For a country as
large and rich in gems as Brazil, there are surprisingly few
corundum deposits. The first two described below were apparently found and
mined by an American stone dealer who "turned the sapphires into
beads and the rubies into precision cabs", most of which he sold in
New York. The legend continues that he saved the best crystals
until recently.
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SERRA DOS
POMBAS (PIGEON MOUNTAIN), BRUMADO RUBIES |
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Etched crystals have a
much richer red interior than the outside suggests.
On the right are the two largest and finest of the lot
of about 200 specimens (left) totaling 14,750 carats (2,950
grams) that were saved. As the mine is shut down
(exhausted I was told), there probably won't be many of
these around. |
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BAHIA SAPPHIRES |
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vic. RIO
DE JANEIRO |
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Some large drum-shaped prismatic sapphires
have been recovered in the hills surrounding this famous city. |
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LOCALITY UNKNOWN |
Large pale blue
sapphire specimens, often called boat anchors, come from wherever this
is (Bahia?). They seem to be altering to a silvery mica called margarite. The deposit
appears to be quite massive, and this material has been imported into
the U. S. by the ton. It may be from the same locality as the five
big ones below. |
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GIANT SAPPHIRE
CRYSTALS |
Five huge crystals, probably from BBahia, were sent to me
in late 2009 for - er - "cleaning" (owner knew I
would not let them go). These were the
best and largest crystallized specimens, saved from allegedly about
70,000 tons of material extracted from the mine. They
were purchased for the collection in June, 2010. The
largest of these, a doubly terminated barrel-shaped prism (left
image), weighs over 35 pounds. The second image shows
an unusual "bent" crystal, whose unusual habit may be
explained by inclusions or ramp dislocations - any ideas? |
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There are a couple of recent
localities related to me by email. (to be described) |
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