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5 carat natural sphene from Africa
- SKU
- Afmetingen (mm)
- 10.930 x 9.300 x 5.620mm
- Gewicht (cts)
- 5.000
- Treatment
- No Treatment
- Shape
- Cushion
- Type
- Faceted
- Kleuren
-
Sphene, also known as titanite, is a rare calcium titanium silicate mineral. It is prized as a gemstone due to its striking brilliance and fire, which often rivals that of diamond. Its name derives from the Greek word “sphenos,” meaning “wedge,” referring to its typical crystal shape.
Key Characteristics:
1. Color: Sphene occurs in a variety of colors, including green, yellow, brown, orange, and reddish hues. The green variety is often the most sought after in jewelry.
2. Luster: It has an adamantine to resinous luster.
3. Fire: Sphene exhibits high dispersion, splitting light into a rainbow of colors, making it highly sparkly under proper lighting.
4. Hardness: It has a Mohs hardness of 5-5.5, making it relatively soft and suitable for occasional wear in jewelry.
5. Clarity: Sphene stones often contain inclusions, but clean specimens are more valuable.
6. Crystal Structure: It crystallizes in the monoclinic system, forming wedge-shaped crystals.
7. Refractive Index: It has a high refractive index (1.843–2.110), contributing to its brilliance.
Locations:
Sphene is found in regions like Brazil, Madagascar, Pakistan, Sri Lanka, Russia, and Canada.
Uses:
Due to its softness, sphene is typically used in earrings, pendants, or as a collector’s gem. Its unique optical properties make it a favorite among gem enthusiasts. It is also valued for its use in scientific research due to its high titanium content.
Would you like more details on its geology, or perhaps tips for gemstone care?
- SKU
- Afmetingen (mm)
- 10.930 x 9.300 x 5.620 mm
- Gewicht (cts)
- 5.000
- Treatment
- No Treatment
- Shape
- Cushion
- Type
- Faceted
- Kleuren
-
Sphene, also known as titanite, is a rare calcium titanium silicate mineral. It is prized as a gemstone due to its striking brilliance and fire, which often rivals that of diamond. Its name derives from the Greek word “sphenos,” meaning “wedge,” referring to its typical crystal shape.
Key Characteristics:
1. Color: Sphene occurs in a variety of colors, including green, yellow, brown, orange, and reddish hues. The green variety is often the most sought after in jewelry.
2. Luster: It has an adamantine to resinous luster.
3. Fire: Sphene exhibits high dispersion, splitting light into a rainbow of colors, making it highly sparkly under proper lighting.
4. Hardness: It has a Mohs hardness of 5-5.5, making it relatively soft and suitable for occasional wear in jewelry.
5. Clarity: Sphene stones often contain inclusions, but clean specimens are more valuable.
6. Crystal Structure: It crystallizes in the monoclinic system, forming wedge-shaped crystals.
7. Refractive Index: It has a high refractive index (1.843–2.110), contributing to its brilliance.
Locations:
Sphene is found in regions like Brazil, Madagascar, Pakistan, Sri Lanka, Russia, and Canada.
Uses:
Due to its softness, sphene is typically used in earrings, pendants, or as a collector’s gem. Its unique optical properties make it a favorite among gem enthusiasts. It is also valued for its use in scientific research due to its high titanium content.
Would you like more details on its geology, or perhaps tips for gemstone care?
Verzend provider | Verzending naar Thailand | Verzending naar de rest van de wereld |
---|---|---|
Standard Shipping - Tracked | $15.00 / 15 | $15.00 / 21 |
Thailand
Standard Shipping - Tracked krijgt korting op $20.00 bij bestellingen met 2 of meer artikelen
Rest van de wereld
Standard Shipping - Tracked krijgt korting op $20.00 bij bestellingen met 2 of meer artikelen
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FedEx | $40.00 / 5 | $40.00 / 7 |
Thailand
FedEx krijgt korting op $45.00 bij bestellingen met 2 of meer artikelen
Rest van de wereld
FedEx krijgt korting op $45.00 bij bestellingen met 2 of meer artikelen
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Positief
Very nice customer service!
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Positief
Waarom overbieden gebruikers zichzelf?
Wanneer een bod wordt geplaatst, is dit het maximale bedrag dat een persoon bereid is te bieden voor het product. Ons systeem zal dan automatisch bieden namens de bieder, waarbij het bod stapsgewijs wordt verhoogd tot het maximum om hun positie als hoogste bieder te behouden.
Wanneer er een pictogram is dat 'Automatisch bod' aangeeft, betekent dit dat ons systeem actief biedingen plaatst voor de bieder op basis van hun maximale bod. Dit kan lijken alsof bieders zichzelf overbieden, maar het is gewoon een resultaat van het systeem dat het bod bijwerkt om de maximale limiet van de bieder weer te geven.