(also potch opal)
Definition of potch in English:
Opal which has no play of colour and is of no value.
- One potential use of common or potch opal is for the production of cristobalite for use as a dental and jewellery investment.
- It often serves as an excellent dark backing for black opals which normally have a thin segment of precious opal naturally formed on a potch backing.
- They usually consist of a very thin opal slice sandwiched between a glass or quartz top and a potch, basanite, jade, or black onyx bottom.
late 19th century: of unknown origin.
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the UK
Most popular in Canada
Most popular in Australia
Most popular in Malaysia
Most popular in Pakistan