Good morning @lindamoo As a fellow artist, I love the color burnt sienna and totally get your appreciation of the color you’re describing…with sparkles as a bonus! 🙃
When blood dries, it loses oxygen and turns a brown rusty color. Usually we don’t see it quite like that because it’s often in a concentrated scab form. I’m wondering, because you wiped the blood on your arm, it allowed the blood to spread out to dry with exposing more surface area for you to see the dried results. It’s also possible the plasma in the blood, because it carries so many minerals it can dry sparkly. I’ve seen this happen on surfaces. (Career-field related). In my opinion, it doesn’t sound abnormal and wouldn’t lose sleep over it.
However, I’m not a doctor and don’t want to dismiss the fact that you mentioned that you clot super quickly. If you feel this is abnormally fast you may want to have a CBC blood test run at your next physical to check your platelets level. Just to reassure yourself that all your blood perimeters are normal.
When’s the last time you had a blood test?