As far as I understand, Austrian Economics adheres to subjective valuation of goods. But a couple individuals in the chat last night mentioned that the rarity of gold determines (or at least aids in) its value. I disagreed.
For example, moon rocks ought to be one of the most valuable substances on earth. Please note: I am not speaking about why certain currencies are chosen vs. others–I am simply discussing the value of goods regardless of currency status. I am not wanting to discuss why gold is chosen vs. moon rocks; I am wanting to know how value of goods is determined accoridng to AE because I was under the assumption that it was completely subjective: for instance, water could, indeed, be the most valuable substance in existence to someone dying of thirst in the desert. The amount of people who value a certain good is unimportant concerning the principle of value.
So since, according to this site, there are 841.6 pounds of moon rocks on earth at this time (brought back by space exporers). Yet according to this site, I estimate that there are about 625 million pounds of gold on the planet.
So my question is this: are moon rocks more valuable than gold because they are rarer? Or is value completely subjective and rarity does not determine value?