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The amethyst geodes from Uruguay are mined from the same rock formation as their relatives just to the north across the border into southern Brazil and are igneous (volcanic) in origin.  Uruguay amethyst, however, can usually be differentiated from its Brazilian relatives by the typically smaller crystal size and (in the case of the higher quality amethyst), the color of Uruguayan amethyst is darker overall.  Many of the Uruguay amethyst geodes also contain agate in their shells.  Most Uruguay amethyst is mined from open pit mines and the geodes/crystals must go through a sequence of wash/dry cycles to clean off tenacious mud in order to expose the amethyst crystals.  It is difficult to acquire whole geodes from this area due to the very hard basalt matrix that the geodes formed in and the tendency for the geode to crack open on its own either through natural processes or during the course of mining, so usually an amethyst half/section or plate is most commonly seen.  These geodes are approximately 130 million years old. 

We are offering a section of naturally opened amethyst geode halves with rough or polished edges and also specimens that have an amethyst geode section or half still embedded in their host basalt matrix.  Please see item descriptions for more details on each specimen.

Simple Shipping:  In the United States, all orders over $100 receive free shipping!  Order subtotal $5 or less = $4.00 shipping; $5.01-$20.00 = $6.95 shipping; $20.01-$60.00 = $9.95 shipping, $60.01-$99.99 = $13.60 shipping, and all orders $100 or more ship for FREE!  International orders please contact us or use our secure shopping cart for your shipping costs.  If you do not want to order online through our secure shopping cart, please call or text Mike at (309) 335-6740 between 9am-5pm Central M-F.  If I cannot answer, please leave a voicemail with your name, return phone number, and a message that you would like to place an order over the phone.  I will return your call as soon as I am able, thank you!

URAM 100
URAM 100

6.9 x 6.8 x 2.5 in (cm?)

$ 100.00


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URAM 101
URAM 101

8.5 x 3 x 4 in (cm?)

$ 60.00


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URAM 110
URAM 110

6.6 x 7.25 x 2.5 in (cm?)

$ 75.00


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URAM 112
URAM 112

4.25 x 2 x 3.5 in (cm?)

$ 25.00


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URAM 113
URAM 113

6.2 x 3.75 x 1.5 in (cm?)

$ 50.00


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URAM 115
URAM 115

4.5 x 4.75 x 2.75 in (cm?)

$ 35.00


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URAM 116
URAM 116

8 x 4.3 x 3.6 in (cm?)

$ 90.00


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URAM 117
URAM 117

3.6 x 1.8 x 2.1 in (cm?)

$ 20.00


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URAM 119
URAM 119

5.75 x 4.5 x 4.5 in (cm?)

$ 80.00


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URAM 120
URAM 120

6.5 x 5.25 x 4.6 in (cm?)

$ 90.00


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URAM 121
URAM 121

8.9 x 6.25 x 4. in (cm?)

$ 150.00


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URAM 35
URAM 35

9.5 x 6 x 5.5 in (cm?)

$ 140.00


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URAMB 02
URAMB 02

7 x 5.5 x 6 in (cm?)

$ 60.00


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URAMB 03
URAMB 03

4.6 x 1.75 x 3.4 in (cm?)

$ 20.00


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URAMB 04
URAMB 04

5.5 x 3.4 x 2.75 in (cm?)

$ 25.00


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URAMB 05
URAMB 05

3.75 x 2.5 x 3.8 in (cm?)

$ 25.00


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URAMB 12
URAMB 12

6.6 x 4.75 x 3.25 in (cm?)

$ 45.00


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URAMB 13
URAMB 13

5.3 x 5.5 x 2.6 in (cm?)

$ 30.00


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URAMB 14
URAMB 14

5.8 x 4.75 x 2 in (cm?)

$ 30.00


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URAMB 21
URAMB 21

9.5 x 6.3 x 3.5 in (cm?)

$ 40.00


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