3.9" SEPTARIAN DRAGON STONE Polished Geode End Cut - Utah

Description

Septarian Geode
Size:
3.9" x 3.75" x 1.23"
99mm x 95mm x 31mm
Weight:
13.9 oz
394 grams
Location:
Utah
3.9" Septarian geode end from from southern Utah, about 15 miles from Zion National Park.  This is also known as Dragon Stone.  These Septarian crystals were formed sometime during the Cretaceous Period, between 144 to 65 million years ago.  During this period of time what is now known as the Gulf of Mexico extended into present day Utah, forming a vast interior sea.  Decomposing sea life had an attraction for the surrounding sediment, forming mud balls under the sea.  Tide and wave action rolled these balls around, creating sedimentary balls of a larger size.  As the ocean receded, the balls were left to dry and crack, allowing Calcite crystals to form within them.  A thin wall of Calcite transformed into Aragonite, dividing the shale exteriors from the Calcite crystals.  The name Septarian is derived from these dividing walls (septum in Latin.)  The geode was then cut on the end and polished to produce this piece.  Piece weighs over 3/4 lb.  A great geode for display, collection and study.
Save shipping costs by combining auction items for a period of up to a couple weeks. Shipping cost is calculated based upon actual shipping and packaging costs depending on delivery address and item weight and size with our discounted postal rates. We send out combined shipping invoices after all auctions have ended for the day or you can request one at any time.  If for any reason you are unhappy with your purchase, you may return your item within 14 days of delivery for a full purchase price refund, shipping costs are non-refundable.
DH Minerals is backed by 100 percent positive feedback with over 10 years experience.  Feel free to send us a message with any questions you may have.  Add dh-minerals to your Favorites on eBay as we'll be listing many new quality mineral and fossil specimens and carvings weekly year-round!