First of all, the exchange unit for sand, internationnally accepted, is THE CONTENT OF A KODAK FILM CANISTER (30 ml). This content corresponds to the quantity 1, when 0.5 corresponds to half of this quantity.
The below rules are a good base for discussion. They can be discussed or turned by a committment between both if your proposal is nice, else we'll keep the rules.
|Numer and quantity of trade sand samples|
The Arénophilie is THE collection, which is different from others collections by the fact that sand does not have any money value. It's made by all the gifts and donations from the family, the friends or colleagues. The only value is its infinite diversity and the importance we give to it. It's out of the question to buy or sell any sample, should it be very rare!
I trade always 1 against 1 and for a fully filled container (30 ml). More quantities for the same sample are possible, please contact me.
As general rule, sand from every country against sand from the same country.
German sands against sands from the country where lives the correspondent - e.g.: I trade sands from Germany against sands from Australia with an Australian arenophile.
European sands against sands from the continent where the correspondent lives - e.g.: Spain against New Zealand with the same Australian arenophile.
Asian sand against Asian sand or Carribbean sand against Carribbean sand - e.g.: Vietnam against Thailand with any arenophile.
Some countries like Iraq, Niue, Palau, etc., with a difficult access, or some special sands are treated separately and are excluded from the previous rules.
You've to understand, that I'll not trade the sand from your garden against my double sand samples from the Antarctica, Rwanda or Niue.
Samples have to be clearly identified with the origin country, the town and the exact name of the place of discovery (e.g. name of the beach). A sand identified with "Caribbean" brings absolutely nothing and will not be accepted to trade. If the samples are only identified with a number, this number must refer to a list with its origin.
The list of my double sand samples to trade is accessible on the page "Sand trade list". Everyone can make me a sand trade proposal for sand I do not have or a list of double sand samples where I can choose what interests me. Upon agreement on the quality and the quantity of sands to trade, on a trust base, we prepare both our parcel.
I try to supply my sand samples in small plastic bags ("Ziploc bags") closed and numbered rather than in the film canisters (the quantity of 30 ml is the same, of course).
A nice, good and safe parcel! The experience teaches me that parcels are shaked about and often the canisters are open, letting sand samples mixing each other during the transportation. If you still use the cannister, please be sure they are correctly closed and taped. Then make a compact parcel and verify that there is no possibility of sand mixing inside to avoid any "accident". Avoid parcel with a weight of more than 2 kg, especially for foreign countries (cost problem). For your information, a sand sample (30 ml) weighs around 50 g.
Do not forget to place inside a paper with your name, address and/or email and the list and the origin of the sands you placed in the parcel, especially if your samples are just identified by a number.
On the parcel, for custom purposes, write the following sentence:
Mineral samples for research and study purposes, no value.
Echantillons minéraux pour études et recherches, sans valeur.
More information can be found on the site "Packing and shipping of sand".