I found this when I was doing a demolition on an old house
,it's attracted to magnet but doesn't feel like metal,it's also about 6cm in height,6cm in width the back of star is smooth with no markings and is about 5mm thick
Yes, that's what it appears to be but a relatively modern fantasy made to look old, I think. Haven't seen that particular design before but similar ones are widely peddled out of India at ridiculous prices, and have been for decades. They're usually copper or copper alloys, don't have the iridium content claimed for them, and of course have none of the magical properties attributed to them. Minimal value.