Geometric Gold

Identify this spider?
After clearing rubbish and taking to the tip, we found a black spider with geometric gold markings on its back. Never seen one before in my life. It was in my car boot, so we caught it and released it into the garden (didn’t want it living in my car!!) What is it, and should I have photographed it and kept it in case it was special or dangerous?? Bit worried and very curious too.
It might be this:
http://www.google.com/imgres?imgurl=http://www.ianimals.com/animals/black_and_yellow_garden_spider.jpg&imgrefurl=http://www.ianimals.com/pictures/Black_and_Yellow_Garden_Spider.html&usg=__S8gcC5_pD4j2THtFhB_Mn3FgPl8=&h=400&w=500&sz=32&hl=en&start=8&um=1&itbs=1&tbnid=eaiwu9PdHSQG6M:&tbnh=104&tbnw=130&prev=/images%3Fq%3Dblack%2Band%2Bgold%2Bspider%26um%3D1%26hl%3Den%26sa%3DN%26rlz%3D1W1GWYE_en%26ndsp%3D18%26tbs%3Disch:1
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If not, you can browse spiders there to see if yours is one of them.
Tagged as:
geometric gold bracelet,
geometric gold earrings,
geometric gold necklace,
geometric gold pendant,
geometric golden square,
geometry golden mean,
geometry golden ratio,
geometry golden rectangle