There are at least 15 major agate-producing areas in Brazil. 12 of these are located in the 5 most southeastern states of the country, Rio Grande do Sul, immediately north of Uruguay, being the best known. Other areas include Santa CatarinaParanáSao Paolo, and Minas Gerais. Two other areas are in the state of Bahia in east central Brazil and another located in the state of Roraima in the extreme northwest. Polyhedroid Agates come exclusively from Paraiba. Agates were discovered in the late 1920's by a geologist named B.V. Freyburg with the Geological Survey of Argentina. Current laws in Brazil prohibit the export of unfinished agate

The agates from Brazil are mostly mined from decomposed volcanic ash and basalt from the late Permian age (248-275 million years ago) In Rio Grande do Sul the "agate mines" are normally just plowed fields in which loose agates are found and collected. Brazilian agates are very colorful stones with some of the most beautiful inclusion and structures imaginable. Agate is very hard and takes an excellent polish. Sadly, most of the market for Brazilian agates is for the "dyed" versions of these stones. When you see a pink, teal, purple or green agate it is dyed not natural. We have a few dyed bookend sets, but prefer to deal only in natural agates. We purchase some cut agates from Brazil, ones with the bottoms cut flat for display or cathedrals(man made cement type coatings).

Our preference is to locate the agates whole and cut and polish them in our shop. We generally do 1/2 nodules or 1/3 cuts with polished faces. We like to find those inner treasures.

We sell most agates this way, but do from time to time cut some slabs for sale. You can make many slabs out of one nodule. Our slabs for sale will normally be cut and not polished. The 3.4 lb perfect agate listed first has the most brilliant shine...like glass.

These Brazilian Agate slabs are Old Stock Agate, procured through reputable sources and some are even from the Comstock Pewter
Factory in Durango Colorado. They purchased these through  the mid to late 90's, then went out of business a few years later. We have not seen this nicer quality agate from Brazil for quite a few years. We believe that Brazil is "high grading" their current stock that they sell, so the collecting world does not have the chance to get the best quality agate at  wholesale pricing. Most of the Brazilian agate imported lately is lower quality agate that is dyed to make it look better or smaller specimens pre-cut and polished as "export" agate.  Brazilian agate rough stock has become harder to find in the past few years, and the quality has decreased significantly

Large Polished 6.25 x 5 x 14-38 Stunning natural Brazilian Agate slab!
Large Polished 6.25 x 5 x 14-38 Stunning natural Brazilian Agate slab!
Large Polished 6.25 x 5 x 14-38 Stunning natural Brazilian Agate slab! Large Polished 6.25 x 5 x 14-38 Stunning natural Brazilian Agate slab!
Item # BAS05091100

Large Polished 6.25" x 5" x 1/4-3/8" Stunning natural Brazilian Agate slab!

$12.00
Quantity Available 1 each

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Item # BAS05091101-Large Polished
Item # BAS05091101-Large Polished-1-2
Item # BAS05091101-Large Polished Item # BAS05091101-Large Polished-1-2
Item # BAS05091101

Large Polished 6 x 4.75 x 1/4 inch Stunning natural Brazilian Agate slab!

$12.00
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Item # BAS05091102-1-2
Item # BAS05091102-1-2
Item # BAS05091102-1-2 Item # BAS05091102-1-2
Item # BAS05091102

Large Polished 7.25 x 3.75 x 1/4 inch Stunning natural Brazilian Agate slab!

$12.00
Quantity Available 1 each

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Item # BAS05091104-1-1
Item # BAS05091104-1-2
Item # BAS05091104-1-1 Item # BAS05091104-1-2
Item # BAS05091104

Thick Polished 6.25 x 6.5 x 3/8 inch Stunning natural Brazilian Agate slab!

$19.95
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Item # BAS05091105-1-1
Item # BAS05091105-1-2
Item # BAS05091105-1-1 Item # BAS05091105-1-2
Item # BAS05091105

Thick Polished 5.75 x 4 x 7/16 inch Stunning natural Brazilian Agate slab!

$17.95
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Item # BAS05091106-1-1
Item # BAS05091106-1-2
Item # BAS05091106-1-1 Item # BAS05091106-1-2
Item # BAS05091106
Sold Out!
Thick Polished 6.5 x 5 x 1/4 inch Stunning natural Brazilian Agate slab!
Thick Polished 6.5 x 5 x 1/4 inch Stunning natural Brazilian Agate slab!
Thick Polished 6.5 x 5 x 1/4 inch Stunning natural Brazilian Agate slab! Thick Polished 6.5 x 5 x 1/4 inch Stunning natural Brazilian Agate slab!
Item # BAS05091107

Thick Polished 6.5 x 5 x 1/4 inch Stunning natural Brazilian Agate slab!

$12.00

Quantity Available 1 each

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Item # BAS05091108-1-1
Item # BAS05091108-1-2
Item # BAS05091108-1-1 Item # BAS05091108-1-2
Item # BAS05091108

Thick Polished 6.5 x 5 x 5/16 inch Stunning natural Brazilian Agate slab!

$17.00
Quantity Available 1 each

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Item # BAS05091109-1-1
Item # BAS05091109-1-2
Item # BAS05091109-1-1 Item # BAS05091109-1-2
Item # BAS05091109

X-Large Polished 9 x 6.5 x 1/4 inch Stunning natural Brazilian Agate slab!

$21.95
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Item # BAS05091110
Item # BAS05091110
Item # BAS05091110 Item # BAS05091110
Item # BAS05091110

Thick Polished 4.5 x 3.5 x 3/4 inch Stunning natural Brazilian Agate slab!

$15.95
Quantity Available 1 each

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Item # BAS05091111-1-1
Item # BAS05091111-1-2
Item # BAS05091111-1-1 Item # BAS05091111-1-2
Item # BAS05091111

Thick Polished 4 x 2.7 x 3/4 inch Stunning natural Brazilian Agate slab!

$15.95
Quantity Available 1 each

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