Necklace Pendant

Hi! Recently, I discovered what appears to be a filigree necklace pendant that looks really old. Interestingly, this pendant was found on public property in the soil surface after a rain. More particularly, the pendant was found in northwest San Antonio, TX. Unfortunately what I don't know is, could it have been from the 1700s to early 1800s (colonial Spain) or from the Victorian Era (later part of the 1800s)? Could it be newer than these time periods? Thanks infinitely for the help!