SNOW FLAKE OBSIDIAN CABOCHON CUT STONE 10.40 CTS
- 存货单位
- 尺寸(毫米)
- 19.000 x 13.000 x 5.000mm
- 重量 (cts)
- Certified Gemstones
- 不
- 颜色
-
SNOW FLAKE OBSIDIAN NATURALLY OCCURRING VOLANIC GLASS WHICH IS NOW READY FOR ANY JEWELLERY SETTING HIGH POLISHED STONE.
WEIGHT : 10.40 CTS
SIZE MM: 19 x 13 x 5
( 6 MM IS APPROX 1/4 INCH )
CODE : G 539
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth. Obsidian is commonly found within the margins of rhyolitic lava flows known as obsidian flows, where the chemical composition (high silica content) induces a high viscosity and polymerization degree of the lava. The inhibition of atomic diffusion through this highly viscous and polymerized lava explains the lack of crystal growth. Obsidian is hard and brittle; it therefore fractures with very sharp edges, which had been used in the past in weapons, and are still used as surgical scalpel blades.[1]
- 存货单位
- 尺寸(毫米)
- 19.000 x 13.000 x 5.000 mm
- 重量 (cts)
- Certified Gemstones
- 不
- 颜色
-
SNOW FLAKE OBSIDIAN NATURALLY OCCURRING VOLANIC GLASS WHICH IS NOW READY FOR ANY JEWELLERY SETTING HIGH POLISHED STONE.
WEIGHT : 10.40 CTS
SIZE MM: 19 x 13 x 5
( 6 MM IS APPROX 1/4 INCH )
CODE : G 539
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth. Obsidian is commonly found within the margins of rhyolitic lava flows known as obsidian flows, where the chemical composition (high silica content) induces a high viscosity and polymerization degree of the lava. The inhibition of atomic diffusion through this highly viscous and polymerized lava explains the lack of crystal growth. Obsidian is hard and brittle; it therefore fractures with very sharp edges, which had been used in the past in weapons, and are still used as surgical scalpel blades.[1]
运输商 | 运送至:国家 | 运送到世界其他地区 |
---|---|---|
FedEx | $12.00 / :几天天 | $39.00 / :几天天 |
:国家
FedEx折扣至$12.00 ,适用于包含2或更多商品的订单
世界其他地区
FedEx折扣至$39.00 ,适用于包含2或更多商品的订单
|
||
Registered Shipping | $9.00 / :几天天 | $15.00 / :几天天 |
:国家
Registered Shipping折扣至$9.00 ,适用于包含2或更多商品的订单
世界其他地区
Registered Shipping折扣至$15.00 ,适用于包含2或更多商品的订单
|
-
积极的
Paid and shipped - no feedback left after 100 days
-
积极的
These are perfect for my purpose. Fast delivery.well packed too.
-
积极的
Lovely colour! Genuine aged item. Very well packed and fast delivery.