A free import export trade leads B2B marketplace since 1996 for manufacturers, suppliers, exporters, importers, buyers, sellers, wholesalers, freight forwarders, shippers, trade shows, exhibits, and export management.
Hello visitor from USA USA - 44 visiting from USA 18 USA Canada 18 Canada Singapore 3 Singapore UK 2 UK India 1 India Australia 1 Australia Belgium 1 Belgium
 
 
 

New Calcite Dichroscope For Gem And Gemstones

Posted at: Offers to Sell and Export | Posted on: Monday 21 June 2010 7:13 am | Poster last visit: Monday 4 April 2011 |

Product Photo:

calcite dichroscope gem gemstones

Similar Products Catalog:
Products Photos Catalog Calcite Dichroscope Photos Catalog

Product Description:

Dichroscope show whether or not a stone is dichroic ( reflects 2 colors) . This can be helpful in differentiating



stones of the same color from one another. Dichroscopes can be useful with identifying gemstones that are still in the rough and when stones are set and difficult to get to with other instruments. Light entering the dichroscope is broken into two polarized rays that have vibrational directions at right angles to each other. The two images in the dichroscope represent the polarized light and the pleochroic colors signifies doubly refractive stones except if the stone is viewed thru the optic axis. Single color in the dichroscope represents singly refractive stones.

The advantage of the dichroscope is that the two pleochroic colors that may be characteristic of a given direction in a doubly-refractive gem are seen side by side. If no dichroism is identified in the first assessment, the stone can be turned and viewed in other directions. Trichroic gems can also be distinguish and will reveal three colors if the stone is viewed in three directions perpendicular to each other.

Buy Now!

Specifications:

* Type: calcite

* Diameter: 15mm

* Length: 60mm

* Body: Metal

Accessories included:

* Leather Case

* User Manual

* Stylish Packaging/ Carrying Box

Warranty: 2 years warranty ( 24 months)

Operating Information :

* Eye viewer: Hold the upper portion of the dichroscope to your eye.

* Gem View: Hand hold and place the gemstone flush to the opening. The hexagonal shape at the end makes it easier to turn the dichroscope during identification.

* Gem Prong: Gem Place Gemstone in the prong holder into the open space as shown above. Preparation Complete Identify Pleochroism. With gemstone visible through the Gem View opening slowly turn the dichroscope exactly 1 fullrotation. Pay close attention to any color differentiation between the two small squares visible inside the dichroscope during the rotation. That number of different colors determines the refractivity and pleochroic properties of the stone. Repeat the rotation a few times to double check the count. If you do not see color changes be sure to turn the gemstone to several other angles and repeat the process above. Sometimes the pleochroism only shows on a particular axis of the gem.



Company Contact:

No member photo
Contact Name: Gary Tong
Company Name: Gain Express Holdings Ltd.
Email: Email
Tel: +852 2362-7800
Fax: +852 2362-7838
Street Address: Flat A, 10/F Yuey
Kong Centre, 45-47 Bulkeley Street
Hunghom, Kowloon, Hong Kong
Website: https://www.gainexpress.com
Member name: GainExpressHoldingsLtd
Country: Hong Kong-HK Hong Kong
Member Since: 18 June 2010
Total Leads: 118 GainExpressHoldingsLtd Import Export Business Leads
Business focus: Refractometer, Loupe, Diamond, Moissanite Identification, Meters, Testers
Chat: Chat with Suppliers
Verify: Safe Import Export Tips



Similar LeadsSimilar Suppliers And Manufacturers Import Export Trade Leads

Solenoid Valve Gem-b-31 For Bangladesh Power System Solenoid Valve Gem-b-31 For Bangladesh Power System - By DongfangYoyik - On Tuesday 26 April 2022 12:43 am: solenoid valve gem-b-31 for bangladesh power system solenoid valve gem-b-31 for bangladesh power system the use of advanced technology absolutely first-class service quality is our constant faith o....

Gem Surface Indoor Gym Room Sports Flooring Gem Surface Indoor Gym Room Sports Flooring - By cnenlio - On Saturday 8 October 2022 7:30 am: gem series enlio sports flooring is a prefabricated multilayer pvc sports flooring that comes in rolls its characteristics make it ideal for basketba....

White Stones / Calcite Pulverizing Machine, Grinding Mill White Stones / Calcite Pulverizing Machine, Grinding Mill - By clirikgrinding - On Tuesday 24 September 2019 3:39 am: calcite pulverizing mill plant usually consists of main unit classifier powder collector dust cleaner induced draft fan muffler sound-proof room....




Calcite Carbonates Mineral Mill Calcite Carbonates Mineral Mill - By clirikgrinding - On Tuesday 26 November 2019 2:33 am: calcite carbonates ore introduction in geology and mineralogy the term quot carbonate quot can refer both to carbonate minerals and carbonate roc....

China Large Power Delicate High Precision Powder Calcite Automatic Gyratory Sifter Separator China Large Power Delicate High Precision Powder Calcite Automatic Gyratory Sifter Separator - By bucketelevator - On Saturday 8 February 2020 9:21 am: china large power delicate high precision powder calcite automatic gyratory sifter separator work principle square swinging screen is also called reciprocating screen if see from the motion trail of screen box the vibratory force produced....

Handmade Gem Stone Studded Sterling Silver Jewelry Handmade Gem Stone Studded Sterling Silver Jewelry - By ARPITGEMS - On Thursday 9 April 2009 11:27 am: gemsí are manufacturer exporter of colored gem stone studded sterling silver jewelry from jaipur india we are a life member of jewellers associat....

Quad Gem Dmx 256 Led Dmx Quad Gem Dmx 256 Led Dmx - By yueyuanlights - On Saturday 18 April 2009 9:27 am: gem dmx 256 led dmx power supply ac110v 250v frequency 50 60hz power 20w control dmx512 control channels 6 channels led ....

Six Gem Led Dmx Disco Light Six Gem Led Dmx Disco Light - By yueyuanlights - On Saturday 18 April 2009 9:29 am: gem led dmx disco light power supply ac110v 250v frequency 50 60hz power 20w control dmx512 control channels 4 channels b....




TradersCity Free Import Export Trade Leads B2B Board  Offers to Sell and Export

TradersCity.com shall not be held liable for any user posted/submitted content including but not limited to trade leads, profiles, images, and any other data. TradersCity.com does not and did not verify any of users posted/submitted data nor is implicitly or explicitly recommending these business offers. TradersCity does not verify truthfulness, accuracy, completeness, nor legality of any businesses, services, and leads posted here. TradersCity does not represent Sellers or Buyers in any transaction between users of the website and is unable to make any opinion in regard to their performance in any transaction. TradersCity neither guarantees nor undertakes in any dispute between sellers and buyers. Protect your business from fraud by trading safely