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This document gives guidance on developing and implementing projects. These are designed to inform and guide groups undertaking programs, regardless of funding source or type of project. Because every site is different, the emphasis is on identifying important components to all ...

Step 3. Assess the potential recovery of the various ecological 63 Step 4. Prioritise riparian 63 Step 5. Prioritise -ground actions according to their ability to multiple ecosystem functions 63 Implementation, monitoring and evaluation (steps 6 to 9) 67 Step 6.

Enhancing to improve their appearance is a time-honored tradition dating back over 3,000 years. Archeologists discovered heat-enhanced carnelian dated to about 1,300 BCE in Tutankhamun's tomb. The writings of Pliny the Elder (1st century CE) discuss many techniques foil backing, oiling, and dyeing.

In the process of smoke , hydrophane opal is exposed to concentrated smoke, gradually darkening the body color as it permeates inside the opal. Tea is commonly used to give an aged look to ivory and bone. The material is simply soaked in a strong tea until the desired result is reached. The Process of Bleaching

Maxixe. Maxixe provided by bravogems. Maxixe is a rare and intriguing type of , made up of elements like beryllium, aluminum, silicon, and oxygen. It stands out among other types due to its unique coloring and properties. Maxixe is known for its deep blue to violet color, which can be quite striking.

is a mineral that comes in various colors and is often found in Colombia, Brazil, and Russia. It's primarily used as a is popular for its range of colors green, blue, and yellow. Crystal. is a versatile that comes in a range of colors green, blue, and yellow.

amber include heat , dye, and reconstitution. Coatings and fracture fillings are less . Heat darken the color and leave "sun spots." These spots appear like glitter within the stone. The fracture spots in this piece of amber are evidence of heat .

Trapiche : This crystal exhibits a wheel-like pattern and is admired for its aesthetic appeal. -Muscovite: A silvery white mineral that promotes balance, intuition, and spiritual growth. Precious : Includes Emerald (green), Aquamarine (blue), and Morganite (pink). These rare crystals are valued for their beauty and metaphysical ...

A few are less stable and should be avoided by the knowledgeable buyer. Following is a description of some . This is just the tip of the iceberg. Please refer to the recommended reading list at the bottom of the page for further information. In the past, of were usually done by the cutter.

Beryllium . Beryllium (Be heat) is a recent addition to techniques for treating .Beryllium is a form of heat , mainly for loose sapphire, that adds the element beryllium to the heating process.Beryllium is a well-known element in the gem world, since it is an essential constituent of many emerald, , aquamarine and ...

Pezzottaite, also known as raspberry or red , is a rare that belongs to the mineral family. It is named after Italian mineralogist Dr. Federico Pezzotta, who first identified and described the mineral in the late 1990s. Pezzottaite stands out for its vibrant red to pink color, resembling raspberries, which makes it highly desirable among collectors and ...

Larger tend to be more valuable, assuming all other quality factors are equal. However, the overall value of a is determined by a combination of factors, color, clarity, and cut. . may undergo various to enhance their appearance or durability.

Heating is an ancient and widely used process for improving color. With disclosure, it's considered acceptable by the trade. On the other hand, diffusion can be challenging to detect , therefore, offers unscrupulous dealers an opportunity to commit fraud through intentional non-disclosure of the process. This artificial ...

is one of the most important groups. It is abundant in mineral form, but rarely occurs with transparent gem-quality material. Transparent specimens are referred to as 'precious . most famous member of the family is green emerald, followed secondly by blue aquamarine. Even though is one of the most important ...

Synthetic emeralds are easy to detect as the colour is vibrant and the are free of inclusions. A large natural emerald free of inclusions is very rare. It is clear that the range of colours in emeralds are diverse and should be appreciated by jewellers and their clients alike. More reading Colour investigation: (Part 2)

Pure is colorless; traces of different impurities are responsible for the color diversity and varieties. The list below describes each color variety, and most have a link for more specific information for that variety: Emerald, the green variety, is the most popular green is one of the most valuable gems.; Aquamarine, the blue to blue-green variety, is the most ...

Specifications and Characteristics. is a chemical compound called beryllium aluminum silicate. The durable gem ranks 7.5-8 on the Mohs scale of mineral hardness, right below sapphires and diamonds. Color: Green, blue, yellow, red, pink, colorless. Crystal structure: Hexagonal.

Bleaching. - a chemical used to alter / reduce a component of, or the entire color, of a porous gem. Some are bleached and then dyed, a form of "combination .". 1. The most commonly encountered bleached gems include:

are applied to gems to improve their appearance and wearability. Some of these procedures have been used for centuries, while others are recent. People in the gem industry choose based on the gem type and the desired effect. Although some are commonplace, the gem-buying public remains ...

Australian is a member of the mineral family (from the ancient Greek 'beryllos', meaning blue-green stone), commonly known as the 'mother of because of its highly regarded gem varieties. While pure is colorless, it is an 'other colored' , meaning that trace amounts of elements such as chromium ...

: , , often undergo to improve their appearance or marketability. Some applied to other include: Heat : Heat is a method used to enhance the color of . example, heat can ...

second most market is irradiation. ... the NRC radiation limits for watches (considered a useful item where jewelry isn't) is far higher than the limits for . Some which are considered "Irradiation" (such as gamma irradiation) also do not introduce any radioactivity into the gem material ...