Photo Gallery:
Photo Gallery:
FN9-X22Calcite CaCO3
Dimensions: 16 cm x 13 cm x 1 cm
1 cm thick slab from a calcite septarian nodule with translucent yellow calcite lining shrinkage voids in matrix. No damage. Overall size of mineral specimen: 16x13x1 cm. Size of individual crystals: 5 mm.
PWM-UQ6Calcite CaCO3 ,
Dimensions: 16 cm x 13.4 cm x 1.4 cm
A beautiful and sculptural polished cabinet-aized slice from a septarian shale geode of fluorescent yellow and brown calcite lining a vug. 16.0 x 13.4 x 1.4 cm
R3T-8P6Baryte BaSO4 , Calcite CaCO3
Dimensions: 14.5 cm x 12.8 cm x 7.5 cm
A beautiful, unique, sculptural and partially hollow, polished large cabinet-sized rounded half from a septarian shale geode of fluorescent yellow and brown calcite lining a vug. The unique aspect of this geode is the aesthetically placed fan of large, amber baryte blades in the cavity. Baryte is very uncommon from such geodes and this a superb one. This piece comes from Muddy Creek, Orderville, Kane Co., Utah. 14.5 x 12.8 x 7.5 cm
N6Y-5URCalcite CaCO3
Dimensions: 14 cm x 12 cm x 0.8 cm
Under long wave UV light, yellow-white calcite within 14 x 12 x 0.8 cm polished septarian nodule slab (color corrected). Normal light and short-wave UV views also included. RFC C1126.
W24-N1QCalcite CaCO3
Dimensions: 19.8 cm x 17.6 cm x 7.5 cm
Weight: 3.3 kg
Calcite filled septarian nodules from Muddy Creek, Utah are a US classic and are outstanding decorator pieces. Septarian nodules are concretions containing angular cavities or cracks, which are called "septaria". The shrinkage voids in this large sawed and polished concretion are filled with four generations of colorful calcite, first the light and dark brown calcite lining the voids and then the pretty yellow and finally colorless calcite filling the large void. Yellow and brown fluorescence. Weighs 7.3 pounds or 3.3 kilograms.
8A5-LJ5Baryte BaSO4 , Calcite CaCO3
Dimensions: 10.8 cm x 9.6 cm x 4.8 cm
Over the years we have seen tons of Calcite Septarian specimens from Orderville, Utah offered for sale as spheres, bookends, carvings, etc... Seen less often are traditional nodules. Of all the Septarian nodules found in Utah; the rarest & most sought after are the specimens that contain Barite. When material from this location was abundant you could go to any big mineral show & you would see thousands of Calcite Septarian specimens. You would indeed be fortunate to find one containing Barite. And even more fortuitous would be to find one of this quality. Another thing this fine specimen has going for it is the fact that it fluoresces a vibrant yellow.
764-TLXCalcite CaCO3 , Siderite FeCO3
Largest Crystal Size: 150 mm
15 cm diameter calcite filling dark calcite (septarium)
1P0-15XCalcite CaCO3
1 cm thick slab from a calcite septarian nodule. Width : 18 cm x 15 cm.
Specimen bought in 1981.
6HF-P1GCalcite CaCO3
Field of View: 200 mm
One centimetre thick slab from a calcite septarian nodule (15 x 14 cm) with two generations of calcite (brown and yellow).
Rui Nunes' specimen and photo, February 2010.
Collecting septarian nodules
Collecting septarian nodules from one of the many outcrops at Muddy Creek.
Taken by Rick Dalrymple on 7-16-10.
