Nice example. The details you were able to extract from the stone are remarkable.
As for the conversation about photography and paranoia, I think gender really does matter in uptight countries like the U.S. I travel frequently alone and find that people have a friendly curiosity when I pull my serious gear. All kinds of people come up to speak to me, couples...elderly gents...elderly ladies....kids....passing strangers. Flashing people a friendly, shy smile seems to help too. I find showing off my camera is a great way to break the language barrier when traveling abroad. Granted, I am also 5'1" and about as threatening as a kitten, but regardless, I think women photographers enjoy many more freedoms and a great deal of latitude when photographing in public. About the only area I feel I have to limit myself is taking pictures in and around sensitive transportation centers (airports, train stations, subways). But, it those cases, I know that a brown person taking such photo may raise a ton of security flags. It's unfortunate because here in Chicago we have elevated subway tracks in the downtown/city center area that would be great subjects for long-exposure or HDR shots.
Sadly, no single men come up to chat. I think a serious camera in the hands of a women might be a bit intimidating for most men.
Here are examples of my latest reasons for loving my D800...