VERY NICE NATURAL PICASSO JASPER BEADS FOR PENDANT 160CTS

1959

存货单位
尺寸（毫米）: 42.000 x 31.000 x 6.000mm
重量 (cts): 160.000
颜色

These are 3 very nice natural PICASSO JASPER beads from China...Drilled on the side...42x31x6mm/40x21x7mm...

Jasper is derived from the Greek for "spotted stone". Jasper is usually considered a chalcedony, but put by scientists in a group by itself because of its grainy structure. The finely grained, dense jasper contains up to twenty percent foreign materials that determine its color, streak and appearance. Uniform jasper is rare. It usually is multicolored, striped spotted or flamed.
Some of the most treasured gems are those that show a picture that appears to be taken from nature, called "landscapes". The saturation of the color defines the value. The choice will more often depend on taste for the appearance and composition of the stone.

Species: Chalcedony
Color: All colors, mostly striped or spotted
Chemical composition: SiO2 silicon dioxide
Crystal system: (Trigonal) microcrystalline aggregate
Hardness: 6.5 - 7 (Mohs scale)
Specific gravity: 2.58 - 2.91
Refractive index: About 1.54
Birefringence: None
Color of streak: White, yellow, brown, red
Absorption spectrum: Cannot be evaluated
Fluorescence: None

存货单位
尺寸（毫米）: 42.000 x 31.000 x 6.000 mm
重量 (cts): 160.000
颜色

These are 3 very nice natural PICASSO JASPER beads from China...Drilled on the side...42x31x6mm/40x21x7mm...

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：国家 Registered Shipping折扣至$8.00 ，适用于包含4或更多商品的订单世界其他地区 Registered Shipping折扣至$8.00 ，适用于包含4或更多商品的订单