Browse Categories

Learn Watch Repair
Change a Watch Battery
Replacing Watch Bands
Make Coin Jewelry
How to Test Gold
DIY Ring Sizing

Mens Watch Bands
Womens Watch Bands
Leather Watch Bands
Metal Watch Bands
Rubber Watch Bands
Expansion Watch Bands
Diver Watch Bands

Conoscope Rod Optic Figure Sphere

Conoscope
Your Price: $9.95
Item Number: 35.0470

A conoscope rod is also referred to as an optic figure sphere or an interference sphere. It’s used in gem identification to help determine if a double refractive stone’s optic character is biaxial or uniaxial. To locate a optic figure using a conoscope you would first set your polariscope to the dark crossed position, rotate your stone until you see interference (iridescent) colors or locate the brush, then place your conoscope on the interference color area or the narrowest part of the brush. This test is commonly done to help separate two double refractive stones with similar appearances or refractive index.

  • Sphere Diameter: 10.0mm
  • Keep sphere clean and free of oils and residue
  • Store rod safely to prevent chips to its sphere

Related Products

Polariscope
Polariscope Gemological Instruments
Your Price: $225.00
Polariscope Gemological Instruments
Our polariscope is made for professional gemologist and will help you identify gemstones and birefringence in gems. Everything you need in gemological study is here.
Portable Polariscope
Portable Diamond View Darkfield Light and Polariscope
Your Price: $39.95
Portable Diamond View Darkfield Light and Polariscope
This darkfield viewer with Polariscope is a great way to get a close-up look at diamonds and gemstones. Will help to identify fillings and flaws in stones. Includes a mini maglite for clear viewing.
Gem Identification Made Easy - New 5th Edition Updated & Expanded
Your Price: $38.99
Gem Identification Made Easy - New 5th Edition Updated & Expanded
Enjoy learning the tools of the gem trade from two experts. The authors, Antoinette L Matlins and A.C. Bonann make gem identification fun and interesting, even for those without scientific inclination.

Product Reviews

(0 Ratings, 0 Reviews)


Need Watch Parts?

Free Item with Qualifying Order
Watch Repair Kit Sale
bergeon tools

Google-Translate-Chinese (Simplified) BETA Google-Translate-English to French Google-Translate-English to German Google-Translate-English to Italian
Google-Translate-English to Japanese BETA Google-Translate-English to Korean BETA Google-Translate-English to Russian BETA Google-Translate-English to Spanish