International audiencePrompted by the increasing number of laboratory-grown gems and the growing sophistication of treatments of natural stones, gemology has evolved into a science of its own. The discipline is rapidly incorporating relevant aspects of materials science and chemistry, and it is consolidating its activities and Its terminology. Gemology is becoming an important area of specialization for mineralogists. If the study of beautiful, fashioned materials seems frivolous to some, it is worth noting that 20 to 25 billion dollars per year are at stake, and the study of natural gem materials and their treated and manufactured counterparts is essential in order to avoid frauds and protect the consumer
The purpose of this activity is to demonstrate how individual subjective taste is a factor in value ...
In colored gems, minor and trace chemical components commonly determine the difference between a com...
In recent years there has been an escalation in the number of mineralogical studies involving cultur...
Gems have been used in the manufacture of jewellery and as ornaments since antiquity. Considering ge...
As clever minds combine an ever-increasing menu of high-tech methods in the quest to enhance the p...
Diamonds, rubies, emeralds, jade, pearls—these are the seeds of many dreams (FIG. 1). Gems are assoc...
The first decade of the 2000s continued the trend of using more powerful analytical instruments to ...
A variety of synthetic and natural gem materials are discussed in this article. Their preparation te...
Under the pressure of industrial demands following the discovery of South African diamonds, gemmolog...
This paper defines and specifies the groups of natural gemstones. It deals with gemstone classificat...
Gems are well-compressed small pieces found in mineral deposits found inside earth. Pearls and amber...
This United States Geological Survey (USGS) site highlights information about gemstones. The geologi...
Since antiquity, gems fascinated worldwide cultures, being used for adorning jewels or precious obje...
Advances in technology have brought great advances in our ability to impart color to natural gemst...
Data on the countries producers of emeralds, their contribution to universal production are stated. ...
The purpose of this activity is to demonstrate how individual subjective taste is a factor in value ...
In colored gems, minor and trace chemical components commonly determine the difference between a com...
In recent years there has been an escalation in the number of mineralogical studies involving cultur...
Gems have been used in the manufacture of jewellery and as ornaments since antiquity. Considering ge...
As clever minds combine an ever-increasing menu of high-tech methods in the quest to enhance the p...
Diamonds, rubies, emeralds, jade, pearls—these are the seeds of many dreams (FIG. 1). Gems are assoc...
The first decade of the 2000s continued the trend of using more powerful analytical instruments to ...
A variety of synthetic and natural gem materials are discussed in this article. Their preparation te...
Under the pressure of industrial demands following the discovery of South African diamonds, gemmolog...
This paper defines and specifies the groups of natural gemstones. It deals with gemstone classificat...
Gems are well-compressed small pieces found in mineral deposits found inside earth. Pearls and amber...
This United States Geological Survey (USGS) site highlights information about gemstones. The geologi...
Since antiquity, gems fascinated worldwide cultures, being used for adorning jewels or precious obje...
Advances in technology have brought great advances in our ability to impart color to natural gemst...
Data on the countries producers of emeralds, their contribution to universal production are stated. ...
The purpose of this activity is to demonstrate how individual subjective taste is a factor in value ...
In colored gems, minor and trace chemical components commonly determine the difference between a com...
In recent years there has been an escalation in the number of mineralogical studies involving cultur...