Alle Fotos anzeigen (8)
Sie haben bei dieser Auktion nicht geboten.
Rutilated quartz, 13.86ct, black needles making that stone unique!
- Artikelnummer
- Abmessungen (mm)
- 21.500 x 14.500 x 7.250mm
- Gewicht (cts)
- 13.860
- Clarity
- SI
- Treatment
- No Treatment
- Farben
-
Pure quartz, traditionally called rock crystal or clear quartz, is colorless and transparent or translucent, and has often been used for hardstone carvings, such as the Lothair Crystal. Common colored varieties include citrine, rose quartz, amethyst, smoky quartz, milky quartz, and others. These color differentiations arise from chromophores which have been incorporated into the crystal structure of the mineral. Polymorphs of quartz include: α-quartz (low), β-quartz, tridymite, moganite, cristobalite, coesite, and stishovite.
Quartz is a hard, crystalline mineral composed of silicon and oxygen atoms. The atoms are linked in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar.
Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at 573 °C (846 K; 1,063 °F). Since the transformation is accompanied by a significant change in volume, it can easily induce fracturing of ceramics or rocks passing through this temperature threshold.
There are many different varieties of quartz, several of which are semi-precious gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Eurasia.
The most important distinction between types of quartz is that of macrocrystalline (individual crystals visible to the unaided eye) and the microcrystalline or cryptocrystalline varieties (aggregates of crystals visible only under high magnification). The cryptocrystalline varieties are either translucent or mostly opaque, while the transparent varieties tend to be macrocrystalline. Chalcedony is a cryptocrystalline form of silica consisting of fine intergrowths of both quartz, and its monoclinic polymorph moganite. Other opaque gemstone varieties of quartz, or mixed rocks including quartz, often including contrasting bands or patterns of color, are agate, carnelian or sard, onyx, heliotrope, and jasper.
Please pay your stones in between
five days or contact me. Otherwise I need to cancel the deal.
If there is anything you shouldn't be satisfied with please just let me now and we will find a way to solve every problem. My aim is to make you happy with beautiful stones of good quality, good communication is the easiest way to understand the others´ needs.
- Artikelnummer
- Abmessungen (mm)
- 21.500 x 14.500 x 7.250 mm
- Gewicht (cts)
- 13.860
- Clarity
- SI
- Treatment
- No Treatment
- Farben
-
Pure quartz, traditionally called rock crystal or clear quartz, is colorless and transparent or translucent, and has often been used for hardstone carvings, such as the Lothair Crystal. Common colored varieties include citrine, rose quartz, amethyst, smoky quartz, milky quartz, and others. These color differentiations arise from chromophores which have been incorporated into the crystal structure of the mineral. Polymorphs of quartz include: α-quartz (low), β-quartz, tridymite, moganite, cristobalite, coesite, and stishovite.
Quartz is a hard, crystalline mineral composed of silicon and oxygen atoms. The atoms are linked in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar.
Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at 573 °C (846 K; 1,063 °F). Since the transformation is accompanied by a significant change in volume, it can easily induce fracturing of ceramics or rocks passing through this temperature threshold.
There are many different varieties of quartz, several of which are semi-precious gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Eurasia.
The most important distinction between types of quartz is that of macrocrystalline (individual crystals visible to the unaided eye) and the microcrystalline or cryptocrystalline varieties (aggregates of crystals visible only under high magnification). The cryptocrystalline varieties are either translucent or mostly opaque, while the transparent varieties tend to be macrocrystalline. Chalcedony is a cryptocrystalline form of silica consisting of fine intergrowths of both quartz, and its monoclinic polymorph moganite. Other opaque gemstone varieties of quartz, or mixed rocks including quartz, often including contrasting bands or patterns of color, are agate, carnelian or sard, onyx, heliotrope, and jasper.
Please pay your stones in between
five days or contact me. Otherwise I need to cancel the deal.
If there is anything you shouldn't be satisfied with please just let me now and we will find a way to solve every problem. My aim is to make you happy with beautiful stones of good quality, good communication is the easiest way to understand the others´ needs.
Versandanbieter | Versand nach:Land | Versand in den Rest der Welt |
---|---|---|
Standard Shipping - Tracked | $12.00 / :Tage Tage | $16.00 / :Tage Tage |
:Land
Standard Shipping - Tracked erhält bei Bestellungen mit 3 oder mehr Artikeln einen Rabatt auf $15.00
Rest der Welt
Standard Shipping - Tracked erhält bei Bestellungen mit 3 oder mehr Artikeln einen Rabatt auf $17.00
|
||
FedEx | $27.00 / :Tage Tage | $46.00 / :Tage Tage |
:Land
FedEx erhält bei Bestellungen mit 2 oder mehr Artikeln einen Rabatt auf $26.00
Rest der Welt
FedEx erhält bei Bestellungen mit 2 oder mehr Artikeln einen Rabatt auf $45.00
|
||
Express Shipping | $36.00 / :Tage Tage | $75.00 / :Tage Tage |
:Land
Express Shipping erhält bei Bestellungen mit 3 oder mehr Artikeln einen Rabatt auf $40.00
Rest der Welt
Express Shipping erhält bei Bestellungen mit 3 oder mehr Artikeln einen Rabatt auf $65.00
|
||
Registered Shipping | $9.00 / :Tage Tage | $16.00 / :Tage Tage |
:Land
Registered Shipping erhält bei Bestellungen mit 3 oder mehr Artikeln einen Rabatt auf $15.00
Rest der Welt
Registered Shipping erhält bei Bestellungen mit 3 oder mehr Artikeln einen Rabatt auf $15.00
|
||
Standard Shipping - Untracked | $5.00 / :Tage Tage | $13.00 / :Tage Tage |
:Land
Standard Shipping - Untracked erhält bei Bestellungen mit 3 oder mehr Artikeln einen Rabatt auf $15.00
Rest der Welt
Standard Shipping - Untracked erhält bei Bestellungen mit 3 oder mehr Artikeln einen Rabatt auf $13.00
|
-
Positiv
Beautiful stone! Top quality! Thank you for fast shipping and also for your Lovely gift. Look forward to doing business with you again!
-
Positiv
Fast shipmemt, good guy, nice stones
-
Positiv
Fast shipmemt, good guy, nice stones
-
Positiv
Fast shipmemt, good guy, nice stones
-
Positiv
Same as presented pictures.
-
Positiv
You need to adjust lighting properly for the same effect but that was expected based on pictures.
Warum überbieten sich Nutzer selbst?
Bei Abgabe eines Gebotes handelt es sich um den Höchstbetrag, den ein Nutzer für das Produkt zu bieten bereit ist. Unser System bietet dann automatisch im Namen dieses Benutzers und erhöht das Gebot schrittweise, um seine Position als Höchstbietender bis zum angegebenen Höchstbieten zu halten.
Wenn das Symbol „Automatisches Gebot“ angezeigt wird, bedeutet dies, dass unser System aktiv Gebote für den Benutzer auf der Grundlage seines Höchstgebots abgibt. Dies mag so aussehen, als ob die Nutzer sich selbst überbieten würden, aber es liegt einfach daran, dass das System das Gebot aktualisiert, um das Höchstlimit des Nutzers widerzuspiegeln.