October's Birthstone - Opal!  http://www.scarlettwillowdesigns.co.uk/blog/2015/9/30/octobers-birthstone-opal

October's Birthstone - Opal! http://www.scarlettwillowdesigns.co.uk/blog/2015/9/30/octobers-birthstone-opal

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Types of opal  photo: Amazing Geologist page on facebook  Opal  is a hydrated amorphous form of silica (SiO2·nH2O), Because of its  amorph...

Types of opal photo: Amazing Geologist page on facebook Opal is a hydrated amorphous form of silica (SiO2·nH2O), Because of its amorph...

Black Opal - Black opal is characterised by a dark body tone causing brightness of colour which is unmatched by lighter opals. Black Opals are usually mined in Lightning Ridge, New South Wales, and are the most famous, and sought-after type of opal. The term 'black opal' does not mean that the stone is completely black (a common mistake), it simply means the stone has a dark body tone in comparison to a white opal

Black Opal - Black opal is characterised by a dark body tone causing brightness of colour which is unmatched by lighter opals. Black Opals are usually mined in Lightning Ridge, New South Wales, and are the most famous, and sought-after type of opal. The term 'black opal' does not mean that the stone is completely black (a common mistake), it simply means the stone has a dark body tone in comparison to a white opal

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Ilgiz Fazulzyanov (Ильгиз Фазулзянов) Modern art nouveau opal ring.
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Types of Opals

Types of Opals

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Black Opal is a greenish type of opal with black mottling and gold flecks. Usually found in ancient hot springs, the gem is usually tumbled smooth and cut cabochon. The phrase in the North "Black as a black opal" means, effectively, not very black (or evil) at all, and is used to describe good-hearted rogues and similar individuals who would be embarrassed by praise. A typical specimen has a base value of 1000gp.

Black Opal is a greenish type of opal with black mottling and gold flecks. Usually found in ancient hot springs, the gem is usually tumbled smooth and cut cabochon. The phrase in the North "Black as a black opal" means, effectively, not very black (or evil) at all, and is used to describe good-hearted rogues and similar individuals who would be embarrassed by praise. A typical specimen has a base value of 1000gp.

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