See the related link for a photo.Like Many metals it has alot to do with the geology of the ground where it is found, such as gold which can be black (oro preto) ect. If it is in crystal form it is...
A1. Platinum can occur in many forms in nature. The platinum group elements (platinum, palladium, rhodium, ruthenium, iridium, osmium) generally occur as alloys with iron or with transition group...