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Polished Ametrine (Blend of Yellow and Purple Quartz) Slice 14g For Sale


Polished Ametrine (Blend of Yellow and Purple Quartz) Slice 14g
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Polished Ametrine (Blend of Yellow and Purple Quartz) Slice 14g:
$10.00

Polished Ametrine (Blend of Yellow and Purple Quartz) Slice 16gThis is an ametrine (amethyst+citrine = ametrine) slice that showcases some of the optical properties of quartz. I did not cut and polish this particular sample and so this slice is a bit different from the other quartz slices available for sale. This slice is particularly good at highlighting polysynthetic Brazil Law twinning and color zoning in ametrine. You will want a polariscope to fully appreciate the ametrine slice. The first photo is a view looking down the c-crystallographic axis with transmitted plane polarized light. The second photo shows the same view with crossed polarizers, where the polysynthetic Brazil Law twinning is apparent. The video shows the slice at first with transmitted plane polarized light highlighting color zoning in the ametrine and then with crossed polarizers highlighting the polysynthetic Brazil Law twinning in this sample. We then add in a marble to act as a converging lens and generate a variety of interference figures depending on location in the slice! The last three photos show off the slice under ambient lighting conditions with a ruler for scale. Although there is not an ametrine slice featured in the video \"Snellius Minerals LLC Quartz Slice\" on Youtube, this educational video goes over many of the concepts you would need to understand the ametrine slice. Also check out the amethyst, smoky quartz, citrine, and rock crystal slices if you want the complete set of quartz slices demonstrated in the Youtube video.

Each of these slices is unique, as they are cut from natural crystals. Thank you, and check out some of our other items for sale. We aim to provide the nerdiest mineral samples possible! Combined shipping available for many items.


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A Traveling Exhibition from Russell Etling Company (c) 2011