Archive for the ‘Gemstones’ Category
Sunday, October 19th, 2008
Name:
It is said that the word derives from the 13th century when people mistakenly believed that the stone came from Turkey. Another source for the name could be the Persian name for the gem ‘Firouze’, where the stone has been available for thousands of years.
Description:
Turquoise has long been prized for its intense colour, which varies from sky-blue to green, depending on the quantities of iron and copper in the stone.
(more…)
Tags: Gemstones
Posted in Gemstones | No Comments »
Sunday, October 19th, 2008
Name:
The name comes from the Singhalese word “turmali,” which means “mixed.” Bright rainbow collections of gemstone varieties were called “turmali” parcels.
Description:
Tourmaline occurs in more colours and combinations of colours than any other gemstone variety, and this fact makes it live up to its name. There is a tourmaline that looks like almost any other gemstone! Tourmaline occurs in every colour of the rainbow and combinations of two or three colours. Bicolour and tricolour tourmalines, with bands of colours are very popular. Sometimes the colours are at different ends of the crystal and sometimes there is one colour in the heart of the crystal and another around the outside. One colour combination, pink centre with a green rind, is called “watermelon tourmaline”.
(more…)
Tags: Gemstones
Posted in Gemstones | No Comments »
Sunday, October 19th, 2008
Name:
The name “topaz” is derived from the Greek Τοπάζιος (Τοpaziοs), which was the ancient name of St. John’s Island in the Red Sea from which a yellow stone (believed to be chrysolite: yellowish olivine) was mined in ancient times; topaz itself (rather than topazios) wasn’t known about before the classical era. In the Middle Ages the name topaz was used to refer to any yellow gemstone, but now the name is only properly applied to the silicate.
(more…)
Tags: Gemstones
Posted in Gemstones | No Comments »
Sunday, October 19th, 2008
Name:
The name of the gemstone is believed to come from either the Arabic word faridat meaning “gem” or the French word peritot meaning “unclear.”
Description:
Peridot is one of the few gemstones that comes in only one color. The depth of green depends on how much iron is contained in the crystal structure, and varies from yellow-green to olive to brownish green. Peridot is also often referred to as “poor man’s emerald”. Olivine is a very abundant mineral, but gem-quality peridot is rather rare. Peridot crystals have been collected from iron-nickel meteorites.
(more…)
Tags: Gemstones
Posted in Gemstones | No Comments »
Sunday, October 19th, 2008
Description:
Moonstones come in a variety of colours. The body colour can range from colourless to grey, brown, yellow, green, or pink. The clarity ranges from transparent to translucent. The best moonstone has a blue sheen, perfect clarity, and a colourless body colour.
(more…)
Tags: Gemstones
Posted in Gemstones | No Comments »