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OPAL2.0 is a digital learning space for employees and partners of the Ministry of Education, Singapore.
Main opal producing countries. Opal is a hydrated amorphous form of silica (SiO 2 · n H 2 O); its water content may range from 3% to 21% by weight, but is usually between 6% and 10%. Due to its amorphous property, it is classified as a mineraloid, unlike crystalline forms of silica, which are considered minerals.
OPAL2.0 is an MOE digital learning platform that advances the philosophy of Professional Development (PD) Ownership and Leadership. It is a digital learning platform for all MOE officers that is designed primarily for personalised and collaborative learning.
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Photos of opal from around the world. Guidance for people who want to buy opal, see different types of opal, understand their names, learn about synthetics and imitations.
Opal is the product of seasonal rains that drenched dry ground in regions such as Australia’s semi-desert “Outback.” It is known for its unique display of flashing rainbow colors.
Opal gems are so unique you’ll need a special vocabulary to describe them. Learn all about the many opal varieties and how to evaluate them.
Opal History and Lore. Even today, opal invokes a feeling of magic and mystery. - Gift of Paula Crevoshay. Writers have compared opals to volcanoes, galaxies, and fireworks. Admirers gave extraordinary opals poetic names like Pandora, Light of the World, and Empress. In ancient Rome, this gem symbolized love and hope.
Jul 7, 2024 · Opal, silica mineral extensively used as a gemstone, a submicrocrystalline variety of cristobalite. In ancient times opal was included among the noble gems and was ranked second only to emerald by the Romans. In the Middle Ages it was supposed to be lucky, but in modern times it has been regarded.
Mostly known as the October birthstone, opals are fascinating miracles of nature and come in numerous varieties! When it comes to opal types and meanings, opals generally symbolize hope and innocence, but an opal’s meaning can differ based on the opal type.
