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Gemstones, Minerals & Fossils
Fluorescent Minerals
Interesting stuff under UV
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<blockquote data-quote="Dutch" data-source="post: 581713" data-attributes="member: 19642"><p>This is a very handy tip. Thank you!</p><p></p><p></p><p></p><p>Uranium glass. Most of it is early 20th century. Saw a piece, vase or liquor bottle sold at Pawn Stars for USD1000 or more if i remember correct. I once also saw a very old German advertisement for uranium toothpaste somewhere. Imagine hey!</p><p></p><p>Back to UV...... UV-A and UV-B light is increasingly used in greenhouse horticulture. The plants look much healthier and some produce even more.</p></blockquote><p></p>
[QUOTE="Dutch, post: 581713, member: 19642"] This is a very handy tip. Thank you! Uranium glass. Most of it is early 20th century. Saw a piece, vase or liquor bottle sold at Pawn Stars for USD1000 or more if i remember correct. I once also saw a very old German advertisement for uranium toothpaste somewhere. Imagine hey! Back to UV...... UV-A and UV-B light is increasingly used in greenhouse horticulture. The plants look much healthier and some produce even more. [/QUOTE]
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Gemstones, Minerals & Fossils
Fluorescent Minerals
Interesting stuff under UV
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