Brazilian Agate Large Slabs
SpiritRock Shop
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Item # LBS0209001
Top Quality
Extra Large
Polished on
Both Sides!
x 9-3/8" x 3/8"
Stunning natural
Brazilian Agate

Quantity Available 1 each

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
, Paraná, Sao 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).
Excellent large natural Brazilian agate end cut with bottom cut flat for display. This excellent specimen has a colorful
display with excellent fortification lines and exceptional growth patterns. There is an area of white to clear quartz
with almost a vug formation. It is EXTREMELY HARD to find specimens this size without massive natural cracks or
other imperfections. We were extremely lucky finding these specimens!
This piece measures approximately 8 x 8 x 1-1/2 " and weighs 7.6 lbs! The face is highly polished!
Rarely does one find a Brazilian agate without natural fractures or cracks. This one is XL and as perfect as nature allows.
There are no visible fractures on this one! This agate has a blindingly high gloss polished finish as well. This XL Agate slab
is from Brazil. It comes with a large plastic stand. The first pictures show the Agate viewed next  to a window. Other pics are
how it would look not backed by light. Polished on both sides. The slab measures 13" by 9 3/8" by 3/8" thick. It weighs 3
pounds 6 oz.
Excellent condition! Beautiful display Agate.
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

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 glass.
Item # LBS0209002
Top Quality
Extra Large
Polished Face
x 8" across
1-3/8 to 1-1/2"
Brazilian Agate
end cut slab!

Quantity Available 1 each