|Dimensions (mm)||34 x 21 x 6mm|
|Weight (carats)||not provided|
This is a botryoidal agate treated by vapor deposition to give this stunning look.
Weight 27.40 cts app
Size 34 x 21 x 6 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.
One of my favorite sellers. Alway professional and ready to answer any questions. Fast transaction and shipping. Highly recommended.2.56 CTS PAIR OF TRILLIANT CUT PERIDOT GEMS (ST8601)
|Starts||27th Apr 2017 10:02pm PDT|
|Ends||29th Apr 2017 10:00pm PDT|
|Registered Shipping||$15.00||10 Days|
|Standard Shipping||$4.00||21 Days|
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