53_gram_possible_opalized_limb_cast_fossil_on_matrix_Australia_opal_wood_01_xnd

53 gram possible opalized limb cast fossil on matrix Australia opal wood

Here is an interesting specimen of what appears to be an opal limb cast from Australia. The opal section on matrix definitely has a petrified wood bark look, suggesting that it’s an opal replaced limb cast. It’s on matrix and looks better wet. Note, many of the pictures are taken when the specimen is wet, […]