Ethiopian Opals are mined in Ethiopia North Africa are have only been mined recently .
most opals are formed as Nobby and have characteristics or brown potch with bright red to green flashes colour. these opals are not considered as stable as Australian opals but value for money for bright colours.
Gondar is a new field only worked in the last few eyars and is more fo a crystal formation than the brown or dark nodule opals from ethopia
Source your Ethiopian opals direct from opal miners and opal wholesalers and dealers for your single gem opal or parcel Ethiopian Anthropologist report that around 4,000 years BC that early man used opals to make tools. so Africa mined opals before Australia, most likely also in Kenya. A lot of Ethiopian opal does craze and have inclusions but do have brilliant fire colours