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Chrysoprase

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50 Gram Minimum Order

Country:

Tanzania

Model No:

-

FOB Price:

Get Latest Price

Place of Origin:

-

Price for Minimum Order:

-

Minimum Order Quantity:

50 Gram

Packaging Detail:

-

Delivery Time:

5-10 days

Supplying Ability:

-

Payment Type:

T/T, L/C

Product Group :

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Contact Person Hashim

New SABA General Building, 2nd Floor, Room No. 201, Kikuyu/ Livingstone Street, P.O.Box 16819,Arusha

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Product Specification

  • Brand Name: Widespan Gems
  • Gemstone Type: Mineral Gemstones
  • Gemstone Material: other
  • Optical Special Effects : Color Change

Product Description

Chrysoprase, chrysophrase or chrysoprasus is a gemstone variety of chalcedony (a cryptocrystalline form of silica) that contains small quantities of nickel. Its color is normally apple-green, but varies to deep green. The darker varieties of chrysoprase are also referred to as prase. (However, the term prase is also used to describe chlorite-included quartz, and to a certain extent is a color-descriptor, rather than a rigorously defined mineral variety.)

Chrysoprase is cryptocrystalline, which means that it is composed of crystals so fine that they cannot be seen as distinct particles under normal magnification. This sets it apart from rock crystal, amethyst, citrine, and the other varieties of crystalline quartz. Other members of the cryptocrystalline silica family include agate, carnelian, and onyx. Unlike many non-transparent silica minerals, it is the color of chrysoprase, rather than any pattern of markings, that makes it desirable. The word chrysoprase comes from the Greek χρυσός chrysos meaning 'gold' and πράσινον prasinon, meaning 'green'.


A polished chrysoprase stone
Unlike emerald which owes its green color to the presence of chromium, the color of chrysoprase is due to trace amounts of nickel compounds in the form of very small inclusions. The nickel reportedly occurs as different silicates, like kerolite or pimelite (not NiO mineral, bunsenite, as was reported before). Chrysoprase results from the deep weathering or lateritization of nickeliferous serpentinites or other ultramafic ophiolite rocks. In the Australian deposits, chrysoprase occurs as veins and nodules with brown goethite and other iron oxides in the magnesite-rich saprolite below an iron and silica cap.

Country: Tanzania
Model No: -
FOB Price: Get Latest Price
Place of Origin: -
Price for Minimum Order: -
Minimum Order Quantity: 50 Gram
Packaging Detail: -
Delivery Time: 5-10 days
Supplying Ability: -
Payment Type: T/T, L/C
Product Group : Gemstones

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Hashim < Wide Span Gemstones and Minerals >

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