I WOULD LIKE TO KNOW IF YOU HAVE SEEN ANY MORE OF THEM 😳 THANKSThis is what that relic looks like undamaged. I found 2 of these decades ago and was told they are stirrups. I will stay with that ID until told differently.
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WHAT DO YOU LOOK FOR ? HOW ?You don't need a test kit.
Use the back side of a white tile.
The underside of the toilet lid.
Any white ceramic that is not glazed will work for a streak test.
Scratch test was silvery whiteTry these online instructions.
https://howtofindrocks.com/testing-streak-of-minerals/
This one has a long list of colors etc.
https://geology.com/minerals/streak-test.shtml