Geology Superstore
Geology Superstore

Optical Calcite – Iceland Spar

Iceland spar mineral specimens from Santa Eulalia, Chihuahua, Mexico, samples are crystal clear, exhibit perfect rhombic shape and excellent double refraction. They are available in 2 sizes only and will come supplied in a card tray with a label.

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  •  Delivery & Return


    We ship to all 50 states, Washington DC.
    All orders are shipped with a UPS tracking number.
    Always free shipping for orders over US $200.
    During sale periods and promotions the delivery time may be longer than normal.


    Elessi will accept exchanges and returns of unworn and unwashed garments within 30 days of the date of purchase (14 days during the sales period), on presentation of the original till receipt at any store where the corresponding collection is available within the country of purchase.

    Your return will usually be processed within a week to a week and a half. We’ll send you a Return Notification email to notify you once the return has been completed.
    Please allow 1-3 business days for refunds to be received to the original form of payment once the return has been processed.


    Give us a shout if you have any other questions and/or concerns.
    Phone: +1 (23) 456 789

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Iceland spar is a clear variation of calcite, it exhibits the rhombic crystal system of calcite perfectly, the crystals easily divide into rhombs, making them well sought after for a variety of reasons. Originally reported from Helgustadir Mine, Eskifjord, Iceland, hence its name. One of the most remarkable aspect of Iceland spar is its refractive properties. When light passes through one of the crystals, it is divided into two rays at different angles which results in a double refraction effect. Essentially, anything seen though the crystal is seen in double. This can best be seen if you place the calcite over some text, it will appear as if it has been printed twice. These mineral samples come from Santa Eulalia, Chihuahua, Mexico and are available in 2 sizes, they will come supplied in a card tray with an information label.

Weight 10 g
Specimen Size

1.5" x 1.5", 2" x 2"

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SKU: MIN-198 Category:
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