Boulder opal specimens are mined in Queensland Australia.
Specimens are popular with opal collector as some show stunning colours. the opal miner when checking rocks will hit it with hammer to expose colour and these make interesting specimen as most colour is still hidden ..
Some boulder opal specimens from Winton or Quilpie opal fields are slabbed and polished as opal specimen ideal for office business cards or paper weight. Source your Boulder opal specimens direct from opal miners and opal wholesalers and dealers for your single gem opal specimen or parcel boulder opal specimens from Quilpie or Winton Australia Boulder opals are mostly shaped freeform and have colours formed on sandstone or ironstone backs so boulder opal is considered very stable.also found as pipe opal or matrix opal
