Amethyst is a popular form of quartz that ranges from a bright to dark or dull purple color. The world's largest deposits of amethysts can be found in Brazil, Mexico, Uruguay, Russia, France, Namibia and Morocco. Sometimes amethyst and citrine are found growing in the same crystal.It is then referred to as ametrine.ilk quartz or milky quartz is the most common variety of crystalline quartz. The white color is caused by minute fluid inclusions of gas, liquid, or both, trapped during crystal formation, making it of little value for optical and quality gemstone applications.
I have a 55 gallon tank. Currently I have 3 rainbows (2 goyder river, 1 Parkinsoni). I was just wondering how many more rainbows I should/could stock?I also have a RTS in the tank... and I was thinking that I might also like a small school of tetras or threadfin rainbows in the mix.he rainbows that you currently have will max out at about 4-5, so you probably could add 3 to 5 more in that size range. Then if you added some threadfin (max size around 2) in a group of 8-10 would be pretty. Or, if you added some Celebes (max size around 3) then a group of 6 would be neat.
1 $ 114.99 S & H: $ 0.00. 2  help 60s tank emblems that will fit all harley 5 and 6 gallon tanks. 3  Show chrome and tan Made of metal Includes brackets that attaches to tank with 3M, then the emblems attach to brackets with stainless steel screws.