Fool's gold is a very common term for the mineral pyrite, or iron pyrite, which is an iron sulfide. This mineral's metallic luster and pale brass-yellow hue give it a superficial resemblance to gold, hence the nickname of fool's gold.
Pyrite is the most common of the sulfide minerals. The name pyrite is derived from the Greek πυρίτης (pyritēs), "of fire" or "in fire", in turn from πύρ (pyr), "fire". In ancient Roman times, this name was applied to several types of stone that would create sparks when struck against steel. By 1550, the term had become a generic term for all of the sulfide minerals.
Pyrite is usually found associated with other sulfides or oxides in quartzveins, sedimentary rock, and metamorphic rock, as well as in coal beds and as a replacement mineral in fossils. Despite being nicknamed fool's gold, pyrite is sometimes found in association with small quantities of gold. Gold and arsenic occur as a coupled substitution in the pyrite structure.
The coordinates lead you to the small slope between car park and beach.
The indoor part:
1) The name of this cache.
2) The names of other cachers you are sending the answers for. (If you do.)
3) What is the chemical formula of fool's gold?
4) What are other nicknames for this kind of mineral?
The outdoor part:
I never thought I would have to write this down, but people told me they broke the deposits, to 'examine'. Honestly.. Please DO NOT break the deposits! Earthcaching is about discovering, not vandalizing and ruining the experience for the others.
5) Have a closer look at the deposits and describe what you see according to the 'gold' itself and the surrounding rock.
6) How big are the deposits you can find here? Estimating is fine.
7) Do you think this is pure fool's gold or something else? Why do you think so?
Please send the answers via email or preferred message center in English or German. Please send them before or shortly after you log your find and do not post them in your log. If there are any problems, feel free to contact me.