Bento board · neon hairline · brutal drop
SKU: 36100441979
Ships within 48 hours · Estimated delivery Sep 15 - Sep 20
All about (and reviews of) binocular (head-worn) magnifiers- especially the surgeons-type
but it's useful guide
Can be used anywhere
Brazillianite
it detects double refraction
Digital refractometer by Presidium (model Prim II) Digital scales - regular lines - resolution 0.001g All about (and reviews of)Summary Made by Presidium, the leading manufacturers of gem testing equipment. There is downloadable software to connect it to your computer. The reading is then displayed along with a list of stones that match the reading, and you can click on each stone to see more information (constants). This saves time looking up charts. Comes with a USB cable (connects to any computer mobile device USB mains adaptor). Works with loose stones and also stones
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