Chrysoprase stones result from the lateritization or deep weathering of nickeliferous serpentinites and other ultramafic ophiolite rocks. In the deposits in Australia, it occurs as nodules and veins with brown goethite and other iron oxides forming below iron and silica caps that are rich in magnesite.

Where is chrysoprase found?

The best known sources of chrysoprase are Indonesia, Queensland, Western Australia, Haneti Tanzania, Germany, Poland, Russia, Arizona, California, and Brazil. Deposits in central Tanzania have been in constant production since 1986.

Where does the best chrysoprase come from?

Much of the best chrysoprase is mined in the Marlborough Creek District of Queensland, Australia. Many other deposits are worked in New South Wales, South Australia, and Western Australia. Chrysoprase is also found in other parts of the world.

What gem family is chrysoprase?

Chrysoprase is regarded as one of the most valuable gemstones in the Chalcedony group (the name given to the Cryptocrystalline family of Quartz).

Is chrysoprase a jasper?

Chrysoprase Jasper "Divine Truth" is a delightful stone of the green ray. It is a variety of chalcedony, which is a type of quartz, and is one of the more valuable stones of this group.

Episode 45: Chrysoprase

32 related questions found

Is chrysoprase a precious stone?

Chrysoprase is one of the chalcedony quartz group's rarest and most valuable stones. This is quite a distinction when you consider that this species includes agate, bloodstone, carnelian, jasper, and onyx!

Is chrysoprase An opal?

hrysoprase and prase opal are nickel-contain- ing green varieties of chalcedony and non- play-of-color (common) opal, respectively. Both have been used as gem materials for thousands of years. Chrysoprase was described as being the “most prized” type of chalcedony by Webster (1994, p. 233).

Is green Onyx chrysoprase?

Chrysoprase is a highly translucent, apple-green chalcedony that is frequently mistaken for jade. It is the most valuable of the chalcedonies colored green by traces of nickel silicate. ... Much of the “green onyx” and so-called chrysoprase sold today is dyed chalcedony.

Is green chalcedony same as chrysoprase?

Chrysoprase is a green variety of chalcedony, a non-crystalline quartz. Colored by tiny inclusions of pimelite, this is a rare example of a green gem whose color arises from nickel. Chromium, which imparts a green hue in emerald, can also create green chalcedony.

How can you tell if chrysoprase is real?

To tell if chrysoprase is real or manufactured, like many semiprecious stones, look for small inclusions and imperfections throughout the stone: if there are absolutely no inclusions, the stone is likely worth a lot, treated somehow, or an imitation.

What is chrysoprase worth?

Chrysoprase Value

Generally you can expect to pay a few dollars per carat for small chrysoprase stones. Large top quality chrysoprase stones usually sell for $20-30 per carat. Typical jewelry pieces which feature chrysoprase range anywhere from $30-$100, with some pieces exceeding $100.

What is the difference between jade and chrysoprase?

Chrysoprase can be easily identified through its chalcedony quartz properties and by its distinct light-green to apple-green color. With a hardness of 6.5 to 7 on the Mohs scale, jade is much softer and typically less translucent, which makes it easily distinguishable from chrysoprase.

Can opalite be in water?

Likely Immediate Result: Damage to Finish/Surface. Another significant reason we recommend against putting opalite in water (man-made or natural) is that it will likely mess up your finish. In most cases when you purchase opalite, the stone looks pretty, smooth, and shiny.

What is chrysoprase used for?

Chrysoprase heals the inner child, releasing emotions locked in since childhood. It can mend a broken heart, heal relationships and transmute negative emotions into positive ones. Chrysoprase helps one to overcome compulsive or impulsive angry thoughts and behaviour, and turns your attention to positive events.

Is chrysoprase a mineral?

Chrysoprase, brittle, translucent, semiprecious chalcedony (q.v.), a variety of the silica mineral quartz. ... Typical occurrences are in serpentine as a secondary mineral found in cavities and veins; California and Silesia have notable deposits. Imitation chrysoprase is chalcedony dyed with nickel or chromium salts.

Where is chrysoprase found in Australia?

The best quality material is mined from the famous Marlborough deposits near Rockhampton in Central Queensland. There are also numerous locations in Western Australia, the best known of which are the Yerilla, Marshall Pool, Yundamindra, Jamieson and Wingellina deposits.

Can you scratch chrysoprase?

Chrysoprase can be scratched, like any gemstone, but it is on the more durable side. Being a 7 on the MOHS hardness (out of 10) it is hard, but if you are rough with it, you might notice a few light scratches.

Can chrysoprase be in the sun?

Calcite - Can fade and get brittle in the sun. Celestite - The blue will turn to white in the sun and get brittle and possibly break. Chrysoprase - A member of the quartz family, it's a green chalcedony, and it can fade or get brittle and crack. Clear Quartz - Can only withstand about 2 hours in the sun.

What is lemon chrysoprase?

Lemon Chrysoprase is a trade name. ... While the trade name for this brightly colored gemstone is Lemon Chrysoprase, this stone is actually the yellow-green variety of a mineral called magnesite (magnesium carbonate) with nickel content. Magnesite is often found in close proximity to true chrysoprase.

Is chrysoprase safe in water?

Yes, chrysoprase can go in water safely for short periods of time. It has a composition and hardness that helps to keep its integrity when it is exposed to water in any way. ... Hardness levels will vary by every stone. Stones with a hardness that are below 6 on the Mohs scale can not handle water as well as harder stones.

Is chrysoprase a Beryl?

As nouns the difference between chrysoprase and beryl

is that chrysoprase is (mineral) a variety of light-green translucent quartz while beryl is (uncountable|mineral) a mineral of pegmatite deposits, often used as a gemstone.

How old are Ethiopian opals?

A Brief History of Opals

Though first discovered in the early 1990s, Ethiopian opals hadn't started to take off in the fine opal jewelry market until around 2008 due to a major opal discovery in the Wollo Province of Ethiopia.

How common is chrysoprase?

Chrysoprase is considered to be the rarest and most valuable stone in the chalcedony quartz group. That's quite a distinction considering that the chalcedony species includes agate, chalcedony, onyx, carnelian, bloodstone and jasper. However, chrysoprase is the least known of all the chalcedony varieties.

What goes well with chrysoprase?

The bright pink of fuchsia-colored mountain ''jade'' and tourmaline gemstones also mix well with chrysoprase. Speaking from experience, whichever way you choose to use your chrysoprase, take special care to make sure each bead is secure so you don't lose your precious investment.