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Opal Facts & Myths | Opals Down Under

Myth: Opals need to be soaked in water occasionally to prevent cracking Fact: Australian Opal is non-porous and therefore impervious - it cannot soak up water, oil, or anything elseThe water content in an opal is determined during the formation of the stone, with water molecules locked into tiny voids within the opal's crystalline silicon structure...

Mining News and Investment Topics - MINING

Mining news topics from MINING The latest news on mining, mines and mineral properties, mining companies and metal pric...

Opal Doublets and Triplets | Opals Down Under

FAQ : What is a doublet opal?What is a triplet opal? What is the difference between doublets, triplets, and solid opals? What happens when doublets or triplets get wet?...

Australian Exporters - Exporting Companies in Western ,

Main business activity: Marketing, support and training in fluid flow and related engineering software Consultancy for the design of fluid flow systems...

South West Queensland - Wikipedia

South West Queensland is a remote region in the Australian state of Queensland which covers 319,808 km 2 (123,479 sq mi) The region lies to the south of Central West Queensland and west of the Darling Downs and includes the Maranoa district and parts of the Channel CountryThe area is noted for its cattle grazing, cotton farming, opal mining and oil and gas deposits...

Board of Directors - Basketball Australia

Basketball Australia is the governing and controlling body for the sport of basketball in Australia and is located in Wantirna South, Victoria...

Mindatorg - Mines, Minerals and More

Welcome Mindatorg is the world's largest open database of minerals, rocks, meteorites and the localities they come from Mindatorg is run by the not-for-profit Hudson Institute of Mineralogy...

Gemstone Mining in the United States - Geology

Home » Gemstones » Gemstone Mining in the United Stat Gemstone Mining in the United States A wide variety of gemstones are found throughout the United States Author: Hobart M King, PhD, GIA Graduate Gemologist...

Pictures of Opal - Black, Fire, Boulder, Rough, Crystal

Be Careful! Opals Are Fragile! Opal is a wonderful stone for earrings, pendants, brooches and rings However, it is softer than most other gemston Opal has a hardness of about 55 to 60 on the Mohs hardness scale Because of that opal is best suited for use in earrings, brooches and other pieces ....