GeologyRocksWhat colour would my world be if...
- Login to post a new forum topic.
Rank:
Roles:
Contact:
Rank:
Contact:
Ah ha! Hello there folks.
Sat, 07/07/2007 - 21:59Ah ha!
Hello there folks. Some options then 
Jon: Purple sunlight, or maybe some athmosperic contaminant that causes only the relevent wavelengths to transmit is an option, but my last one. Seems a bit of a cheat you know
TimCSM: Flourite... hmm. I don't know alot about the mineral in question, so my research comes from that glorious source of inaccuracy, Wikipedia. WP seems to indicate that the mineral is predominanyly found near hydrothermal deposits, and with metal ore. Possibly a reason to be in the planet in the first place?
Is it possible for Flourite to exist on the surface of a planet in sufficient quatities to make a region utterly purple?
Once I'm happy with this one, we can move onto green :) It's an interesting problem, colouring a large area with a natural phenomena... you've got to justify the existance of the mineral on the surface and in for form you have chosen.
Rank:
Contact:
I do not know if you could
Thu, 07/12/2007 - 23:28I do not know if you could manage to cover an entire planet like it, however, assuming you have a nearby source of purple orthoclase rock that by some weird phenomena lack any other significant minerals you could then get flat areas covered by purple, orthoclase sands and rocks. The same could be possible with some other Feldspar minerals or in rare cases I do recall near purple Carbonatite rocks. In any case you need a rock melt underneath depleted of SiO2 so that no Quartz can form.
Rank:
Contact:
how about a high level layer
Fri, 07/13/2007 - 11:26to make the whole planet purple, how about a high level layer of purple gas like iodine? then lower levels of normal atmosphere. i know this is kind of mixing some of the previous posts, but if the local star emmited radiation that matched the ionization wavelength of iodine in high quantities, it would keep the iodine at high levels of the atmosphere, with the nice breathable stuff lower down! end up looking like a purple version of jupiter or something.
Rank:
Contact:
What colour would my world be if...
Submitted by Oddball on Fri, 07/06/2007 - 16:29.Hi there folks,
I'm new in these parts, so I though I would kick off with an interesting question with a bit of a sci-fi slant. We've all seen the weird and random colours of planets in Sci-Fi TV shows: lets see if we can put some science behind it.
There is one particular colour I'm trying very hard to explain away for my own use (more later). How would I make a planet - or maybe just a desert on a planet - purple.
My first thought was Amethyst outcroppings (Large, Sci-Fi style crystals thrusting up out of the ground) but then I remembered that the Amethys would probably burn to the (absolutly horrible) Citrine yellow after any length of time. Then I though Potassium Permanganate mixed in with the sand - it would be a very nice colour until it rapidly oxidised the nearest bunch of alien flora and burned away.
To top it all off, the purple world needs to have a breatheable athmosphere so Kirk or his ilk can run about and get his shirt ripped.
So - your mission... explain away a purple world.