Introduction to gem types
j.Opal Opal "October Birthstone" Introduction
Opal, also known as "play-of-color gemstone", is derived from the Greek word "Opallos", which means "seeing changes in color". This gemstone is the only gemstone to display a rainbow of...
j.Opal Opal "October Birthstone" Introduction
Opal, also known as "play-of-color gemstone", is derived from the Greek word "Opallos", which means "seeing changes in color". This gemstone is the only gemstone to display a rainbow of...
i. Introduction to Sapphire "September Birthstone"
Sapphire is an oxide mineral that belongs to the corundum family. Its English name is "Sapphire", which is derived from the Greek "Sappheiros", which means "blue stone". Sapphire is the...
i. Introduction to Sapphire "September Birthstone"
Sapphire is an oxide mineral that belongs to the corundum family. Its English name is "Sapphire", which is derived from the Greek "Sappheiros", which means "blue stone". Sapphire is the...
k. Tourmaline (tourmaline) Tourmaline "October ...
Tourmaline, also known as "tourmaline", is a boron-rich cyclic silicate mineral with a complex composition. Its name is derived from the Sinhala word "toramalli", which means "a gem with mixed...
k. Tourmaline (tourmaline) Tourmaline "October ...
Tourmaline, also known as "tourmaline", is a boron-rich cyclic silicate mineral with a complex composition. Its name is derived from the Sinhala word "toramalli", which means "a gem with mixed...
h. Peridot "August birthstone"
The mineral scientific name of olivine is "Olivine", and its main components are silicates of magnesium and iron. The chemical formula is (Mg, Fe)2SiO4, and its crystal structure belongs to...
h. Peridot "August birthstone"
The mineral scientific name of olivine is "Olivine", and its main components are silicates of magnesium and iron. The chemical formula is (Mg, Fe)2SiO4, and its crystal structure belongs to...
f. Pearl "June Birthstone" introduction
Pearl is an organic gemstone containing calcium carbonate, which is mainly produced in the molluscs of pearl shells and nacre. Its chemical composition is CaCO3 (calcium carbonate). The specific gravity...
f. Pearl "June Birthstone" introduction
Pearl is an organic gemstone containing calcium carbonate, which is mainly produced in the molluscs of pearl shells and nacre. Its chemical composition is CaCO3 (calcium carbonate). The specific gravity...
e. Emerald "May birthstone" introduction
Since ancient times, emerald has been regarded as one of the most precious gemstones and is also known as the "King of Emeralds". It has been loved by people for...
e. Emerald "May birthstone" introduction
Since ancient times, emerald has been regarded as one of the most precious gemstones and is also known as the "King of Emeralds". It has been loved by people for...