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Subject:Purple Banded Stone Snuff Bottle
Posted By: Kevin Donnelley Fri, Jun 11, 2021 IP: 69.120.217.178 Hi All, |
Subject:Re: Purple Banded Stone Snuff Bottle
Posted By: Kevin Donnelley Sat, Jun 12, 2021 sideview w/ crossed inclusions. the character of the concave lip also comes into view |
Subject:Re: Purple Banded Stone Snuff Bottle
Posted By: Ernest Wilhelm Sat, Jun 12, 2021 I think you have to look in the Quartz family to get the right name for it. |
Subject:Re: Purple Banded Stone Snuff Bottle
Posted By: Steve Gridley Sun, Jun 13, 2021 In my opinion, from your photos it looks like a bottle carved from amethyst. Amethyst is quartz (SiO2) with trace iron that was irradiated by gamma radiation in the host rock during crystal growth. |
Subject:Re: Purple Banded Stone Snuff Bottle
Posted By: Steve Gridley Sun, Jun 13, 2021 Forgot to mention: Color zoning or banding occurs due to changes in mineral composition during crystal growth. |
Subject:Re: Purple Banded Stone Snuff Bottle
Posted By: Kevin Donnelley Mon, Jun 14, 2021 Thank you both for the posts. interesting info, Steve |
Subject:Re: Purple Banded Stone Snuff Bottle
Posted By: Kevin Donnelley Sat, Jun 12, 2021 Correction- height dimension: 1 11/16"; 4.28cm |
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