Question
spec-collagex3
Hello, I am curious of this stone.
A BRIEF BACKGROUND
I found he specimen approx 12 years ago. "Caught the Eye"
Had it in a box - Going thru stuff - Showed to daughter during visit
( her coments " Cold & Greasy)
Took to a jeweler He looked at it with 10 x loupe and explained a few things
Main theme of his examination was the inclusions and how light was radiating out of the stone.
He did say He had several trips to Africa and how 40-60 % of rough would be lost to cutting.
He gave me a contact for futher testing.
Thus started this excercise free time of the evenings.
The digital photos , are; so not consistant ; change dramaticaaly with lighting.
When u view under lighting with loupe (cheap magnafier)
Specimen/ then 2-4 inches or so , one sees intesnse white metallic light with rainbow spectrum.
Put a 650 nm laser ponter on top surface (Darkroom) and red light just dance inside as i moved pointer around surface. No passing of light.
When held up to sun rays u can se thru it it makes the interior clear.
Respectfully,
\
Mitch
AnswerHi Mitchell,
Nice photos but they really don't tell me anything. It is a mineral most likely but what mineral, is up for grabs. is it double refractive? What is the specific gravity? These two properties would tell me more than anything. A refractive index would positively identify it. Many folks ask the same from a photo but that is the least identifier. I would need to inspect and test it in person to give you an answer. thanks for asking,
Peter
