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I still photographed the crystals under the microscope to better illustrate their quality
Franckeite is a relatively rare iron
It is so unbelievably rare to find good size
This crystal group exhibits the classic "sword-shaped" habit with high luster
this specimen is a fine pseudomorph / cast consisting of hollow and thin cavities of Quartz replacing the original mineral
Opal (var: Opal-AN) / (var: Hyalite Opal) (“Blood Vessel Opal”) Mogok I still photographed the crystalsA rarely seen matrix specimen of Hyalite from San Luis Potosi, Mexico featuring bead like gemmy, colorless spheres which are included with a small amount of orange iron oxide to give it the blood vessel like inclusions, hence the nickname Blood Vessel Opal. Interestingly enough, the piece has a dual texture effect where some of the globules are perfectly smooth, while others have an alligator skin appearance on the surface. One can spend a great deal
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