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GEM Refractometer - Refractive Index Chart 125+ Stones

n/a

  • $ 799


Item Description: Laminated Gemstone Refractometer - Refractive Index Chart of over 125 different Gemstones

GEM REFRACTIVE INDEX CHART (8.5" x 11" - 1 Page, 2 Sides)

Name

Structure

Hardness

Specific Gravity

Refractive index

Doubly Refracting (bi-refraction)

Achroite ( Tourmaline )

Trigonal

7.5

3.06

1.62 - 1.64

0.018

Agate ( Chalcedony)

Trigonal

7

2.61

1.53 - 1.54

0.004

 

(THIS IS A SAMPLE OF WHAT'S ON IT!)


National Industrial Supply

2767 Maricopa Street, Torrance, CA 90503, USA

Phone # 310.748.6858  -  Fax # 310.833.7306

125+ Gemstones are labeled!

A Gem Refractometer without a Refractive Index Chart is like a thermometer without the reference to what is hot or cold!

A copy of this comes with each of our Gem Refractometers, but this listing is for a laminated version that will last a much longer time.


For LARGER ORDERS, please check out our eBay Store! My Stores Logo<--- click the tag!


International Clients:


We ship packages via US Postal's Global Priority Mail/Air Mail for $6.00 ($4.00 to Canada). It takes about 3-8 business days arrive (please note that there can be Customs delays from time to time).

Canada: $4.00                 Rest of the World: $6.00

COMBINE ITEMS AND SAVE ON SHIPPING!

 

Questions? Larger orders? Please e-mail us!

National Industrial Supply My Stores Logo
30777 Rancho California #891420
Temecula, CA 92589, USA
Sales: 951.308.9269
Fax: 310.833.7306 

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