Wood Precious coral “  A pearl is a hard object produced within the soft tissue (specifically the mantle) of a... Pearl Ammolite “Amber (or, technically, resinite) is fossilized tree resin (not sap), which has been appreciated... Amber Jet “ Copal Pages in category "Unusual minerals" The following 7 pages are in this category, out of 7 total. A Amber AmmoliteC Copal J JetP Pearl Precious coral W Wood Retrieved from "http://wikiminerals.wikia.com/wiki/Category:Unusual_minerals" Ad blocker interference detected! Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.