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Radiolaria Earrings: Spumellaria
These earrings are based on Spumellaria, a type of Radiolaria. Radiolaria are aquatic protozoan life forms that develop a fantastically intricate silica-containing shell. The sea floor is composed of their microscopic fossilized skeletons. The Radiolarian 'Spumellaria' is defined by its elaborate sphere-within-a-sphere construction. The delicate spines on the shell are important for the buoyancy of the plankton during its lifetime, but break off when the shell is deposited in the sea bed. This design was inspired by a drawing by the German naturalist, Prof. Ernst Haeckel.
The earrings are approximately 1.6 cm (0.6 in) in diameter, including spikes, and each earrings weighs 1.5 g.
These earrings have sharp points and should be worn with caution.
The earrings are available in solid sterling silver or 14K gold plated brass, finished with nickel-free sterling silver or gold plated silver hooks to match, and are ready for gift giving with a gift box, polishing cloth, and care instructions.
All orders over 50 Euro ship FREE. Under 50 Euro shipping = 5.50 €
Jewelry Shipping
Jewelry in stock at Ontogenie will be ready for shipping within 1-3 days. Jewelry on backorder requires 3-4 weeks production time before it can be shipped.
Transit times:
- Germany: 3-4 days
- EU: 3-7 days
- Europe, non-EU, except for Switzerland*: 5-7 days
- USA: 9-12 days
You will be notified by mail when your order ships and given a tracking number so that you can follow your shipment.
Your jewelry will be gift-wrapped in original Ontogenie packaging.
Please note that packages may be delayed for reasons beyond my control. In the unlikely event that your jewelry shipment is held by your local customs office, you are responsible for paying any customs fees, duties, tariffs, or import taxes incurred.
*No shipping to Switzerland or Canada.
**Orders to the United Kingdom of more than 135 GBP/158 Euro will incur import duties that must be paid by the customer at the time of receipt of the package in the UK. If you do not pay the import duties, the jewelry will be destroyed or returned, and your order will not be refunded.**
Art Prints, T-Shirt, Mug, and Tote Bag Shipping
Printing of these products requires 2-7 days fulfillment time at a printing facility as close to your location as possible. After fulfillment, your shipment should arrive in 3-10 business days.
Jewelry is limited to stock on hand. If you are interested in a specific piece that isn't in stock, please contact me.
T-shirts, hoodies, mugs, tote bags, and art prints are printed at a shop near you and are always in stock.
EU GPSR Compliance Information
T-Shirts & Hoodies
Manufacturer contact information
Name: Gelato
Email address: support@gelato.com
Postal address: Dronning Eufemias gate 8, 0191 Oslo, Norway
Age guidelines: For adults
Warranty (consumer-sales only): 2 years
Product safety compliance:
Comply with regulatory requirements on dangerous substances (lead, cadmium, phthalates, and formaldehyde).
Comply with regulatory requirements on flammability.
Art Prints
Manufacturer contact information
Name: Gelato
Email address: support@gelato.com
Postal address: Dronning Eufemias gate 8, 0191 Oslo, Norway
Age guidelines: For adults
Warranty (consumer-sales only): 2 years
Ceramic & Enamel Mugs
Manufacturer contact information
Name: Gelato
Email address: support@gelato.com
Postal address: Dronning Eufemias gate 8, 0191 Oslo, Norway
Age guidelines: For adults
Warranty (consumer-sales only): 2 years
Product safety compliance:
Comply with EU regulatory requirements on dangerous substances (lead and cadmium) leachable from ceramic or enamel drinkware.
Comply with regulatory requirements on flammability.
Tote Bags
Manufacturer contact information
Name: Printful
Email address: support@printful.com
Postal address: Raina bulvaris 25, Riga, Latvia, LV-1050
Age restrictions: For adults
EU Warranty: 2 years
Jewelry
Manufacturer contact information
Name: Ontogenie Science Jewelry
Email address: ontogenie3d@gmail.com
Postal address: Schroeterstr. 6A, 07745, Jena, Germany
Age restrictions: For adults
EU Warranty: 2 years
Metal Compositions
Silver: Silver 93%, Copper 4%, Zinc 3%
14K gold plated Brass: Copper 80%, Zinc 15%, Tin 5% with a 0.5 micron layer of gold
Bronze: Copper 90%, Tin 10%
Chains and Earring hooks are made of silver or 14K gold plated silver and are nickel-free, lead-free, and cadmium free.
![Spumellaria Radiolarian Earrings [Ontogenie Science Jewelry] micropaleontology](http://ontogenie.com/cdn/shop/products/spumellaria_earrings_1_43.jpg?v=1651509836&width=1000)