MUSTARD JASPER FROM INDONESIA 17.10 CTS [MX7956]

Item Information

Dimensions (mm) 25 x 18 x 5mm
Weight (carats) not provided
Colors
Certified Gemstone

MUSTARD JASPER

This is a natural untreated jasper mined in volcanic areas of indonesia-The stone takes a terrific polish with great colours.

Weight 17.10 cts app

Size 25 x 18 x 5 mm app

Jasper is an opaque rock of virtually any color stemming from the mineral content of the original sediments or ash. Patterns arise during the consolidation process forming flow and depositional patterns in the original silica rich sediment or volcanic ash. Hydro-thermal action is generally thought to be required in the formation of jasper.

 

Picture jaspers exhibit combinations of patterns (such as banding from flow or depositional patterns (from water or wind), dendritic or color variations) resulting in what appear to be scenes or images, on a cut section. Diffusion from a center produces a distinctive orbicular appearance, i.e., Leopard Skin Jasper, or linear banding from a fracture as seen in Leisegang Jasper. Healed, fragmented rock produces brecciated (broken)

$15.00 USD

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Pricing & Details

Auction ID 213746
Watchers 2 watching
Viewed 1,227 times
Starts 25th Feb 2011 10:14pm PST

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