Item Information

Dimensions (mm) not provided
Weight (carats) not provided
Certified Gemstone



This is a botryoidal agate treated by vapor deposition to give this stunning look.


Weight 18 cts app

Size 25X18X5  mm app

A botryoidal texture or mineral habit is one in which the mineral has a globular external form resembling a bunch of grapes as derived from the Greek. This is a common form for many minerals particularly hematite where it is the classically recognized shape. It is also a common form of goethite, smithsonite, fluorite and malachite. This includes chrysocolla.

Chemical vapor deposition (CVD) is a chemical process used to produce high-purity, high-performance solid materials. The process is often used in the semiconductor industry to produce thin films. In a typical CVD process, the wafer (substrate) is exposed to one or more volatile precursors, which react and/or decompose on the substrate surface to produce the desired deposit. Frequently, volatile by-products are also produced, which are removed by gas flow through the reaction chamber.

16h 8m 51s

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Pricing & Details

Bid Increment $1.00
Starting Bid $28.00
Auction ID 219405
Watchers 6 watching
Viewed 547 times
Starts 25th Oct 2016 11:57pm PDT
Ends 27th Oct 2016 11:55pm PDT

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