Pocket Diffraction Grating Spectroscope
Pocket Diffraction Grating Spectroscope, with fixed slit & fixed focus. Allows you to read a gemstone's spectral signature.
The spectroscope is used to analyze light passing through a stone. White light is a combination of all the colors of the visible spectrum: red, orange, yellow, green, blue, indigo, and violet. This is the rainbow we see when light travels through a prism. When white light travels though a stone, one or more of the wavelengths that produce color are absorbed by the gem. The colors that are NOT absorbed are the colors seen when we look at the stone.
The wavelengths that are absorbed by the stone are seen in the spectroscope as vertical black lines in the spectrum. Each stone has a unique absorption spectrum (like a fingerprint of the stone) When identifying a stone we look for a spectrum that is characteristic for that stone.
It helps in separating ruby (chrome) against red or pink sapphire (iron), distinguishing the naturally colored diamonds from those that have been irradiated and identifying natural stones from synthetics by the stone's selective absorption of certain wavelengths. This handheld instrument can be use on loose or mounted stone and considered as the one of the most important tools in identifying gemstones.
Features:
* Heavy-duty and lightweight with its aluminum construction
* Precise, Easy and very convenient to use
* Durable, built to last long
* A top quality instrument giving a brilliant spectrum.
Specifications:
* Length: 55mm
* Diameter: 15 mm
* Material: Aluminum (Heavy Duty)
* Inside Instruction: Diffraction Type
Warranty: 1 years warranty
Accessory included:
* Leather Carry Pouch
* Stylish Packaging box
This photo (see picture 4) show some spectrum of some common stones and photo for illustration purpose only ***
100% Brand New
Tax: We are unable to take any responsibility for any custom duty or import tax. But we will write lower value on package.
Payment details: Paypal only. And we only ship to Paypal address.
Shipping methods: We will ship by Hongkong Post Registered Air Mail with tracking number. Link to track parcel’s status: http://app3.hongkongpost.hk/CGI/mt/enquiry.jsp
Shipping times: All items will be shipped within 48-72 business hours upon receipt of payment (except Saturday and Sunday).
By Post Air Mail, it takes 10-25 days to arrive. (Eastern Europe, the Middle East, South America takes longer time). As delivery time is highly depended on postal service and local customs/duties, please give us enough time to transit. If you do not receive your item on time, please contact us immediately for further assistance. Thank you for your understanding.
Aftersales:
12 months Warranty. Buy with confidence!
We will check the goods quality before shipment. If there are some unexpected problems happen, we hope to solve the problems with buyers through friendly ways.
1. If there are quality problem, buyers can submit argue within 7 days after receiving the goods, buyer must provide photos or video and other evidence to seller for identify. The buyer return the goods to us, and we will send you a new product.
2. Man-made hazards, buyers take full responsibility.
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3) Contact us by email before you leave any negative or neutral feedback, we will deal with you to solve the problems as soon as possible.
Other policies:
Serious Buyer Only! Please place bid only if you agree with all the terms
