2M+ REVIEWS | 1000+ NEW GEMS DAILY |
$205.00 USD
Cijena
1662
1

136Crt Most Rarest Color Change Hackmanite iahh04

SKU
Dimenzije (mm)
39.000 x 34.000 x 17.000mm
Težina (cts)
136.000
Treatment
No Treatment
Clarity
SI
Tip
Rough, Specimen
Boje

Hackmanite is an exceptionally rare sulfur-rich variety of sodalite which exhibits tenebrescence (the ability of minerals to change color when exposed to sunlight). It was first discovered in Greenland in 1896 by L. C. Boergstroem, and was later named after Victor Axel Hackman (1866-1941), a Finnish geologist. However, it wasn't until recently (1991) that the first gem-quality hackmanite deposit was discovered in Quebec, Canada.

Hackmanite appears pale to deep violet when first mined, but once exposed to sunlight, the color quickly fades to grayish or greenish-white. When placed back into a dark place or when exposed to short wave ultraviolet light, the violet color slowly returns. The change in color can be seen within seconds of being exposed to sunlight, but the return of the original color can sometimes take up to a week. The tenebrescence effect can be repeated indefinitely, but is detroyed by heating.

The tenebrescence effect seen in hackmanite is the rarest of all gemstone optical phenomena. It is often confused with the 'color change' phenomenon, where materials can shift color under different types of light sources. Another term for tenebrescence is 'reversible photochromism'. A common example of reversible photochromism can be seen in everyday color-change eyeglass lenses. Color-change eyeglasses darken when exposed to sunlight and lighten up again when they are brought indoors. The effect is caused by a photochemical reaction to UV radiation and is known to occur in only a few rare materials.

Pružatelj usluge dostave Dostava u Thailand Dostava u ostatak svijeta
Standard Shipping - Tracked $10.00 / :dani dani $10.00 / :dani dani
:zemlja
Standard Shipping - Tracked je snižen na $30.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
Standard Shipping - Tracked dobiva popust na $30.00 za narudžbe od 0.00 ili više
FedEx $60.00 / :dani dani $60.00 / :dani dani
:zemlja
FedEx je snižen na $50.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
FedEx je snižen na $60.00 na narudžbe s 2 ili više artikala
DHL $60.00 / :dani dani $60.00 / :dani dani
:zemlja
DHL je snižen na $60.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
DHL je snižen na $60.00 na narudžbe s 2 ili više artikala
Express Shipping $10.00 / :dani dani $10.00 / :dani dani
:zemlja
Express Shipping je snižen na $30.00 na narudžbe s 10 ili više artikala
Ostatak svijeta
Express Shipping je snižen na $30.00 na narudžbe s 10 ili više artikala

iahgems
We are best quality natural gemstones company in thailand we sell beautiful natural gemstones high quality and also beads and handicraft our office is in Bangkok Thailand .
:Grad drzava
Provjereno
:ukupne povratne informacije

  • helmrey
    helmrey
    Pozitivan

    Very beautiful stones. Ring and pendant will be made out of these. Quick shipping

  • henswiss
    henswiss
    Pozitivan

    Very beautiful Gemstone, everything is 100% ok

  • gregb1
    gregb1
    Pozitivan

    Thanks

Revizija

Program Gemstone Sheriff omogućuje našim članovima da zatraže reviziju bilo kojeg proizvoda, koju dovršava neovisna :kvalifikacija koja procjenjuje točnost opisa artikla i slika.

Detalji dostave

dostava:
$10.00 10 days putem Express Shipping
Brodovi iz:
Thailand

Načini plačanja

  • stripe
Ovaj prodavač dodaje 10.00% porez na transakcije u Thailand.

Pregled

Vrsta unosa : Standard
Identifikacijski broj proizvoda : 1767719
Počinje : 18th April 2024 07:37 am PDT
* Sve cijene su u :valuti