无保留价 - 重量 8.50 克拉 天然埃塞俄比亚黑欧泊 - 椭圆形 弧面形 - 高度: 7 mm - 宽度: 5 mm- 1.7 g
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来自埃塞俄比亚沃洛的天然埃塞俄比亚黑欧泊， cabochon 形状，重量1.70 g，尺寸7 × 5 × 3 mm，经过烟熏处理。
AI辅助摘要
卖家的描述
Beautiful Parcel of Natural Black Ethiopian Cabochon Opals from Wello, Ethiopia.
Clarity: from transparent to opaque;
Dimensions: 7 X 5 X 3 mm;
Treatment: smoked.
Pictures taken with high resolution camera on different backgrounds in order to depict the opals as realistically as possible.
Worldwide shipping with registered mail and tracking number.
An opal is a hydrated form of silica with a water content ranging from 3 to 21%. Indeed, it is this permeability to water that makes it a hydrophile.
Opals are deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, marl, and basalt. Only precious opals show a variable interplay of internal colors.
At microscopic scales, precious opal is composed of silica spheres some 150 to 300 nm in diameter in a hexagonal or cubic close-packed lattice. These ordered silica spheres produce the internal colors by causing the interference and diffraction of light passing through the microstructure of the opal.
Beautiful Parcel of Natural Black Ethiopian Cabochon Opals from Wello, Ethiopia.
Clarity: from transparent to opaque;
Dimensions: 7 X 5 X 3 mm;
Treatment: smoked.
Pictures taken with high resolution camera on different backgrounds in order to depict the opals as realistically as possible.
Worldwide shipping with registered mail and tracking number.
An opal is a hydrated form of silica with a water content ranging from 3 to 21%. Indeed, it is this permeability to water that makes it a hydrophile.
Opals are deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, marl, and basalt. Only precious opals show a variable interplay of internal colors.
At microscopic scales, precious opal is composed of silica spheres some 150 to 300 nm in diameter in a hexagonal or cubic close-packed lattice. These ordered silica spheres produce the internal colors by causing the interference and diffraction of light passing through the microstructure of the opal.
详细资料
主要矿物
No Reserve - Ct. 8.50 Natural Ethiopian Black Opals - Oval
矿物形式
弧面形
重量
1,7 g
原产地（地区/城市）
Wello
国家
埃塞俄比亚
高度
7 mm
宽度
5 mm
深度
3 mm
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某些宝石和矿石被认为是对人体的健康和精神有益的吉祥物。 但是，使用或佩戴宝石或矿石并不意味着您可以治疗、痊愈或预防任何疾病。 请咨询您的卫生保健专业人员以获取有关医疗保健问题的详细信息，并且请勿在未咨询您的卫生保健专业人员之前停止使用任何药物治疗或疗程。 使用宝石或矿石作为健康疗法是个人选择中的一项。 虽然自古以来石头或水晶被用于缓解或预防症状，但我们网站上出售的物品不提供疗效的保证。 因此，Catawiki 不能保证或对在此出售的类似物品的有效性承担任何责任。
