Pogledaj sve fotografije (8)
Niste licitirali na ovoj dražbi.
Rare Andesine 4.83 ct Rich Green Color Untreated SKU-12
- SKU
- Dimenzije (mm)
- 12.140 x 9.940 x 6.930mm
- Težina (cts)
- 4.830
- Treatment
- No Treatment
- Shape
- Oval
- Tip
- Faceted
- Boje
-
Andesine occurs in various colors, from red and honey-red to orange, yellow, champagne, and green. The semi-precious gemstone often shows greenish hints and a faint metallic shiller (or labradorescence). Some are even color-changing, displaying different hues under different types of lighting.
All plagioclase feldspars are composed of albite (sodium aluminum silicate) and anorthite (calcium aluminum silicate) in varying compositions. Other plagioclase minerals include bytownite, moonstone, oligoclase, and spectrolite, among others.
Andesine has a ratio of 30 to 50 percent anorthite to 50 to 70 percent albite, so some mineralogists classify it as an albite variety.
In terms of habits, andesine rarely forms as crystals; when it does, they’re usually small. Andesine crystals often display Albite, Pericline, and Carlsbad twinning. Usually, andesine is found in granular or massive habits.
Here’s an overview of andesine’s mineral traits:
Chemical formula: (Na,Ca)[Al(Si,Al)Si2O8]
Mohs hardness: 6 to 6.5
Color: White, gray, green, yellow, red, orange, pink, champagne, golden
Crystal structure: Triclinic
Luster: Sub-vitreous or pearly
Transparency: Transparent to opaque
Refractive index: 1.56 to 1.57; Increases with higher calcium content
Density: 2.66 to 2.68; Increases with higher calcium content
Cleavage: Perfect on {001}, good/distinct on {010}
Fracture: Subconchoidal or irregular/uneven
Streak: White
Luminescence: Fluorescence (weak); Red, blue, pink, yellow, or yellowish-brown in SW-UV, violet in MW-UV, and yellowish-white, orange, or orange-red in LW-UV
Birefringence: 0.009
Pleochroism: None
Dispersion: Weak to none
Optical effects: Sometimes color-changing
Feel free to to “make an offer” on our other items :)
We Accept Payment through
Paypal
Direct Deposit
Credit Cards
- SKU
- Dimenzije (mm)
- 12.140 x 9.940 x 6.930 mm
- Težina (cts)
- 4.830
- Treatment
- No Treatment
- Shape
- Oval
- Tip
- Faceted
- Boje
-
Andesine occurs in various colors, from red and honey-red to orange, yellow, champagne, and green. The semi-precious gemstone often shows greenish hints and a faint metallic shiller (or labradorescence). Some are even color-changing, displaying different hues under different types of lighting.
All plagioclase feldspars are composed of albite (sodium aluminum silicate) and anorthite (calcium aluminum silicate) in varying compositions. Other plagioclase minerals include bytownite, moonstone, oligoclase, and spectrolite, among others.
Andesine has a ratio of 30 to 50 percent anorthite to 50 to 70 percent albite, so some mineralogists classify it as an albite variety.
In terms of habits, andesine rarely forms as crystals; when it does, they’re usually small. Andesine crystals often display Albite, Pericline, and Carlsbad twinning. Usually, andesine is found in granular or massive habits.
Here’s an overview of andesine’s mineral traits:
Chemical formula: (Na,Ca)[Al(Si,Al)Si2O8]
Mohs hardness: 6 to 6.5
Color: White, gray, green, yellow, red, orange, pink, champagne, golden
Crystal structure: Triclinic
Luster: Sub-vitreous or pearly
Transparency: Transparent to opaque
Refractive index: 1.56 to 1.57; Increases with higher calcium content
Density: 2.66 to 2.68; Increases with higher calcium content
Cleavage: Perfect on {001}, good/distinct on {010}
Fracture: Subconchoidal or irregular/uneven
Streak: White
Luminescence: Fluorescence (weak); Red, blue, pink, yellow, or yellowish-brown in SW-UV, violet in MW-UV, and yellowish-white, orange, or orange-red in LW-UV
Birefringence: 0.009
Pleochroism: None
Dispersion: Weak to none
Optical effects: Sometimes color-changing
Feel free to to “make an offer” on our other items :)
We Accept Payment through
Paypal
Direct Deposit
Credit Cards
Pružatelj usluge dostave | Dostava u Thailand | Dostava u ostatak svijeta |
---|---|---|
FedEx | $35.00 / :dani dani | $35.00 / :dani dani |
:zemlja
FedEx je snižen na $35.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
FedEx je snižen na $35.00 na narudžbe s 2 ili više artikala
|
||
Express Shipping | $55.00 / :dani dani | $55.00 / :dani dani |
:zemlja
Express Shipping je snižen na $55.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
Express Shipping je snižen na $55.00 na narudžbe s 2 ili više artikala
|
||
Registered Shipping | $10.00 / :dani dani | $10.00 / :dani dani |
:zemlja
Registered Shipping je snižen na $10.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
Registered Shipping je snižen na $10.00 na narudžbe s 2 ili više artikala
|
-
Pozitivan
Amazing
-
Pozitivan
Brilliant color, very nice stone
-
Pozitivan
Beautiful color, very bright stone, I love it
Zašto korisnici nadmašuju same sebe?
Kada se postavi ponuda, to je maksimalni iznos koji je korisnik spreman ponuditi za proizvod. Naš sustav će zatim automatski licitirati u ime tog korisnika, postupno povećavajući licitaciju kako bi zadržao svoju poziciju ponuditelja najviše, do navedenog maksimuma.
Kada postoji ikona koja označava "Automatsku ponudu", to znači da naš sustav aktivno daje ponude za korisnika na temelju njihove maksimalne ponude. Ovo se može činiti kao da korisnici sami sebe nadmašuju, ali to je jednostavno rezultat ažuriranja ponude sustava kako bi odražavala maksimalno ograničenje korisnika.