Geologists have long been challenged to explain how geodes, those mysterious spherical rocks, are formed. Geodes are a variable phenomenon, which means that they may be created in various different ways. The term geode is derived from the Greek word Geoides which means earthlike..A geode is a round rock which contains a hollow cavity lined with crystals. Rocks which are completely filled with small compact crystal formations such as agate, jasper or chalcedony are called nodules.The only difference between a geode and a nodule is that a geode has a hollow cavity, and a nodule is solid.eologists have long been challenged to explain how geodes, those mysterious spherical rocks, are formed. Geodes are a variable phenomenon, which means that they may be created in various different ways. The term geode is derived from the Greek word Geoides which means earthlike..
For 2015, you can contribute the maximum $5,500 to a Roth IRA ($6,500 if you are age 50 or older by the end of the year) if you are single or the single head of a household and your modified adjusted gross income (MAGI) is less than $164,000.
Roth IRA Contribution Limits for Individuals Under 50. Individuals who are under 50 years old may contribute $5,500 to an IRA. This amount is the maximum you may deposit per year across all IRAs you may have with multiple providers, including both Traditional or Roth IRAs. For example, you could contribute $2,500 to a Roth IRA with one provider and $3,000 with a second provider. You cannot contribute $5,500 to the first Roth IRA and $5,500 to the second provider. Your total contribution limit is $5,500 for all accounts for the tax year.