Inicio > Term: sandstone opal
sandstone opal
A variety of opal occurring in boulders between layers of sandstone and soft clay in the form of pipes in thickness from 1 mm to 3 cm.
- Parte del discurso: noun
- Industria/ámbito: Minería
- Categoría: Minería general; Mineral mining
- Government Agency: USBM
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Creador
- ed.young
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(Milwaukee, United States)
