Concentrated gold rocks will give 1-2 gold ores at a time. The message "you manage to mine two gold ores!" will appear in the chatbox (not filtered) when this happens. This works in addition to the chance of receiving an extra ore if wearing Varrock armour or if boosted by the effects of a shooting star. This increases the possible ore mined to up to 4 at a time, with an overall increase in the chance of finding multiple ores. Gems cannot be obtained from this type of rock.