Contact Us At: Boomologist@GotHotRocks.com
THE "GRAND-DADDY" OF THEM ALL!
A very large triangular shaped specimen of Autunite on host rock
of Granite Pegmatite with Mica and Smoky Quartz.. The Autunite coating
is very thick and measures approximately 17.25 X 14.0 X 11.0 inches. The
entire specimen weighs just over 44 pounds and averages 4 inches thick.
This specimen is very brilliant when exposed to
Long Wave Ultra Violet Light. I have also been told by many of my customers
that Autunite is very spectacular when exposed to Short Wave Ultraviolet.
Below are close up pictures of the crystal structure taken under Long wave
Ultraviolet light. There are hundreds of "rosettes" made of autunite crystals.
Due to the size of this specimen I was unable to photograph the entire
stone in one picture under Uv light.
To photograph Autunite in Ultraviolet light the camera brightness must
be turned down due to the fluorescence. The actual specimen is brighter
than in the photos.
This specimen will easily peg
the meter on a CDV 700 counter on its highest setting with shield open
and the probe 1 1/2 inches away from the surface. With shield closed
it gives readings of 3 to 6 Mr/Hr. Please view diagram at bottom
of page which shows readings at various points.
Above are pictures of some of the hundreds of "rosettes".
Photo taken from about 3.5 feet and covers about 1/4 of the stone.
Above you can see a few of the rosettes and the crystal structure up close.
These pictures were taken about 3 inches from the stone.
A single rosette.
A few rosettes.
Hundreds of rosettes.
The specimen is shaped approximately as in the above diagram.
Readings were taken at the points highlighted in Blue. Below are
Point #1= 30,000 C/m with shield open. 3Mr/Hr with shield closed.
Point #2= 30,000 C/m with shield open. 5Mr/Hr with shield closed.
Point #3= 30,000 C/m with probe approximately 1 1/4" from surface with
5Mr/Hr with shield closed and probe at surface.
Point #4= 30,000 C/m with probe approximately 1 1/2" from surface with
6Mr/Hr with shield closed and probe at surface.
Point #5= This is on the back side of the specimen where a reading
of 1Mr/Hr can be
measured with the shield closed. It does not change with the shield open.
Because of the potential hazards associated with Radiation
any buyer must demonstrate the knowledge to safely store and handle
specimens of this magnitude. Buyer assumes any and all liability associated
with the proper or improper use and/or storage of this specimen and will
be required to sign a statement to that effect.
We reserve the right to refuse sale to anyone.
Go To Autunite Page: