Chelsea Filter CF100
33,61 €
excl. VAT
+ Shipping costs
Available from stock
Dichromatic filter to differentiate between different gemstones viewed together, makes colour changes visible
Availability: In stock
Delivery time: in 3-6 days (EU) 5-21 days (world)
Discription
Chelsea filter
Colour filters allow observations in the range of special wavelengths, e.g. in the red range at 690 nm and in the yellow range at 570 nm. The view through the filters lets some stones appear in different colours and helps to distinguish between gemstones. These filters are also a valuable tool in the assessment of gemstone lots.
Technical details:
■ Filter glass: Ø 19 mm
■ Dimensions (W×W): 45 mm x 55 mm
■ Weight: approx. 16 g
You can find practical examples of the use of color filters in the article: Discovering fakes with color filters.
You can find more information on the examination method with the Chelsea filter or with the Rubin filter in the color filter method article.
You may also like…
-
Polarization device PKS16
191,60 €Polarization device for expanding stereo microscopes. Ideal for observing pleochroism, twin formation or internal stress conditions.
excl. VAT
+ Shipping costs
Add to cart -
Hand-held spectroscope HS1504
347,06 €Precision spectroscope with adjustable slit, wavelength scale and linear prism according to Amici. To determine stones of the same color with the help of absorption spectra.
excl. VAT
+ Shipping costs
Add to cart -
Gemstone refractometer ER601-LED
883,19 €Professionalgemstone refractometer with high-end equipment and quality LED lighting. For high-quality measurement of the refractive index and for checking the authenticity and quality of stones
excl. VAT
+ Shipping costs
Read more -
Gem microscope zoom
874,79 €Powerful stereo microscope with a large zoom range and long working distance, enabling observations with high technical prerequisites
excl. VAT
+ Shipping costs
Add to cart
