction for the sediment around them, forming mud balls. As the ocean receded, the balls were left to dry and crack. Because of their bentonite content they also shrank at the same time trapping the cracks inside. As decomposed calcite from the shells was carried down into the cracks in the mud balls, calcite crystals formed. A thin wall of calcite was transformed into aragonite separating the bentonite heavy clay exteriors from the calcite centers. Because of this, the nodules are called Septarians.
Utah Septarian Nodule BIG 14x45mm Matching Pair of Earring Beads
Item #: BP3075E
Only 1 Left!
On Sale
$17.85
Regular price
$19.50