99.95% High Purity Niobium Nb Metal cube Element Sample 10mm 6 color

Description

This listing is for  sample of Niobium metal in the form of a beautiful rainbow  cube.
The colors are not produced from paint or dye but instead by the process of anodizing. This process creates an oxide layer on the surface which absorbs, refracts and reflects certain wavelengths of light producing the observed colors. The color depends on the thickness of the oxide layer.
Package :  Niobium  metal cube (  coffee ,gold ,silver ,green ,blue ,purple for option )
cube side length :10mm
weight :8.57g
Nb ≥99.95%
1.
We ship to worldwide，
I will add a tracking number in EBAY
2. Make sure your Address is correct. A phone number is recommended for a more accurate delivery.
3.We try our best to provide you the most reliable, affordable way of shipping service. But sometimes international delivery is highly depended on the local customs and post service. If you do not receive your item on time, please contact us immediately for further assistance. We will be responsible for any damages or losses incurred in the shipping process.
Country
Shipping time
Note
USA ,
Russia（
e-packet dispatch
）
5-12 working days
≥
20 days, contact me
Australia, United Kingdom
15-25 days, sometimes 30 days
≥
30 days, contact me
France
15-28 days, sometimes 30-35 days
≥
35 days, contact me
Brazil, Spain
, Canada
20-40 days, sometimes 40-45 days
≥
45 days, contact me
Other country
Normally 25-30 days to reach
≥
30 days, contact me
After purchase
.
I
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goods
within
12 hours
.
And I
'll
add a tracking
number
to
the
EBAY
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This
tracking number
can query
the
Post.
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